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7SectionFluid-End Repair Parts
June 1997 Fluid-End Repair Parts 7-1
Fluid-End Repair Parts
Fluid-End Parts ListsThe fluid-end parts lists are organized and sequenced according to fluid-endsize. Alternates are given for specific parts that can be used as a substitute if theoriginal part is not available. If a specific part is needed to perform a specific job,those parts are also noted.
Numbers listed in the Quantity (Qty) columns are the totals required to build acomplete fluid-end assembly.
Exploded views of part assemblies are referenced to location (LOC) numbers onthe parts list.
Fluid ends are available with many combinations of curved, straight, andplugged flanges and assemblies with and without spacers. Part numbers of thesecombinations are listed beginning on Page 7-111.
To find information about a particular subassembly more quickly, use the fol-lowing Parts Directory.
7Section
7-2 HT-400 Pump Maintenance and Repair Manual June 1997
Specifications DirectoryIllustrations, part numbers, and dimensions for fluid-end repair parts are pro-vided on the following pages. Use the following list to find the information youneed quickly.
3 3/8-in. Fluid-End AssembliesValve Subassembly ...................................................................................................... 7-6
Pressure-Packing Subassembly ................................................................................ 7-10
Wiper-Gland Subassembly ....................................................................................... 7-12
Plunger Subassembly................................................................................................. 7-14
Right-Hand Flange Subassembly............................................................................. 7-16
Left-Hand Flange Subassembly ............................................................................... 7-18
Fluid-End Section Subassembly ............................................................................... 7-20
Seal Plate Subassembly .............................................................................................. 7-22
Plunger Lubricator Subassembly ............................................................................. 7-24
4-in. Fluid-End AssembliesDischarge Valve Subassembly with Two-Piece Packing Nut .............................. 7-26
Suction Valve Subassembly with Two-Piece Packing Nut .................................. 7-28
Pressure-Packing Subassembly with Two-Piece Packing Nut ............................ 7-30
Wiper Gland Subassembly with Two-Piece Packing Nut .................................... 7-32
Plunger Subassembly with Two-Piece Packing Nut............................................. 7-34
Right-Hand Flange Subassembly with Two-Piece Packing Nut......................... 7-36
Left-Hand Flange Subassembly with Two-Piece Packing Nut ........................... 7-38
Fluid-End Section Subassembly with Two-Piece Packing Nut andThree Top Tie-Bolts .................................................................................................... 7-40
June 1997 Fluid-End Repair Parts 7-3
Seal Plate Subassembly with Two-Piece Packing Nut .......................................... 7-42
Plunger Lubricator Subassembly with Two-Piece Packing Nut ......................... 7-44
4 1/2-in. Fluid-End AssembliesValve Subassembly .................................................................................................... 7-46
Pressure-Packing Subassembly ................................................................................ 7-50
Wiper Gland Subassembly ........................................................................................ 7-52
Plunger Subassembly ................................................................................................. 7-54
Right-Hand Flange Subassembly ............................................................................. 7-56
Left-Hand Flange Subassembly ............................................................................... 7-58
Fluid-End Section Subassembly ............................................................................... 7-60
Seal Plate Subassembly .............................................................................................. 7-62
Plunger Lubricator Subassembly ............................................................................. 7-64
5-in. Fluid-End AssembliesValve Subassembly .................................................................................................... 7-66
Pressure-Packing Subassembly ................................................................................ 7-70
Wiper Gland Subassembly ........................................................................................ 7-72
Plunger Subassembly ................................................................................................. 7-74
Right-Hand Flange Subassembly ............................................................................. 7-76
Left-Hand Flange Subassembly ............................................................................... 7-78
Fluid-End Section Subassembly ............................................................................... 7-80
Seal Plate Subassembly .............................................................................................. 7-82
Plunger Lubricator Subassembly ............................................................................. 7-84
7-4 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid-End SubassembliesValve Subassembly .................................................................................................... 7-86
Pressure-Packing Subassembly ................................................................................ 7-90
Wiper Gland Subassembly ........................................................................................ 7-92
Plunger Subassembly................................................................................................. 7-94
Right-Hand Flange Subassembly............................................................................. 7-96
Left-Hand Flange Subassembly ............................................................................... 7-98
Fluid-End Section Subassembly ............................................................................. 7-100
Seal Plate Subassembly ............................................................................................ 7-102
Plunger Lubricator Subassembly ........................................................................... 7-104
Fluid-End AssemblySuction Ball-Valve Subassembly ............................................................................ 7-106
Discharge Ball-Valve Subassembly........................................................................ 7-108
Fluid-End Assembly Part Numbers ...................................................................... 7-110
Fluid-End Part Numbers ......................................................................................... 7-111
June 1997 Fluid-End Repair Parts 7-5
Notes
7-6 HT-400 Pump Maintenance and Repair Manual June 1997
3 3/8-in. Fluid-End AssemblyValve Subassembly
5
5a
Discharge
11
10
9
8
7
6
5
5a
5
5a
Suction
11
10
9
8
7
6
5
5a
3
4
2
1
15
14
16
13
June 1997 Fluid-End Repair Parts 7-7
3 3/8-in. Fluid-End AssemblyValve Subassembly
Tapered Seat BoresLoc Part No. Qty Description1 316.2102 3 Retainer-Cover, 3 3/8-in.2 316.2109 3 Cover Assembly-Short Discharge, No. 3 Double-Guided
Valve3 316.21052 3 Gasket, No. 3 Discharge Valve & Cylinder Head Cover, 3 3/8-in.4 316.21051 3 Ring Spacer, No. 3 Discharge Valve & Cylinder Head Cover, 3-in.5 316.22005 12 Liner, Two-piece Bushing, No. 4 Valve Guide, Brass5a* 316.22004 12 Insert, Two-piece Bushing, No. 4 Valve Guide, NBR
316.22061 12 Insert, Two-Piece Bushing, No. 4 Valve Guide, Viton6 316.2108 6 Spring, Valve, 36 lb/in.7 316.21007 6 Valve, No. 3 Frac, 3 3/8-in.8* 316.21006 6 Insert, Polyurethane, No. 3 Frac Valve, Standard Service
316.21048 6 Insert, Polyurethane, No. 3 Frac Valve, Acid/Frac Service316.21154 6 Insert, Buna N, No. 3 Frac Valve, Oil Service316.21155 6 Insert, No. 3 Frac Valve, Aflas, Severe Chemical Serivce
9 316.21008 6 Seat, Valve, Tapered, No. 3 Frac Valve10 8.34037 6 O-Ring, 90D, 4-in. x 3 3/4-in. x 1/8-in.11 316.21096 6 Retainer, Guide Bushing, Tapered Bore13 70.35717 6 Pin, Cotter, 1/8-in. x 1 1/2-in., Stainless14 316.2125 3 Spring, Lock, No. 3 Suction Stop15 316.25233 6 Boot, Suction Stop, No. 3, No. 4, & No. 5 Valve16 316.21242 3 Retainer, Stop and Spring, No. 3 Suction Valve
Parts Used in CO2 Service
Loc Part No. Qty Description3 316.21631 3 Gasket - No. 3 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
* Select insert based on fluid being pumped
7-8 HT-400 Pump Maintenance and Repair Manual June 1997
3 3/8-in. Fluid-End AssemblyValve Subassembly
June 1997 Fluid-End Repair Parts 7-9
3 3/8-in. Fluid-End AssemblyValve Subassembly
(Continued)
Straight BoresLoc Part No. Qty Description1 316.2102 3 Retainer, Cover, 3 3/8-in.2 316.2109 3 Cover Assembly, Short Discharge, No. 3 Dbl-Guided Valve3 316.21052 3 Gasket, No. 3 Discharge Valve and Cylinder Head Cover, 3 3/8-in.4 316.21051 3 Ring-Spacer, No. 3 Discharge Valve and Cyl. Hd. Cover, 3 3/8-in.5 316.22005 12 Liner, Two-Piece Bushing, No. 4 Valve Guide, Brass5a* 316.22004 12 Insert, Two-Piece Bushing, No. 4 Valve Guide, NBR
316.22061 12 Insert, Two-Piece Bushing, No. 4 Valve Guide, Viton6 316.2108 6 Spring, Valve, 36 lb/in, 3 3/8-in.7 316.21007 6 Valve, No. 3 Frac, 3 3/8-in.8* 316.21006 6 Insert, Polyurethane, No. 3 Frac Valve, Standard Service
316.21048 6 Insert, Polyurethane, No. 3 Frac Valve, Acid/Frac Service316.21154 6 Insert, Buna N, No. 3 Frac Valve, Oil Service316.21155 6 Insert-Valve, No. 3 Frac, Atlas, Severe Chemical Service
9 316.21008 6 Seat, Valve, Tapered, No. 3 Frac Valve10 8.34037 6 O-Ring, 90D, 4-in. x 3 3/4-in. x 1/8-in.11 316.21207 6 Adapter, Tapered Seat, 3 3/8-in.12 8.33828 6 O-Ring, 90D, 4 3/16-in. x 4-in. x 3/32-in.13 316.2122 6 Retainer, Guide Bushing15 70.35717 6 Pin, Cotter, 1/8-in. x 1 1/2-in., Stainless16 316.2125 3 Spring, Lock, No. 3 Suction Stop17 316.25233 6 Boot, Suction Stop, No. 3, No. 4, & No. 5 Valve18 316.21242 3 Retainer, Stop and Spring, No. 3 Suction Valve
Parts Used in CO 2 ServiceLoc Part No. Qty Description3 316.21631 3 Gasket - No. 3 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
* Select insert based on fluid being pumped
7-10 HT-400 Pump Maintenance and Repair Manual June 1997
3 3/8-in. Fluid-End AssemblyPressure-Packing Subassembly
1 2 3 4 5 7 6
1 2 3 2 4
Short-Stack Packing Subassembly
Chevron Packing
June 1997 Fluid-End Repair Parts 7-11
3 3/8-in. Fluid-End AssemblyPressure-Packing Subassembly
Short-Stack PackingLoc Part No. Qty Description1 316.21503 3 Adapter, Header Ring, 3 3/8-in. x 4 3/8-in.2* 316.21501 3 Ring, Header, 3 3/8-in. x 4 3/8-in., Packing
316.21505 3 Ring, Header, 3 3/8-in., Urethane, CO2 or Xylene Service3 316.21525 1 Packing Set, 3 3/8-in. x 4 3/8-in. x 0.50-in. Stock, 3 Rings, Hard,
Acid4 316.21393 3 Ring, Back Up, Packing, 3 3/8-in. x 4 3/8-in.5 316.21391 3 Carrier, Seal & Packing, 3 3/8-in.6 316.21395 3 Seal, Lube, Packing, WQ, 3 3/8-in. x 3 7/8-in. x 9/16-in.7 8.34040 3 O-Ring, 90D, 4 3/8-in. x 4 1/8-in. x 1/8-in.
Chevron PackingLoc Part No. Qty Description1 316.21002 3 Adapter, Male, 3 3/8-in. Plunger-Packing Gland2** 316.21323 6 Packing Set, 3 3/8-in. x 4 3/8-in. x 0.26-in. Stock, Hard, Standard
Service316.21527 6 Packing Set, 3 3/8-in. x 4 3/8-in. x 0.25-in. Stock, 3 Rings, Hard,
Acid3 316.21003 3 Ring, Lantern, 3 3/8-in., Plunger Packing Gland4 316.21001 3 Adapter, Female, 3 3/8-in., Plunger Packing
* Select Header Ring Based on Fluid Service
** Select Packing Based on Fluid Service
7-12 HT-400 Pump Maintenance and Repair Manual June 1997
3 3/8-in. Fluid-End AssemblyWiper-Gland Subassembly
2
3
1
2 3 4
5
1
No Wiper Elements, Used with Spacer Assembly
Seal, Used without Spacer Assembly
June 1997 Fluid-End Repair Parts 7-13
3 3/8-in. Fluid-End AssemblyWiper-Gland Subassembly
No Wiper Elements, Used with Spacer AssemblyLoc Part No. Qty Description1 316.2137 3 Nut, Packing Adjustment, 3 3/8-in.2 316.2138 3 Sleeve, Wiper Gland, 3 3/8-in.3 70.35817 3 Pin, Groove, 1/2-in. x 1 1/4-in., Type 5
Seal, Used without Spacer AssemblyLoc Part No. Qty Description1 316.2137 3 Nut, Packing Adjustment, 3 3/8-in.2 70.42219 3 Ring, Retaining, RR-437, Internal, Spirolox3 316.11181 3 Seal, Wiper, 3 3/8-in. HT-400-PE-Disogrin4 316.2138 3 Sleeve, Wiper Gland, 3 3/8-in.5 70.35817 3 Pin, Groove, 1/2-in. x 1 1/4-in., Type 5
7-14 HT-400 Pump Maintenance and Repair Manual June 1997
24
1 3
2
4
1 3
2
4
1 3
3 3/8-in. Fluid-End AssemblyPlunger Subassembly
Short Tie-Bolt and Plunger
Modified Tie-Bolt
Standard Tie-Bolt
June 1997 Fluid-End Repair Parts 7-15
3 3/8-in. Fluid-End AssemblyPlunger Subassembly
Short Tie-Bolt and Plunger Used with L-Spacer AssemblyLoc Part No. Qty Description1 316.2131 3 Nose, Plunger, 3 3/8-in.2 316.2130 3 Seal, Plunger Nose, 3 3/8-in.3 316.21026 3 Plunger, Hard Surfaced, L-Spacer4 316.21028 3 Tie Rod, L-Spacer, Plunger
Modified Tie-Bolt Used with M-1 Spacer AssemblyLoc Part No. Qty Description1 316.2131 3 Nose, Plunger, 3 3/8-in.2 316.2130 3 Seal, Plunger Nose, 3 3/8-in.3 316.21291 3 Plunger, Hard Surfaced, M-Spacer4 316.21902 3 Bolt, Tie, 3 3/8-in. and Flush Nose Fluid-End Plunger, 15.90-in.
Standard Tie-Bolt Used without Spacer Assembly and with D-Spacer AssemblyLoc Part No. Qty Description1 316.2131 3 Nose, Plunger, 3 3/8-in.2 316.2130 3 Seal, Plunger Nose, 3 3/8-in.3 316.21291 3 Plunger, Hard Surfaced, 3 3/8-in.4 316.25271 3 Tie Rod Plunger, Shortened
7-16 HT-400 Pump Maintenance and Repair Manual June 1997
3 3/8-in. Fluid-End AssemblyRight-Hand Flange Subassembly
Blank Flange
Straight Flange
Ell Flange
June 1997 Fluid-End Repair Parts 7-17
3 3/8-in. Fluid-End AssemblyRight-Hand Flange Subassembly
Blank FlangeLoc Part No. Qty Description1 316.21673 1 Flange, Discharge, Left Outlet, 3 3/8-in.
Short top tie-bolt (316.22481) used with blank flange.2 315.27117 1 Seal, Discharge Passage, 2 1/2-in. OD3 316.23012 2 Stud, Fluid-End to Thin Plate Discharge Flange4 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.5 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Straight FlangeLoc Part No. Qty Description1 316.21013 1 Flange, Straight, Discharge, 20,000 psi
38.07085 1 Seal, Union2 315.27117 1 Seal, Discharge Passage, 2 1/2-in. OD3 316.23013 2 Stud, Discharge Flange4 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.5 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.21676 1 Flange, Discharge Ell, 20,000 psi Weco Thread Right-Hand
38.07085 2 Seal, Union2 315.27117 1 Seal, Discharge Passage, 2 1/2-in. OD3 316.23013 2 Stud, Discharge Flange4 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.5 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
7-18 HT-400 Pump Maintenance and Repair Manual June 1997
3 3/8-in. Fluid-End AssemblyLeft-Hand Flange Subassembly
Blank Flange
Ell Flange
Straight Flange
June 1997 Fluid-End Repair Parts 7-19
3 3/8-in. Fluid-End AssemblyLeft-Hand Flange Subassembly
Blank FlangeLoc Part No. Qty Description1 316.21673 1 Flange, Discharge, Left Outlet, 3 3/8-in.
Short top-tie-bolt (316.22481) used with blank flange.2 315.27117 1 Seal, Discharge Passage, 2 1/2-in. OD3 316.23012 2 Stud, Fluid-End to Thin Plate Discharge Flange4 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.5 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Straight FlangeLoc Part No. Qty Description1 316.21013 1 Flange, Straight, Discharge, 20,000 psi
38.07085 1 Seal, Union2 315.27117 1 Seal, Discharge Passage, 2 1/2-in. OD3 316.23013 2 Stud, Discharge Flange4 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.5 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.21677 1 Flange, Discharge Ell, 20,000 psi Weco Thread, Left-Hand
38.07085 2 Seal, Union2 315.27117 1 Seal, Discharge Passage, 2 1/2-in. OD3 316.23013 2 Stud, Discharge Flange4 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.5 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
7-20 HT-400 Pump Maintenance and Repair Manual June 1997
3 3/8-in. Fluid-End AssemblyFluid-End Section Subassembly
Protective Cylinder-Head Covers
67
Short Top Tie-Bolt
6 7 8 9
1011 12
13
21 20
18
14
17
16
15
Long Top Tie-Bolt
FLUID END ASSY.HT-400
PART NO.SIZE
1
23
19
4
5
June 1997 Fluid-End Repair Parts 7-21
3 3/8-in. Fluid-End AssemblyFluid-End Section Subassembly
Long Top Tie-Bolt, Used with Blank FlangeLoc Part No. Qty Description1 316.27927 1 Tag, Part Number, Fluid-End2 316.16428 1 Guard, Lube Line3 70.15871 2 Clamp, Hose, 1-in., 1 1/2-in., Murray, Aero Seal4 316.25501 2 Nut, Top-Tie-Bolt, RC30-24, W/Tapered Threads5 316.27488 1 Bolt, Top-Tie, 3 Discharge Flange, 6-in.6 316.2102 3 Retainer-Cover, 3 3/8-in.7 316.2107 3 Cover, Cylinder Head, 3 3/8-in.8 316.21052 3 Gasket, No. 3 Discharge Valve & Cylinder Head Cover, 3 3/8-in.9 316.21051 3 Ring-Spacer, No. 3 Discharge Valve and Cylinder Head Cover,
3 3/8-in.10 316.21951 3 Fluid-End Section, Machined W/Tapered Valve
Tapered Seat Bores, do not use tapered adapter.11 315.27117 4 Seal, Discharge Passage, 2 1/2-in. OD12 316.2145 2 Spacer, Inner Discharge Passage Seal13 70.13839 8 Cap Plug, Plastic, 3/4-in. Plug, Clover14 70.32760 2 Nut, Elastic Stop, 3/4-in. 16NF15 316.23011 1 Bolt, Bottom Tie, Discharge Flange, 5 3/4-in.16 8.34001 3 O-Ring, 6-in. x 6 1/2-in. x 1/4-in.17 70.43999 12 Screw, Hex Cap, 5/8-in. 11NC x 1 1/4-in., PL Spec 70.43919,
Standard Service18 300.434 Stud, 7/8-in. 9NC x 4 3/4-in.
2 Four-point mounting0 Three-point mounting
19 316.22493 2 Washer, Hardened, 2.31-in. OD x 1.43-in. ID, F/Top-Tie-Bolt20 316.21981 3 Sleeve, Fluid-End, HT-400, 3 3/8-in.21 8.34038 3 O-Ring, 90D, 4 1/8-in. x 3 7/8-in. x 1/8-in.
Short Top Tie-Bolt, Used with Blank FlangeLoc Part No. Qty Description5 316.22481 1 Bolt, Top-Tie, 30-in. Long, 4340 Rolled Thread
Protective Cylinder-Head Covers, Options to Loc 6 and 7Loc Part No. Qty Description6 316.22606 3 Retainer, Protective, Cylinder Head Cover, 4-in.7 316.22605 3 Cover, Protective, Cylinder Head, 4-in.
Parts Used in CO 2 ServiceLoc Part No. Qty Description8 316.21631 3 Gasket - No. 3 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service16 8.33992 3 O-Ring, 5 3/8-in. x 4 7/8-in. x 1/4-in.17 70.84177 12 Screw, Hex Cap, 5/8-in. 11NC x 1 3/4-in., ASTM320-L7
7-22 HT-400 Pump Maintenance and Repair Manual June 1997
3 3/8-in. Fluid-End AssemblySeal Plate Subassembly
1
2
3
4
June 1997 Fluid-End Repair Parts 7-23
3 3/8-in. Fluid-End AssemblySeal Plate Subassembly
Seal Plate SubassemblyLoc Part No. Qty Description1 316.2144 3 Seal, 3 3/8-in.2 70.43205 4 Screw, RH Cap, 5/16-in. 18NC x 3/4-in., Hex Socket3 316.21441 1 Plate, 3 3/8-in.4 316.11702 2 Rib, Power-End/Fluid-End Seal
All parts are for use with a non-spacer assembly only.
7-24 HT-400 Pump Maintenance and Repair Manual June 1997
3 3/8-in. Fluid-End AssemblyPlunger Lubricator Subassembly
Oil Line Used with Mechanically Driven Lubricator
6
1 2 3 2 4 5
8 6 8 6 5 4 9
8
7
5
Oil Line Used with Pneumatically Driven Lubricator
Inlet Manifold
Globe Valve
Packing GlandsCheckValve
Outlet Manifold
40
37
31
41
38
4439
Ref.
35
C
39 44
41
June 1997 Fluid-End Repair Parts 7-25
3 3/8-in. Fluid-End AssemblyPlunger Lubricator Subassembly
Oil Line, Used with Pneumatically Driven LubricatorLoc Part No. Qty Description1 2.32 1 Valve, Globe, Crane, 1/4-in., 200 lb, Brass2 30.05002 2 Nipple, XH, 1/4-in. x AT, SMLS, A1063 2.52622 1 Valve, Circle Seal, 2259B, 1/4-in., 250WP4 24.2001 2 Reducer, Black Mall, 1/4-in. x 1/8-in., Standard5 30.01002 8 Nipple, Standard, BW, 1/8-in. x AT-A120 Material6 23.1 3 Tee, Black Mall, 1/8-in., 150 lb7 1.131 3 Valve, Check, Mansfield and Green, Type 1SS-A8 315.22217 5 Line, Oil, Plunger Lubricator9 160.65 1 Valve, Safety, Wagner
Recirculating Plunger Lube, Used with Mechanically Driven LubricatorLoc Part No. Qty Description31 316.21951 3 Fluid-End Section35 1.131 3 Valve, Check, 1/8-in.37 2.32 1 Valve, Globe, 1/4-in., Crane38 30.05002 1 Nipple, X H, 1/4-in. x AT39 316.21900 2 Manifold, Plunger Lube40 160.65 1 Valve, Safety, 1/4-in., Brass41 317.54006 6 Hose Assembly44 70.26665 2 Adapter, Hose, 2024-4-6S
7-26 HT-400 Pump Maintenance and Repair Manual June 1997
4-in. Fluid-End AssemblyDischarge Valve Subassembly with Two-Piece Packing Nut
3
2
1
4
5
5a
11
10
9
8
7
6
5
5a
June 1997 Fluid-End Repair Parts 7-27
4-in. Fluid-End AssemblyDischarge Valve Subassembly with Two-Piece Packing Nut
Discharge Valve Subassembly with Two-Piece Packing NutLoc Part No. Qty Description1 316.2202 3 Retainer, Cover, Mach, 4-in.2 316.23091 3 Cover, Short, Discharge, No. 4 Double, Guided Valve3 316.22052 3 Gasket, No. 4 Discharge Valve and Cylinder Head Cover, 4 1/2-in.4 316.22051 3 Ring, Spacer, No. 4 Discharge Valve and Cylinder Head Cover,
4 1/2-in.5 316.22005 6 Liner, for Two-Piece Bushing, No. 4 Valve Guide, Brass5a* 316.22004 6 Insert, for Two-Piece Bushing, No. 4 Valve Guide, NBR.
Standard Service316.22061 6 Insert, for Two-Piece Bushing, No. 4 Valve Guide, Viton,
Severe Chemical Service6 316.2108 3 Spring, Valve, 36 lb/in.7 316.21007 3 Valve, Frac, 3 3/8-in.8* 316.21006 3 Insert, Polyurethane, No. 3 Frac Valve, Standard Service
316.21048 3 Insert, Polyurethane, No. 3 Frac Valve, Acid/Frac Service316.21154 3 Insert, Buna N, No. 3 Frac Valve, Oil Service316.21155 3 Insert, Valve, No. 3 Frac, Aflas, Severe Chemical Service
9 316.21008 3 Seat, Valve, Tapered, No. 3 Frac10 8.34037 3 O-Ring, 90D, 4-in. x 3 3/4-in. x 1/8-in.11 316.21096 3 Retainer, Guide Bushing, 3 3/8-in. x 1/8-in.
Parts Used in CO 2 ServiceLoc Part No. Qty Description3 316.23631 3 Gasket - No. 4 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
* Select insert based on fluid service
7-28 HT-400 Pump Maintenance and Repair Manual June 1997
4-in. Fluid-End AssemblySuction Valve Subassembly with Two-Piece Packing Nut
5
5a
11
10
9
8
7
6
5
1515
16
5a
13
14
June 1997 Fluid-End Repair Parts 7-29
4-in. Fluid-End AssemblySuction Valve Subassembly with Two-Piece Packing Nut
Suction Valve Subassembly with Two-Piece Packing NutLoc Part No. Qty Description5 316.22005 6 Liner, for Two-Piece Bushing, No. 4 Valve Guide5a* 316.22004 6 Insert, for Two-Piece Bushing, No. 4 Valve Guide
Standard Service316.22061 6 Insert, for Two-Piece Bushing, No. 4 Valve Guide, Viton
Severe Chemical Service6 316.2108 3 Spring, Valve, 36 lb/in.7 316.21007 3 Valve, No. 3 Frac, 3/8-in.8* 316.21006 3 Insert, Polyurethane, No. 3 Frac Valve, Standard Service
316.21048 3 Insert, Valve, No. 3 Frac, Urethane, Acid/Frac Service316.21154 3 Insert, Valve, No. 3 Frac, Buna N, Oil/Hot H2O Service316.21155 3 Insert, Valve, No. 3 Frac, Aflas, Severe Chemical Service
9 316.21008 3 Seat, Valve, Tapered, No. 3 Frac Valve10 8.34037 3 O-Ring, 90D, 4-in. x 3 3/4-in. x 1/8-in.11 316.21096 3 Retainer, Guide Bushing, 3 3/8-in. x 1/8-in.13 70.35717 6 Pin, Cotter, 1/8-in. x 1 1/2-in., Stainless14 316.2125 3 Spring, Lock, No. 3 Suction Stop15 316.25233 6 Boot, Suction Stop, No. 3, No. 4 , & No. 5 Valve16 316.21242 3 Retainer, Stop and Spring, No. 3 Suction Valve
* Select insert based on fluid service
7-30 HT-400 Pump Maintenance and Repair Manual June 1997
4-in. Fluid-End AssemblyPressure-Packing Subassembly with Two-Piece Packing Nut
Chevron Packing
1 2 3 4 5 7 6
1 2 3 2 4
Short-Stack Subassembly
June 1997 Fluid-End Repair Parts 7-31
4-in. Fluid-End AssemblyPressure-Packing Subassembly With Two-Piece Packing Nut
Short-Stack PackingLoc Part No. Qty Description1 316.22503 3 Adapter, Header, 4-in. x 5-in. Packing2* 316.22501 3 Ring, Header, 4-in. x 5-in. Packing
316.22505 3 Ring, Header, 4-in., Urethane, CO2 or Xylene Service3 316.22525 1 Packing Set, 4-in. x 5-in. x 1/2-in. Stock, 3 Rings, Hard,
Acid Service3** 316.22532 1 Packing Set, 4-in. x 5-in. x 1/2-in. Stock HT, 3 Rings, Soft, Mild
Acid/Cement4 316.22393 3 Ring, Backup, Packing, 4-in. x 5-in.5 316.22396 3 Carrier, Seal and Packing, 4-in.6 316.22395 3 Seal, Lube, Packing, WQ, 4-in. x 4 1/2-in. x 9/16-in.7 8.34045 3 O-Ring, 90D, 5-in. x 4 3/4-in. x 1/8-in., 568-248
Chevron PackingLoc Part No. Qty Description1 316.23003 3 Adapter, Male 4-in. x 5-in. Plunger Packing Gland2*** 316.27825 6 Packing Set, 4-in. x 5-in. x 1/4 Stock, 3 Rings, Hard,
Standard Service316.22527 6 Packing Set, 4-in. x 5-in. x 1/4-in. Stock, 3 Rings, Hard,
Acid Service316.27823 6 Packing Set, 4-in. x 5-in. x 1/4-in. Stock, 3 Rings, Soft,
Standard Service3 316.27803 3 Ring, Lantern, 4-in., Pony Rod4 316.27804 3 Adapter, Female, 4-in., Pony Rod
* Select header ring based on fluid service
**Optional
*** Select packing based on fluid service
7-32 HT-400 Pump Maintenance and Repair Manual June 1997
2 3 4
5
1
2
3
1
4-in. Fluid-End AssemblyWiper Gland Subassembly with Two-Piece Packing Nut
No Wiper Elements, Used with Spacer Assembly
Seal, Used without Spacer Assembly
June 1997 Fluid-End Repair Parts 7-33
4-in. Fluid-End AssemblyWiper Gland Subassembly with Two-Piece Packing Nut
No Wiper Elements, Used with Spacer AssemblyLoc Part No. Qty Description1 316.22987 3 Nut, Packing Adjustment, True 4-in. Fluid-End2 316.2238 3 Sleeve, Wiper Gland, 4-in.3 70.35817 3 Pin, Groove, 1/2-in. x 1 1/4-in., Type 5, SAE 6150, RC 50-55
Seal, Used without Spacer AssemblyLoc Part No. Qty Description1 316.22987 3 Nut, Packing Adjustment, True 4-in.2 70.42214 3 Ring, Retaining, PR-550, Int, Spirolox3 316.11182 3 Seal, Wiper, 4-in. HT-400 PE, Disogrin4 316.2238 3 Sleeve, Wiper Gland, 4-in.5 70.35817 3 Pin, Groove, 1/2-in. x 1 1/4-in., Type 5, SAE 6150, RC 50-55
7-34 HT-400 Pump Maintenance and Repair Manual June 1997
2
4
1 3
24
1 3
2
4
1 3
4-in. Fluid-End AssemblyPlunger Subassembly with Two-Piece Packing Nut
Short Tie-Bolt and Plunger
Modified Tie-Bolt
Standard Tie-Bolt
June 1997 Fluid-End Repair Parts 7-35
4-in. Fluid-End AssemblyPlunger Subassembly with Two-Piece Packing Nut
Short Tie-Bolt and Plunger, Used with L-SpacerLoc Part No. Qty Description1 316.2231 3 Nose, Plunger, Machined2 316.2230 3 Seal Assembly, Plunger Nose3 316.22294 3 Plunger, Hard Surfaced, L-Spacer4 316.21028 3 Tie Rod, L-Spacer, Plunger
Modified Tie-Bolt, Used with M-1 and D-Spacer (316.1401) AssemblyLoc Part No. Qty Description1 316.2231 3 Nose, Plunger, Machined2 316.2230 3 Seal Assembly, Plunger Nose3 316.22291 3 Plunger, Hard Surfaced, 4-in.4 316.14042 3 Bolt, Tie, Fluid-End Plunger W/M-1 Spacer
Standard Tie-Bolt, Used with D-Spacer Assembly (316.1401) OnlyLoc Part No. Qty Description1 316.2231 3 Nose, Plunger, Machined2 316.2230 3 Seal Assembly, Plunger Nose3 316.22291 3 Plunger, Hard Surfaced, 4-in.4 316.2527 3 Tie Rod, Plunger, Non Recessed, 17 1/4-in. Long
7-36 HT-400 Pump Maintenance and Repair Manual June 1997
1
2
3
4
4-in. Fluid-End AssemblyRight-Hand Flange Assembly with Two-Piece Packing Nut
Blank Flange
Straight Flange
Ell Flange
1
2
3 4
1
2
3 4
June 1997 Fluid-End Repair Parts 7-37
4-in. Fluid-End AssemblyRight-Hand Flange Assembly with Two-Piece Packing Nut
Blank FlangeLoc Part No. Qty Description1 316.22980 1 Flange, Discharge, F/Outlet, 2 1/2-in. Thick
Use Standard Top Tie-Bolt (316.27488) with this blank flange.2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Straight FlangeLoc Part No. Qty Description1 316.27482 1 Flange, Discharge, 3 Outboard, 6-in.
38.11954 1 Seal, Union, 3-in. 15022 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.23019 1 Flange, Discharge, Right-Hand, 3 Outlet
38.0947 1 Seal, Union, 2-in. 150238.11954 1 Seal, Union, 3-in. 1502
2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
7-38 HT-400 Pump Maintenance and Repair Manual June 1997
4-in. Fluid AssemblyLeft-Hand Flange Assembly with Two-Piece Packing Nut
Blank Flange
Straight Flange
Ell Flange
1
2
34
1
2
3
4
1
2
34
June 1997 Fluid-End Repair Parts 7-39
4-in.Fluid AssemblyLeft-Hand Flange Assembly with Two-Piece Packing Nut
Blank FlangeLoc Part No. Qty Description1 316.22980 1 Flange, Discharge, Front Outlet, 2 1/2-in. Thick
Use standard top-tie-bolt (316.27488) with this blank flange.2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Straight FlangeLoc Part No. Qty Description1 316.27482 1 Flange, Discharge, 3 Outboard, 6-in.
38.11954 1 Seal, Union, 3-in. 15022 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.23017 1 Flange, Discharge, Left-Hand, 3-in. Outlet
38.0947 1 Seal, Union, 2-in. 150238.11954 1 Seal, Union, 3-in. 150
2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 315.11183 2 Washer, Flat, Worm Housing, HD, 1-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
7-40 HT-400 Pump Maintenance and Repair Manual June 1997
FLUID END ASSY.HT-400
PART NO.SIZE
1
23
19
14
45
4-in. Fluid-End AssemblyFluid-End Section Subassembly with Two-Piece Packing Nut and Three Top
Tie-Bolts
Protective Cylinder-Head Covers
67
6 7 8 9
1011 12
21 20
1817
16
June 1997 Fluid-End Repair Parts 7-41
4-in. Fluid-End AssemblyFluid-End Section Subassembly with Two-Piece Packing Nut and Three Top Tie-
Bolts
Loc Part No. Qty Description1 316.27927 1 Tag, Part Number, Fluid-End2 316.16428 1 Guard, Lube Line3 70.15871 2 Clamp, Hose, 1-in. - 1 1/2-in., Murray, Aero Seal4 316.25501 2 Nut, Top-Tie-Bolt, RC30-24, W/Tapered Threads5 316.27488 1 Bolt, Top-Tie, 3 Discharge Flange, 6-in.6 316.2102 3 Retainer, Cover, 3 3/8-in.7 316.2107 3 Cover, Cylinder Head, 3 3/8-in.8 316.21052 3 Gasket, No. 3 Discharge Valve and Cylinder Head Cover, 3 3/8-in.9 316.21051 3 Ring, Spacer, No. 3 Discharge Valve and Cylinder Head Cover,
3 3/8-in.10 316.22982 3 Fluid-End Section, Machined 4-in., Bored Front Packing Sleeve
Has tapered seat bores. Does not use tapered adapter.11 316.2547 4 Seal, Discharge Passage, 3 3/8-in. OD12 316.2545 2 Spacer, Inner Discharge Passage Seal, 5 3/4-in.14 316.27489 2 Bolt, Tie, HT-400, 1-in. Dia., For Three Top-Tie-Bolt16 8.34001 3 O-Ring, 6-in. x 6 1/2-in. x 1/4-in.17 70.43999 12 Screw, Hex Cap, 5/8-in. 11NC x 1 1/4-in., PL Spec 70.4391918 300.434 Stud, 7/8-in. 9NC x 4 3/4-in.
2 Four-point mounting0 Three-point mounting
19 316.22493 2 Washer, Hardened, 2.31-in. OD x 1.43-in. ID, F/Top-Tie-Bolt20 316.22981 3 Sleeve, Fluid-End21 8.34043 3 O-Ring, 90D, 4 3/4-in. x 4 1/2-in. x 1/8-in.
Protective Cylinder-Head Covers, Options to Loc 6 and 7Loc Part No. Qty Description6 316.22606 3 Retainer, Protective Cylinder Head Cover, 4-in.7 316.22605 3 Cover, Protective, Cylinder Head, 4-in.
Parts Used in CO 2 serviceLoc Part No. Qty Description8 316.21631 3 Gasket - No. 3 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service16 8.33992 3 O-Ring, 5-in. x 4 7/8-in. x 1/4-in.17 70.84177 12 Screw, Hex Cap, 5/8-in. 11NC x 1 3/4-in., ASTM 320-L7
CO2 Service
7-42 HT-400 Pump Maintenance and Repair Manual June 1997
4-in. Fluid-End AssemblySeal Plate Subassembly with Two-Piece Packing Nut
Seal Plate, Used with Spacer Assembly
1
2
3
4
Seal Plate, Used without Spacer Assembly
1
June 1997 Fluid-End Repair Parts 7-43
4-in. Fluid-End AssemblySeal Plate Subassembly with Two-Piece Packing Nut
Seal Plate, No Spacer AssemblyLoc Part No. Qty Description1 316.2244 3 Seal, Power End, 4-in.2 70.43213 4 Screw, RH Cap, 5/16-in. 18NC x 1-in., Hex Socket3 316.11701 1 Plate, Seal, Power-End/Fluid-End, 1/2-in. Thick
If old 1/4-in. plates are used, two plates are required.4 316.11702 2 Rib, Power-End/Fluid-End Seal
Seal Plate, Used with Spacer AssemblyLoc Part No. Qty Description1 316.11706 Plate, Power-End/Fluid-End Seal
1 D-Spacer Assembly0 M-1 or L-Spacer Assembly
7-44 HT-400 Pump Maintenance and Repair Manual June 1997
4-in. Fluid-End AssemblyPlunger Lubricator Subassembly with Two-Piece Packing Nut
Oil Line, Used with Mechanically Driven Lubricator
6
1 2 3 2 4 5
8 6 8 6 5 4 9
8
7
5
Oil Line, Used with Pneumatically Driven Lubricator
Inlet Manifold
Globe Valve
Packing GlandsCheckValve
Outlet Manifold
40
37
31
41
38
4439
Ref.
35
C
39 44
41
June 1997 Fluid-End Repair Parts 7-45
4-in. Fluid-End AssemblyPlunger Lubricator Subassembly with Two-Piece Packing Nut
Oil Line, Used with Pneumatically Driven LubricatorLoc Part No. Qty Description1 2.32 1 Valve, Globe, Crane, 1/4, 200 lb, Brass2 30.05002 2 Nipple, XH, 1/4-in. x AT, SMLS, A1063 2.52622 1 Valve, Circle Seal, 2259B, 1/4-in., 250WP4 24.2001 2 Reducer, Black Mall, 1/4-in. x 1/8-in., Standard5 30.01002 8 Nipple, Standard, BW, 1/8-in. x AT, A120 Material6 23.1 3 Tee, Black Mall, 1/8-in., 150 lb7 1.131 3 Valve, Check, Mansfield and Green, Type 1SS-A8 315.22217 5 Line, Oil, Plunger Lubricator9 160.65 1 Valve, Safety, Wagner
Recirculating Plunger Lube, Used with Mechanically Driven LubricatorLoc Part No. Qty Description31 316.22982 3 Fluid-End Section35 1.131 3 Valve, Check, 1/8-in.37 2.32 1 Valve, Globe, 1/4-in., Crane38 30.05002 1 Nipple, XH, 1/4-in. x AT39 316.21900 2 Manifold, Plunger Lube40 160.65 1 Valve, Safety, 1/4-in., Brass41 317.54006 6 Hose, Assy44 70.26665 2 Adapter, Hose, 2024-4-6S
7-46 HT-400 Pump Maintenance and Repair Manual June 1997
4 1/2-in. Fluid-End AssemblyValve Subassembly
5
5a
Suction
11
10
9
8
7
6
5
15
5a
3
2
1
13
14
4
Discharge5
5a
11
10
9
8
7
6
5
5a
June 1997 Fluid-End Repair Parts 7-47
4 1/2-in. Fluid-End AssemblyValve Subassembly
Frac Valves with Tapered Seat BoresLoc Part No. Qty Description1 316.2202 3 Retainer, Cover, Mach, 4-in.2 316.23091 3 Cover, Short, Disch Valve, Machined, Double Guided, 4-in. and
4 1/2-in.3 316.22052 3 Gasket, No. 4 Discharge Valve and Cyl-Head Cover, 4 1/2-in.4 316.22051 3 Ring, Spacer, No. 4 Disch Valve and Cyl-Head Cover, 4 1/2-in.5 316.22005 12 Liner, for Two-Piece Bushing, Valve Guide No. 4, Brass5a* 316.22004 12 Insert, for Two-Piece Bushing, Valve Guide No. 4, NBR,
Standard Service316.22061 12 Insert, for Two-Piece Bushing, No. 4 Valve Guide, Viton,
Severe Chemical Service6** 316.2308 6 Spring, Valve, 25 lb/in, Stainless, 4-in. and 4 1/2-in.7 316.22048 6 Valve, Frac No. 4 Frac8* 316.22049 6 Insert, Polyurethane, No. 4 Frac Valve, standard service
316.22055 6 Insert, Buna N Rubber, No. 4 Frac Valve, Oil Service316.22046 6 Insert, Polyurethane, No. 4 Frac Valve, Acid/Frac Service316.22058 6 Insert, Aflas, No. 4 Frac Valve, Severe Chemical Service
9 316.22047 6 Seat, Valve, Tapered No. 4 Frac10 8.34041 6 O, Ring, 90D, 4 1/2-in. x 4 1/4-in. x 1/8-in.11 316.23953 6 Retainer, Guide Bushing, No.4 Frac Valve, L/Tapered Ad13 316.22252 3 Spring, Lock, No. 4 Suction Stop14 316.25233 6 Boot, Suction Stop, No. 3, No. 4, & No. 5 Valve15 316.22242 3 Retainer, Stop and Spring, No. 4 Suction Valve
Parts Used in CO 2 ServiceLoc Part No. Qty Description3 316.23631 3 Gasket - No. 4 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
* Select inserts based on fluid service
** May be substituted for Loc 6316.23082 3 Spring, Valve, 8.83 lb/in., Stainless
7-48 HT-400 Pump Maintenance and Repair Manual June 1997
4 1/2-in. Fluid-End AssemblyValve Subassembly
June 1997 Fluid-End Repair Parts 7-49
4 1/2-in. Fluid-End AssemblyValve Subassembly
(Continued)
Frac Valves with Straight Seat BoresLoc Part No. Qty Description1 316.2202 3 Retainer, Cover, Mach, 4-in.2 316.23091 3 Cover, Short Disch Valve, Machined, Double Guided, 4-in. and
4 1/2-in.3 316.22052 3 Gasket, No. 4 Discharge Valve and Cylinder-Head Cover, 4 1/2-in.4 316.22051 3 Ring, Spacer, No. 4 Disch Valve and Cylinder-Head Cover,
4 1/2-in.5 316.22005 12 Liner, Two-Piece Bushing, Valve Guide No. 4, Brass5a* 316.22004 12 Insert, Two-Piece Bushing, Valve Guide No. 4, NBR
316.22061 12 Insert, Two-Piece bushing, Valve Guide No. 4, Viton6** 316.2308 6 Spring, Valve, 25 lb/in., Stainless, 4-in. and 4 1/2-in.7 316.22048 6 Valve, Frac No. 4 Frac8* 316.22049 6 Insert, Polyurethane, No. 4 Frac Valve, Standard Service
316.22055 6 Insert, Buna N Rubber, No. 4 Frac Valve, Oil Service316.22046 6 Insert, Polyurethane, No. 4 Frac Valve, Acid/Frac Service316.22058 6 Insert, Aflas, No. 4 Frac Valve, Severe Chemical Service
9 316.22047 6 Seat, Valve, Tapered No. 4 Frac10 8.34041 6 O-Ring, 90D, 4 1/2-in. x 4 1/4-in. x 1/8-in.11 316.22045 6 Adapter, Tapered, No. 4 Valve Seat12 8.33813 6 O-Ring, 90D, 4 11/16-in. x 4 1/2-in. x 3/32-in.13 316.22221 6 Retainer, Guide Bushing Machined15 316.22252 3 Spring, Lock, No. 4 Suction Stop16 316.25233 6 Boot, Suction Stop, No. 3, No. 4, & No. 5 Valve17 316.22242 3 Retainer, Stop and Spring, No. 4 Suction Valve
Parts Used in CO 2 ServiceLoc Part No. Qty Description3 316.23631 3 Gasket - No. 4 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
* Select inserts based on fluid service
** May be substituted for Loc 6316.23082 3 Spring, Valve, 8.83 lb/in., Stainless
7-50 HT-400 Pump Maintenance and Repair Manual June 1997
4 1/2-in. Fluid-End AssemblyPressure-Packing Subassembly
Chevron Packing
1 2 3 4 5 7 6
1 2 3 2 4
Short-Stack Subassembly
June 1997 Fluid-End Repair Parts 7-51
4 1/2-in. Fluid-End AssemblyPressure-Packing Subassembly
Short-Stack PackingLoc Part No. Qty Description1 316.23503 3 Adapter, Header Ring, 4 1/2 in. x 5 1/2-in.2* 316.23501 3 Ring, Header, 4 1/2-in. x 5 1/2-in. Packing
316.23505 3 Ring, Header, 4 1/2-in., Urethane, CO2 or Xylene Service3 316.23525 1 Packing Set, 4 1/2-in. x 5 1/2-in. x 1/2-in. Stock, 3 Rings,
Acid Service3** 316.23532 1 Packing Set, 4 1/2-in. x 5 1/2-in. x 1/2-in. Stock HT, 3 Rings, Soft,
Mild Acid/Cement4 316.23393 3 Ring, Backup, Packing, 4 1/2-in.5 316.23391 3 Carrier, Seal and Packing, 4 1/2-in.6 316.23395 3 Seal, Lube Packing, WQ, 4 1/2-in. x 5-in. x 9/16-in.7 8.34049 3 O-Ring, 90D, 5 1/2-in. x 5 1/4-in. x 1/8-in., 568-252
Chevron PackingLoc Part No. Qty Description1 316.23001 3 Adapter, Male, 4 1/2-in. Plunger Packing Gland, External
Clearance2*** 316.23323 6 Packing Set, 4 1/2-in. x 5 1/2-in. x 0.26-in. Stock Height, 3 Rings,
Hard, Standard Service316.23713 6 Packing Set, 4 1/2-in. x 5 1/2-in. x 0.26-in. Stock, 3 Rings,
Standard Service316.23527 6 Packing Set, 4 1/2-in. x 5 1/2-in. x 1/4-in. Stock, 3 Rings,
Acid Service3 315.2307 3 Spacer, Packing Lubrication, 4 1/2-in.4 316.2336 3 Bushing, Female Adapter, Plunger Packing, 4 1/2-in.
* Select header ring based on fluid service
**Optional
***Select packing based on fluid service
7-52 HT-400 Pump Maintenance and Repair Manual June 1997
4 1/2-in. Fluid-End AssemblyWiper Gland Subassembly
Seal, Used without Spacer Assembly
2 3 4
5
1
2
3
1
No Wiper Elements, Used with Spacer Assembly
June 1997 Fluid-End Repair Parts 7-53
4 1/2-in. Fluid-End AssemblyWiper Gland Subassembly
No Wiper Elements, Used with Spacer AssemblyLoc Part No. Qty Description1 316.2337 3 Nut, Packing Adjustment, 4 1/2-in.2 316.2238 3 Sleeve, Wiper Gland, 4-in.3 70.35817 3 Pin Groove, 1/2-in. x 1 1/4-in., Type 5
Seal, Used without Spacer AssemblyLoc Part No. Qty Description1 316.2337 3 Nut, Packing Adjustment, 4 1/2-in.2 70.42214 3 Ring, Retaining, RR-550, Int, Spirolox3 316.11183 3 Seal, Wiper, 4 1/2-in., HT-400 PE, Disogrin4 316.2238 3 Sleeve, Wiper Gland, 4-in.5 70.35817 3 Pin, Groove, 1/2-in. x 1 1/4-in., Type 5
7-54 HT-400 Pump Maintenance and Repair Manual June 1997
2
4
1 3
2
4
1 3
2
4
1 3
4 1/2-in. Fluid-End AssemblyPlunger Subassembly
Short Tie-Bolt and Plunger
Modified Tie-Bolt
Standard Tie-Bolt
June 1997 Fluid-End Repair Parts 7-55
4 1/2-in. Fluid-End AssemblyPlunger Subassembly
Short Tie-Bolt and Plunger, Used with L-Spacer AssemblyLoc Part No. Qty Description1 316.2331 3 Nose, Plunger, Machined, 4 1/2-in.2 316.2330 3 Seal Assembly, Plunger Nose, 4 1/2-in.3 316.23085 3 Plunger, Hard Surfaced, L-Spacer, 4 1/2-in.4 316.21028 3 Tie Rod, L-Spacer, Plunger
Modified Tie-Bolt, Used with M-1 Spacer AssemblyLoc Part No. Qty Description1 316.2331 3 Nose, Plunger, Machined, 4 1/2-in.2 316.2330 3 Seal Assembly, Plunger Nose, 4 1/2-in.3 316.23291 3 Plunger, Hard Surfaced, 4 1/2-in.4 316.14042 3 Bolt, Tie, Fluid-End Plunger W/M-1 Spacer
Standard Tie-Bolt, Used without Spacer AssemblyLoc Part No. Qty Description1 316.2331 3 Nose, Plunger, Machined, 4 1/2-in.2 316.2330 3 Seal Assembly, Plunger Nose, 4 1/2-in.3 316.23291 3 Plunger, Hard Surfaced, 4 1/2-in.4 316.2527 3 Tie Rod, Plunger, Non-Recessed, 17 3/4-in. Long
7-56 HT-400 Pump Maintenance and Repair Manual June 1997
4 1/2-in. Fluid-End AssemblyRight-Hand Flange Subassembly
Blank Flange
Straight Flange
Ell Flange
1
2
3 4
1
2
34
1
2
3 4
June 1997 Fluid-End Repair Parts 7-57
4 1/2-in. Fluid-End AssemblyRight-Hand Flange Subassembly
Blank FlangeLoc Part No. Qty Description1 316.22980 1 Flange, Discharge, Left Outlet, 4 1/2-in.2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Fluid-End to Discharge Flange4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Straight FlangeLoc Part No. Qty Description1 316.27482 1 Flange, Discharge, 3 Outboard, 6-in.
38.11954 1 Seal, Union, 3-in. 15022 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.23019 1 Flange, Discharge, Right-Hand, 3 Outlet
38.0947 1 Seal, Union, 2-in. 150238.11954 1 Seal, Union, 3-in. 1502
2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
7-58 HT-400 Pump Maintenance and Repair Manual June 1997
4 1/2-in. Fluid-End AssemblyLeft-Hand Flange Subassembly
Blank Flange
Straight Flange
Ell Flange
1
2
34
1
2
34
1
2
34
June 1997 Fluid-End Repair Parts 7-59
4 1/2-in. Fluid-End AssemblyLeft-Hand Flange Subassembly
Blank FlangeLoc Part No. Qty Description1 316.22980 1 Flange, Discharge, L/Outlet, 4 1/2-in.2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Fluid-End to Discharge Flange4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Straight FlangeLoc Part No. Qty Description1 316.27482 1 Flange, Discharge, 3 Outboard, 6-in.
38.11954 1 Seal, Union. 3-in. 15022 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.23017 1 Flange, Discharge, Left-Hand, 3 Outlet
38.0947 1 Seal, Union, 2-in. 150238.11954 1 Seal, Union, 3-in. 1502
2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
7-60 HT-400 Pump Maintenance and Repair Manual June 1997
4 1/2-in. Fluid-End AssemblyFluid-End Section Subassembly
Protective Cylinder-Head Covers
67
Short Top Tie-Bolt
6 7 8 9
1011 12
13
21 20
18
14
17
16
15
Long Top Tie-Bolt
FLUID END ASSY.HT-400
PART NO.SIZE
1
23
19
4
5
June 1997 Fluid-End Repair Parts 7-61
4 1/2-in. Fluid-End AssemblyFluid-End Section Subassembly
Long Top Tie-Bolt, Used without Blank FlangeLoc Part No. Qty Description1 316.27927 1 Tag, Part Number, Fluid-End2 316.16428 1 Guard, Lube Line3 70.15871 2 Clamp, Hose, 1 in. x 1 1/2-in., Murray, Aero Seal4 316.25501 2 Nut, Top-Tie-Bolt, RC30, 24, W/Tapered Threads5 316.27488 1 Bolt, Top-Tie, 3 Discharge Flange, 6-in.6 316.2202 3 Retainer, Cover, Mach, 4-in.7 316.2207 3 Cover, Cylinder Head, 4-in. and 4 1/2-in.8 316.22052 3 Gasket, No. 4 Discharge Valve and Cylinder Head Cover, 4-in.
and 4 1/2-in.9 316.22051 3 Ring, Spacer, No. 4 Discharge Valve and Cylinder Head Cover,
4 1/2-in.10 316.23951 3 Fluid-End Section, Machined 4-in. and 4 1/2-in. Tapered Valve
Has tapered seat bores. Does not use tapered adapter.11 316.2547 4 Seal, Discharge Passage, 3 3/8-in. OD12 316.2545 2 Spacer, Inner Discharge Passage Seal, 5 3/4-in.13 70.13839 8 Cap Plug, Plastic, 3/4-in. Plug, Clover14 70.32760 2 Nut, Elastic Stop, 3/4-in. 16NF15 316.23011 1 Bolt, Bottom Top, Discharge Flange, 5 3/4-in.16 8.34001 3 O-Ring, 6-in. x 6 1/2-in. x 1/4-in.17 70.43999 12 Screw, Hex Cap, 5/8-in. 11NC x 1 1/4-in., PL Spec 70.4391918 300.434 Stud, 7/8-in. 9NC x 4 3/4-in.
2 Four-point mounting0 Three-point mounting
19 316.22493 2 Washer, Hardened, 2.31 OD x 1.43 ID, F/Top-Tie-Bolt20 316.23981 3 Sleeve, Fluid-End, HT-400, 4 1/2-in21 8.34047 3 O, Ring, 90D, 5 1/4-in. x 5-in. x 1/8-in.
Short Top Tie-Bolt, Used with a Blank Flange, Option to Loc 5Loc Part No. Qty Description5 316.22481 1 Bolt, Tie Top, 30-in.
Protective Cylinder-Head Covers, Options to Loc 6 and 7Loc Part No. Qty Description6 316.23639 3 Retainer, Protective Cylinder Head Cover, 4 1/2-in.7 316.23638 3 Cover, Protective, Cylinder Head, 4 1/2-in.
Parts Used in CO 2 ServiceLoc Part No. Qty Description16 8.33992 3 O-Ring, 5 3/8-in. x 4 7/8-in. x 1/4-in.17 70.84177 12 Screw, Hex Cap, 5/8 in. 11NC x 1 3/4-in., ASTM 320-L78 316.23631 3 Gasket - No. 4 Cover
7-62 HT-400 Pump Maintenance and Repair Manual June 1997
4 1/2-in. Fluid-End AssemblySeal Plate Subassembly
Seal Plate, Used with Spacer Assembly
1
2
3
4
Seal Plate, Used without Spacer Assembly
1
June 1997 Fluid-End Repair Parts 7-63
4 1/2-in. Fluid-End AssemblySeal Plate Subassembly
Seal Plate, Used without Spacer AssemblyLoc Part No. Qty Description1 316.2244 3 Seal, Power End, 4-in.2 70.43213 4 Screw, Right-Hand Cap, 5/16-in. 18NC x 1-in., Hex Socket3 316.11701 1 Plate, Seal, Power-End/Fluid-End, 1/2-in. Thick
If old 1/4-in. plates are used, two plates are required.4 316.11702 2 Rib, Power-End/Fluid-End Seal
Seal Plate, Used with Spacer AssemblyLoc Part No. Qty Description1 316.11706 Plate, Power-End/Fluid-End Seal
1 D-Spacer Assembly0 M-1 or L-Spacer Assemblys
7-64 HT-400 Pump Maintenance and Repair Manual June 1997
4 1/2-in. Fluid-End AssemblyPlunger Lubricator Subassembly
Oil Line, Used with Mechanically Driven Lubricator
6
1 2 3 2 4 5
8 6 8 6 5 4 9
8
7
5
Oil Line, Used with Pneumatically Driven Lubricator
Inlet Manifold
Globe Valve
Packing GlandsCheckValve
Outlet Manifold
40
37
31
41
38
4439
Ref.
35
C
39 44
41
June 1997 Fluid-End Repair Parts 7-65
4 1/2-in. Fluid-End AssemblyPlunger Lubricator Subassembly
Oil Line, Used with Pneumatically Driven LubricatorLoc Part No. Qty Description1 2.32 1 Valve, Globe, Crane, 1/4-in., 200 lb, Brass2 30.05002 2 Nipple, XH, 1/4-in. x AT, SMLS, A1063 2.52622 1 Valve, Circle Seal, 2259B, 1/4-in., 250WP4 24.2001 2 Reducer, Black Mall, 1/4-in. x 1/8 in., Standard5 30.01002 8 Nipple, Standard, BW, 1/8-in. x AT, A120 Material6 23.1 3 Tee, Black Mall, 1/8-in., 150 lb7 1.131 3 Valve, Check, Mansfield and Green, Type 1SS-A8 315.22217 5 Line, Oil, Plunger Lubricator9 160.65 1 Valve, Safety, Wagner
Recirculating Plunger Lube, Used with Mechanically Driven LubricatorLoc Part No. Qty Description31 316.23951 3 Fluid-End Section35 1.131 3 Valve, Check, 1/8-in.37 2.32 1 Valve, Globe, 1/4-in., Crane38 30.05002 1 Nipple, XH, 1/4-in. x AT39 316.21900 2 Manifold, Plunger Lube40 160.65 1 Valve, Safety, 1/4-in., Brass41 317.54006 6 Hose, Assy44 70.26665 2 Adapter, Hose, 2024-4-6S
7-66 HT-400 Pump Maintenance and Repair Manual June 1997
5-in. Fluid-End AssemblyValve Subassemby
5
5a
Suction
11
10
9
8
7
6
5
15
5a
3
2
1
13
14
4
Discharge5
5a
11
10
9
8
7
6
5
5a
June 1997 Fluid-End Repair Parts 7-67
5-in. Fluid-End AssemblyValve Subassemby
Frac Valves with Tapered Seat BoresLoc Part No. Qty Description1 316.2502 3 Retainer, Valve Pot Cove2 316.24044 3 Cover Assembly, Short Discharge, No. 5 DG Valve3 316.25052 3 Gasket, No. 5 Discharge Valve and Cylinder Head Cover, 5-in.4 316.25051 3 Ring, Spacer, No. 5 Discharge Valve and Cylinder Head Cover,
5-in.5 316.22007 12 Liner, For Two-Piece Bushing, Valve Guide No. 5, Brass5a* 316.22006 12 Insert, For Two-Piece Bushing, Valve Guide No. 5, NBR,
Standard Service316.22062 12 Insert, For Two Piece Bushing, No. 5 Valve Guide, Viton,
Severe Chemical Service6 316.27259 6 Spring, Valve, Conical, Stainless, 50 lb/in.7 316.24027 6 Valve, No. 5 Frac, 5 and 6-in.8* 316.24037 6 Insert, Polyurethane, No. 5 Frac Valve, Standard Service
316.24026 6 Insert, Polyurethane, No. 5 Frac Valve, Acid/Frac Service316.24045 6 Insert, Buna N, No. 5 Frac Valve, Oil Service316.24047 6 Insert, Aflas, No. 5 Frac Valve, Severe Chemical Service
9 316.24024 6 Seat, Valve, Tapered, No. 5 Frac10 8.34045 6 O-Ring, 90D, 5-in. x 4 3/4-in. x 1/8-in.11 316.24043 6 Retainer, Guide Bushing, No. 5 Frac Valve, L/Tapered Ad13 316.22253 3 Spring, Lock, No. 5 Suction Stop14 316.25233 6 Boot, Suction Stop, No. 3, No. 4, & No. 5 Valve15 316.27266 3 Retainer, Stop and Spring, No. 5 Suction Valve
Parts Used in CO 2 ServiceLoc Part No. Qty Description3 316.24631 3 Gasket - No. 5 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
* Select insert based on fluid service
7-68 HT-400 Pump Maintenance and Repair Manual June 1997
5-in. Fluid-End AssemblyValve Subassembly
June 1997 Fluid-End Repair Parts 7-69
5-in. Fluid-End AssemblyValve Subassembly
(Continued)
Frac Valves with Straight Seat BoresLoc Part No. Qty Description1 316.2502 3 Retainer, Valve Pot Cover2 316.24044 3 Cover Assembly, Short Discharge, No. 5 DG Valve3 316.25052 3 Gasket, No. 5 Discharge Valve and Cylinder Head Cover, 5-in.4 316.25051 3 Ring, Spacer, No. 5 Discharge Valve and Cylinder Head Cover,
5-in.5 316.22007 12 Liner, For Two-Piece Bushing, Valve Guide No. 5, Brass5a* 316.22006 12 Insert, For Two-Piece Bushing, Valve Guide No. 5, NBR
316.22062 12 Insert, Two-Piece Bushing, Valve Guide No. 5, Viton6 316.27259 6 Spring, Valve, Conical, Stainless, 50 lb/in.7 316.24027 6 Valve, No. 5 Frac, 5 and 6-in.8* 316.24037 6 Insert, Polyurethane, No. 5 Frac Valve, Standard Service
316.24026 6 Insert, Polyurethane, No. 5 Frac Valve, Acid/Frac Service316.24045 6 Insert, Buna N, No. 5 Frac Valve, Oil Service316.24047 6 Insert, Aflas, No. 5 Frac Valve, Severe Chemical Service
9 316.24024 6 Seat, Valve, Tapered, No. 5 Frac10 8.34045 6 O-Ring, 90D, 5-in., 3/4 -in. x 1/8-in.11 316.25235 6 Adapter, Tapered Valve Seat, No. 5 Frac Valve12 8.33814 6 O-Ring, 90D, 5 3/16-in. x 5-in. x 3/32-in.13 316.24025 6 Retainer, Bushing, Guide15 316.22253 3 Spring, Lock, No. 5 Suction Stop, No. 5 Valve16 316.25233 6 Boot, Suction Stop, No. 5 Suction Valve17 316.27266 3 Retainer, Stop and Spring, No. 5 Suction Valve
Parts Used in CO 2 ServiceLoc Part No. Qty Description3 316.24631 3 Gasket - No. 5 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
* Select insert based on fluid service
7-70 HT-400 Pump Maintenance and Repair Manual June 1997
5-in. Fluid-End AssemblyPressure-Packing Subassembly
Chevron Packing
1 2 3 4 5 7 6
1 2 3 2 4
Short-Stack Subassembly
June 1997 Fluid-End Repair Parts 7-71
5-in. Fluid-End AssemblyPressure-Packing Subassembly
Short-Stack PackingLoc Part No. Qty Description1 316.24503 3 Adapter, Header Ring, 5-in. x 6-in.2* 316.24501 3 Ring, Header, 5-in. x 6-in. Packing
316.24505 3 Ring, Header, 5-in., Urethane, CO2 or Xylene service3 316.24525 1 Packing Set, 5-in. x 6-in. x 1/2 Stock, 3 Rings, Acid Service4 339.01527 3 Ring, Backup, Packing, 5-in.5 316.24391 3 Carrier, Seal and Packing, 5-in.6 316.24395 3 Seal, Lube Packing, WQ, 5-in. x 5 1/2-in. x 9/16-in.7 8.34053 3 O-Ring, 90D, 6-in. x 5 3/4-in. x 1/8-in., 568-256
Chevron PackingLoc Part No. Qty Description1 316.24001 3 Adapter, Male, 5 in. Plunger Packing Gland2** 316.24323 6 Packing Set, 5-in. x 6-in. x 0.24-in. Stock Ht, Hard,
Standard Service316.24324 6 Packing Set, 5-in. x 6-in. x 0.24-in. Stock, 3 Rings, Soft,
Standard Service316.24527 6 Packing Set, 5-in. x 6-in. x 1/4-in. Stock, 3 Rings,
Acid Service3 316.2435 3 Ring, Lantern, Plunger Packing Gland, 5-in.4 316.2436 3 Bushing, Female Adapter, Plunger Packing Gland, 5-in.
* Select header ring based on fluid service
** Select packing based on fluid service
7-72 HT-400 Pump Maintenance and Repair Manual June 1997
5-in. Fluid-End AssemblyWiper Gland Subassembly
Seal, Used without Spacer Assembly
2 3 4
5
1
2
3
1
No Wiper Elements, Used with Spacer Assembly
June 1997 Fluid-End Repair Parts 7-73
5-in. Fluid-End AssemblyWiper Gland Subassembly
No Wiper Elements, Used with Spacer AssemblyLoc Part No. Qty Description1 316.2437 3 Nut, Packing Adjustment, 5-in.2 316.2438 3 Sleeve, Wiper Gland, 5-in.3 70.35785 3 Pin Groove, 3/8-in. x 1 1/4-in., Type 5
Seal, Used without Spacer AssemblyLoc Part No. Qty Description1 316.2437 3 Nut, Packing Adjustment, 5-in.2 70.42237 3 Ring, Retaining, RR-575, Int, Spirolox3 316.11184 3 Seal, Wiper, 5-in., Disogrin4 316.2438 3 Sleeve, Wiper Gland, 5-in.5 70.35785 3 Pin, Groove, 3/8-in. x 1 1/4-in., Type 5
7-74 HT-400 Pump Maintenance and Repair Manual June 1997
2
4
1 3
2
4
1 3
2
4
1 3
5-in. Fluid-End AssemblyPlunger Subassembly
Short Tie-Bolt and Plunger
Modified Tie-Bolt
Standard Tie-Bolt
June 1997 Fluid-End Repair Parts 7-75
5-in. Fluid-End AssemblyPlunger Subassembly
Short Tie-Bolt and Plunger, Used with L-Spacer AssemblyLoc Part No. Qty Description1 316.2331 3 Nose, Plunger, Machined, 4 1/2-in.2 316.2330 3 Seal Assembly, Plunger Nose, 4 1/2-in.3 316.24296 3 Plunger, Hard Surfaced, L-Spacer, 5-in.4 316.25165 3 Tie Rod, L-Spacer, Flush Nose Plunger, 6-in.
Modified Tie-Bolt, Used with M-1 Spacer AssemblyLoc Part No. Qty Description1 316.2331 3 Nose, Plunger, Machined, 4 1/2-in.2 316.2330 3 Seal Assembly, Plunger Nose, 4 1/2-in.3 316.24294 3 Plunger, Hard Surfaced, F/Recessed Nose, 5-in.4 316.21902 3 Bolt, Tie, 3 3/8-in. and Flush Nose FE Plunger, 15.90-in.
Flush Nose And Standard Tie-Bolt, Used without Spacer Assembly and Used withD-Spacer AssemblyLoc Part No. Qty Description1 316.2331 3 Nose, Plunger, Machined, 4 1/2-in.2 316.2330 3 Seal Assembly, Plunger Nose, 4 1/2-in.3 316.24294 3 Plunger, Hard Surfaced, F/Recessed Nose4 316.25271 3 Tie Rod, Plunger, Short, F/Recessed Nose
7-76 HT-400 Pump Maintenance and Repair Manual June 1997
5-in. Fluid-End AssemblyRight-Hand Flange Assembly
Blank Flange
Straight Flange
Ell Flange
1
2
3 4
1
2
34
1
2
3 4
June 1997 Fluid-End Repair Parts 7-77
5-in. Fluid-End AssemblyRight-Hand Flange Assembly
Blank FlangeLoc Part No. Qty Description1 316.22980 1 Flange, Discharge, L/Outlet, 4 1/2-in.2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Fluid-End to Thin-Plate Discharge Flange4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching
Straight FlangeLoc Part No. Qty Description1 316.27482 1 Flange, Discharge, 3 Outboard, 6-in.
38.11954 1 Seal, Union, 3-in.2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.23019 1 Flange, Discharge, Right-Hand, 3 Outlet
38.0947 1 Seal, Union, 2-in.38.11954 1 Seal, Union, 3-in.
2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
7-78 HT-400 Pump Maintenance and Repair Manual June 1997
5-in. Fluid-End AssemblyLeft-Hand Flange Assembly
Blank Flange
Straight Flange
Ell Flange
1
2
34
1
2
34
1
2
34
June 1997 Fluid-End Repair Parts 7-79
5-in. Fluid-End AssemblyLeft-Hand Flange Assembly
Blank FlangeLoc Part No. Qty Description1 316.22980 1 Flange, Discharge, L/Outlet, 4 1/2-in.2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Fluid-End to Thin-Plate Discharge Flange4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching
Straight FlangeLoc Part No. Qty Description1 316.27482 1 Flange, Discharge, 3 Outboard, 6-in.
38.11954 1 Seal, Union, 3-in. 15022 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.23017 1 Flange, Discharge, Left-Hand, 3 Outlet
38.0947 1 Seal, Union, 2-in. 150238.11954 1 Seal, Union, 3-in. 1502
2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
7-80 HT-400 Pump Maintenance and Repair Manual June 1997
5-in. Fluid AssemblyFluid-End Section Subassembly
Protective Cylinder-Head Covers
67
Short Top Tie-Bolt
6 7 8 9
1011 12
13
21 20
18
14
17
16
15
Long Top Tie-Bolt
FLUID END ASSY.HT-400
PART NO.SIZE
1
23
19
4
5
June 1997 Fluid-End Repair Parts 7-81
5-in. Fluid AssemblyFluid-End Section Subassembly
Long Top Tie-Bolt, Used without Blank FlangeLoc Part No. Qty Description1 316.27927 1 Tag, Part Number, Fluid-End2 316.16428 1 Guard, Lube Line3 70.15871 2 Clamp, Hose, 1-in. - 1 1/2-in., Murray, Aero Seal4 316.25501 2 Nut, Top-Tie-Bolt, RC30-24, W/Tapered Threads5 316.27488 1 Bolt, Top Tie, 3 Discharge Flange, 6-in.6 316.2502 3 Retainer, Valve Pot Cover, Mach, 5 3/4-in.7 316.2407 3 Cover Assembly, Cylinder Head, 5-in.8 316.25052 3 Gasket, No. 5 Discharge Valve and Cylinder Head Cover, 5-in.9 316.25051 3 Ring, Spacer, No. 5 Discharge Valve and Cylinder Head Cover,
5-in.10 316.24951 3 Fluid-End Section, W/Tapered Valve Seat Bores
Has Tapered Seat Bores, Does Not Use Tapered Adapter.11 316.2547 4 Seal, Discharge Passage, 3 3/8-in. OD12 316.2545 2 Spacer, Inner Discharge Passage Seal, 5 3/4-in.13 70.13839 8 Cap Plug, Plastic, 3/4-in. Plug, Clover14 70.32760 2 Nut, Elastic Stop, 3/4-in. 16NF15 316.23011 1 Bolt, Bottom Tie, Discharge Flange, 5 3/4-in.16 8.34001 3 O-Ring, 6-in. x 6 1/2-in. x 1/4-in.17 70.43999 12 Screw, Hex Cap, 5/8-in. 11NC x 1 1/4-in., PL Spec 70.4391918 300.434 Stud, 7/8-in. 9NC x 4 3/4-in.
2 Four-point mounting0 Three-point mounting
19 316.22493 2 Washer, Hardened, 2.31-in. OD x 1.43-in. ID, F/Top-Tie-Bolt20 316.24981 3 Sleeve, Fluid-End, 5-in.21 8.34051 3 O-Ring, 90D, 5 3/4-in. x 5 1/2-in. x 1/8-in.
Short Top Tie-Bolt, Used with a Blank Flange, Option to Loc 5Loc Part No. Qty Description5 316.22481 1 Bolt, Top Tie, 30-in.
Protective Cylinder-Head Covers, Options to Loc 6 and 7Loc Part No. Qty Description6 316.24615 3 Retainer, Protective Cylinder Head Cover, 5-in.7 316.24614 3 Cover, Protective Cylinder Head, 5-in.
Parts Used in CO 2 ServiceLoc Part No. Qty Description8 316.24631 3 Gasket - No. 5 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
16 8.33992 3 O-Ring, 5 3/8-in. x 4 7/8-in. x 1/4-in.17 70.84177 12 Screw, Hex Cap, 5/8-in. 11NC x 1 3/4-in., ASTM 320, L7
7-82 HT-400 Pump Maintenance and Repair Manual June 1997
5-in. Fluid-End AssemblySeal Plate Subassembly
1
2
3
4
June 1997 Fluid-End Repair Parts 7-83
5-in. Fluid-End AssemblySeal Plate Subassembly
Seal Plate SubassemblyLoc Part No. Qty Description1 316.2444 3 Seal, Buna N, Oil Resistant2 70.43205 4 Screw, RH Cap, 5/16-in. 18NC x 3/4-in., Hex Socket3 316.11706 1 Plate, Seal, Power-End/Fluid-End, 6-in.4 316.11702 2 Rib, Power-End/Fluid-End Seal
All parts listed are only used with a spacer assembly.
7-84 HT-400 Pump Maintenance and Repair Manual June 1997
5-in. Fluid-End AssemblyPlunger Lubricator Subassembly
Oil Line, Used with Mechanically Driven Lubricator
6
1 2 3 2 4 5
8 6 8 6 5 4 9
8
7
5
Oil Line, Used with Pneumatically Driven Lubricator
Inlet Manifold
Globe Valve
Packing GlandsCheckValve
Outlet Manifold
40
37
31
41
38
4439
Ref.
35
C
39 44
41
June 1997 Fluid-End Repair Parts 7-85
Oil Line, Used with Pneumatically Driven LubricatorLoc Part No. Qty Description1 2.32 1 Valve, Globe, Crane, 1/4-in., 200 lb, Brass2 30.05002 2 Nipple, XH, 1/4-in. x AT, SMLS, A1063 2.52622 1 Valve, Circle Seal, 2259B, 1/4-in., 250WP4 24.2001 2 Reducer, Black Mall, 1/4-in. x 1/8-in., Standard5 30.01002 8 Nipple, Standard, BW, 1/8-in. x AT, A120 Material6 23.1 3 Tee, Black Mall, 1/8-in., 150 lb7 1.131 3 Valve, Check, Mansfield and Green, Type 1SS-A8 315.22217 5 Line, Oil, Plunger Lubricator9 160.65 1 Valve, Safety, Wagner
Recirculating Plunger Lube, Used with Mechanically Driven LubricatorLoc Part No. Qty Description31 316.24951 3 Fluid-End Section35 1.131 3 Valve, Check, 1/8-in.37 2.32 1 Valve, Globe, 1/4-in., Crane38 30.05002 1 Nipple, XH, 1/4-in. x AT39 316.21900 2 Manifold, Plunger Lube40 160.65 1 Valve, Safety, 1/4-in., Brass41 317.54006 6 Hose, Assy44 70.26665 2 Adapter, Hose, 2024-4-6S
5-in. Fluid-End AssemblyPlunger Lubricator Subassembly
7-86 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid-End AssemblyValve Subassembly
5
5a
Suction
11
10
9
8
7
6
5
15
5a
3
2
1
13
14
4
Discharge5
5a
11
10
9
8
7
6
5
5a
June 1997 Fluid-End Repair Parts 7-87
Tapered Seat BoresLoc Part No. Qty Description1 316.2502 3 Retainer, Valve Pot Cover2 316.24044 3 Cover Assembly, Short Discharge, No. 5 DG Valve3 316.25052 3 Gasket, No. 5 Discharge Valve and Cylinder Head Cover, 5-in.4 316.25051 3 Ring, Spacer, No. 5 Discharge Valve and Cylinder Head Cover,
5-in.5 316.22007 12 Liner, For Two-Piece Bushing, Valve Guide No. 5, Brass5a* 316.22006 12 Insert, For Two-Piece Bushing, Valve Guide No. 5, NBR,
Standard Service316.22062 12 Insert, For Two Piece Bushing, No. 5 Valve Guide, Viton,
Severe Chemical Service6 316.27259 6 Spring, Valve, Conical, Stainless, 50 lb/in.7 316.24027 6 Valve, No. 5 Frac, 5 and 6-in.8* 316.24037 6 Insert, Polyurethane, No. 5 Frac Valve, Standard Service
316.24026 6 Insert, Polyurethane, No. 5 Frac Valve, Acid/Frac Service316.24045 6 Insert, Buna N, No. 5 Frac Valve, Oil Service316.24047 6 Insert, Aflas, No. 5 Frac Valve, Severe Chemical Service
9 316.24024 6 Seat, Valve, Tapered, No. 5 Frac10 8.34045 6 O-Ring, 90D, 5-in. x 4 3/4-in. x 1/8-in.11 316.24043 6 Retainer, Guide Bushing, No. 5 Frac Valve, L/Tapered Ad13 316.22253 3 Spring, Lock, No. 5 Suction Stop14 316.25233 6 Boot, Suction Stop, No. 3, No. 4, & No. 5 Valve15 316.27266 3 Retainer, Stop and Spring, No. 5 Suction Valve
Parts Used in CO 2 ServiceLoc Part No. Qty Description3 316.24631 3 Gasket - No. 5 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
* Select insert based on fluid service
6-in. Fluid-End AssemblyValve Subassembly
7-88 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid AssemblyValve Subassembly
June 1997 Fluid-End Repair Parts 7-89
6-in. Fluid AssemblyValve Subassembly
(Continued)
Straight Seat BoresLoc Part No. Qty Description1 316.2502 3 Retainer, Valve Pot Cover2 316.24044 3 Cover Assembly, Short Discharge, No. 5 DG Valve3 316.25052 3 Gasket, No. 5 Discharge Valve and Cylinder Head Cover, 5-in.4 316.25051 3 Ring, Spacer, No. 5 Discharge Valve and Cylinder Head Cover,
5-in.5 316.22007 12 Liner, Two-Piece Bushing, Valve Guide No. 5, Brass5a* 316.22006 12 Insert, Two-Piece Bushing, Valve Guide No. 5, NBR
316.22062 12 Insert, Two-Piece Bushing, Valve Guide No. 5, Viton6 316.27259 6 Spring, Valve, Conical, Stainless, 50 lb/in.7 316.24027 6 Valve, No. 5 Frac, 5 and 6-in.8* 316.24037 6 Insert, Polyurethane, No. 5 Frac Valve, Standard Service
316.24026 6 Insert, Polyurethane, No. 5 Frac Valve, Acid/Frac Service316.24045 6 Insert, Buna N, No. 5 Frac Valve, Oil Service316.24047 6 Insert, Aflas, No. 5 Frac Valve, Severe Chemical Service
9 316.24024 6 Seat, Valve, Tapered, No. 5 Frac10 8.34045 6 O-Ring, 90D, 5-in. x 4 3/4-in. x 1/8-in.11 316.25235 6 Adapter, Tapered Valve Seat, No. 5 Frac Valve12 8.33814 6 O-Ring, 90D, 5 3/16-in. x 5-in. x 3/32-in.13 316.24025 6 Retainer, Bushing, Guide15 316.22253 3 Spring, Lock, No. 5 Suction Stop16 316.25233 6 Boot, Suction Stop, No. 3, No. 4, & No. 5 Valve17 316.27266 3 Retainer, Stop and Spring, No. 5 Suction Valve
Parts Used in CO 2 ServiceLoc Part No. Qty Description3 316.24631 3 Gasket - No. 5 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
* Select insert based on fluid service
7-90 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid-End AssemblyPressure-Packing Subassembly
Chevron Packing
1 2 3 4 5 7 6
1 2 3 2 4
Short-Stack Subassembly
June 1997 Fluid-End Repair Parts 7-91
Short-Stack PackingLoc Part No. Qty Description1 316.27503 3 Adapter, Header Ring, 6-in. x 7-in.2* 316.27501 3 Ring, Header, 6-in. x 7-in. Packing
316.27505 Ring, Header, 6-in., Urethane, CO2 or Xylene Service3 316.27525 1 Packing Set, 6-in. x 7-in. x 1/2-in. Stock, 3 Rings, Acid Service4 339.00036 3 Ring, Backup, Packing, 6-in.5 316.27391 3 Carrier, Seal and Packing, 6-in.6 316.27395 3 Seal, Lube Packing, WQ, 6-in. x 6 1/2-in. x 9/16-in.7 8.34058 3 O-Ring, 90D, 7-in. x 6 3/4-in. x 1/8-in., 568-261
Chevron PackingLoc Part No. Qty Description1 316.27322 3 Adapter, Male, 6-in. Packing2** 316.27323 6 Packing Set, 6-in. x 7-in. x 1/4-in. Stock, Hard,
Standard Service316.27324 6 Packing Set, 6-in. x 7-in. x 1/4-in. Stock, 3 Rings, Soft,
Standard Service316.27527 6 Packing Set, 6-in. x 7-in. x 1/4-in. Stock, 3 Rings, Hard,
Acid Service3 316.2735 3 Ring, Lantern, Plunger Packing Gland, 6-in.4 316.2736 3 Adapter, Female, 6-in. Packing
* Select header ring based on fluid service
** Select packing based on fluid service
6-in. Fluid-End AssemblyPressure-Packing Subassembly
7-92 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid-End AssemblyWiper Gland Subassembly
Seal, Used with Spacer Assembly
2
3
1
2 3 4
5
1
No Wiper Elements, Used with Spacer Assembly
June 1997 Fluid-End Repair Parts 7-93
No Wiper Elements, Used with Spacer AssemblyLoc Part No. Qty Description1 316.2737 3 Nut, Packing Adjustment, 6-in.2 316.2738 3 Sleeve, Wiper Gland, 6-in.3 70.35785 3 Pin Groove, 3/8-in. x 1 1/4-in., Type 5
Seal, Used without Spacer AssemblyLoc Part No. Qty Description1 316.2737 3 Nut, Packing Adjustment, 6-in.2 70.42225 3 Ring, Retaining, RR-675, Int, Spirolox3 316.11185 3 Seal, Wiper, 6-in., Disogrin4 316.2738 3 Sleeve, Wiper Gland, 6-in.5 70.35785 3 Pin, Groove, 3/8-in. x 1 1/4-in., Type 5
6-in. Fluid-End AssemblyWiper Gland Subassembly
7-94 HT-400 Pump Maintenance and Repair Manual June 1997
2
4
1 3
2
4
1 3
6-in. Fluid-End AssemblyPlunger Subassembly
Modified Tie-Bolt
Short Tie-Bolt and Plunger
Standard Tie-Bolt
June 1997 Fluid-End Repair Parts 7-95
Short Tie-Bolt and Plunger, Used with L-Spacer AssemblyLoc Part No. Qty Description1 316.2331 3 Nose, Plunger, Machined, 4 1/2-in.2 316.2330 3 Seal Assembly, Plunger Nose, 4 1/2-in.3 316.25162 3 Plunger, Hard Surfaced, L-Spacer, 6-in.4 316.25165 3 Tie Rod, L-Spacer, Plunger, 6-in.
Flush Nose and Modified Tie-Bolt, Used with M-1 Spacer AssemblyLoc Part No. Qty Description1 316.2331 3 Nose, Plunger, HT-400, 4 1/2-in.2 316.2330 3 Seal, Plunger Nose Assembly, HT-400, 4 1/2-in.3 316.27295 3 Plunger, HT-400, 6-in., Hard Surfaced4 316.21902 3 Tie Rod, Plunger, Fluid-End, 3 3/8-in.
Flush Nose and Standard Tie-Bolt, Used without Spacer Assembly and withD-Spacer AssemblyLoc Part No. Qty Description1 316.2331 3 Nose, Plunger, Machined, 4 1/2-in.2 316.2330 3 Seal Assembly, Plunger Nose, 4 1/2-in.3 316.27295 3 Plunger, Flush Nose, W/Upset End, HD Surface4 316.25271 3 Tie Rod, Plunger, Shortened
6-in. Fluid-End AssemblyPlunger Subassembly
7-96 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid-End AssemblyRight-Hand Flange Assembly
Blank Flange
Straight Flange
Ell Flange
1
2
3 4
1
2
34
1
2
3 4
June 1997 Fluid-End Repair Parts 7-97
Blank FlangeLoc Part No. Qty Description1 316.22980 1 Flange, Discharge, L/Outlet, 4 1/2-in.2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Fluid-End to Discharge Flange4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching
Straight FlangeLoc Part No. Qty Description1 316.27482 1 Flange, Discharge, 3 Outboard, 6-in.
38.11954 1 Seal, Union, 3-in. 15022 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.23019 1 Flange, Discharge, Right-Hand, 3 Outlet
38.0947 1 Seal, Union, 2-in. 150238.11954 1 Seal, Union, 3-in. 1502
2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
6-in. Fluid-End AssemblyRight-Hand Flange Assembly
7-98 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid-End AssemblyLeft-Hand Flange Assembly
Blank Flange
Straight Flange
Ell Flange
1
2
34
1
2
34
June 1997 Fluid-End Repair Parts 7-99
6-in. Fluid-End AssemblyLeft-Hand Flange Assembly
Blank FlangeLoc Part No. Qty Description1 316.22980 1 Flange, Discharge, L/Outlet, 4 1/2-in.2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Fluid-End to Discharge Flange4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching
Straight FlangeLoc Part No. Qty Description1 316.27482 1 Flange, Discharge, 3 Outboard, 6-in.
38.11954 1 Seal, Union, 3-in. 15022 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
Ell FlangeLoc Part No. Qty Description1 316.23017 1 Flange, Discharge, Left-Hand, 3 Outlet
38.0947 1 Seal, Union, 2-in. 150238.11954 1 Seal, Union, 3-in. 1502
2 316.2547 1 Seal, Discharge Passage, 3 3/8-in. OD3 316.23013 2 Stud, Discharge Flange, 6-in.4 316.11621 2 Nut, 1-in. 14NF, Internal Wrenching, 1.03-in. Thread Length
7-100 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid-End AssemblyFluid-End Section Subassembly
Protective Cylinder-Head Covers
67
Short Top Tie-Bolt
6 7 8 9
1011 12
13
21 20
18
14
17
16
15
Long Top Tie-Bolt
FLUID END ASSY.HT-400
PART NO.SIZE
1
23
19
4
5
June 1997 Fluid-End Repair Parts 7-101
Long Top Tie-Bolt, Used without Blank FlangeLoc Part No. Qty Description1 316.27927 1 Tag, Part Number, Fluid-End2 316.16428 1 Guard, Lube Line3 70.15871 2 Clamp, Hose, 1-in. - 1 1/2-in., Murray, Aero Seal4 316.25501 2 Nut, Top Tie-Bolt, RC30-24, W/Tapered Threads5 316.27488 1 Bolt, Top Tie, 3 Discharge Flange, 6-in.6 316.2506 3 Retainer, Valve Pot Cover, Mach, 6-in.7 316.2507 3 Cover Assembly, Cylinder Head, 6-in.8 316.25074 3 Gasket, No. 6 Cylinder Head Cover, 6-in.9 316.25073 3 Ring, Spacer, No. 6 Cylinder Head Cover, 6-in.10 316.27951 3 Fluid-End Section, W/Tapered Valve Seat Bores
Has tapered seat bores, does not use tapered adapter.11 316.2547 4 Seal, Discharge Passage, 3 3/8 -in. OD12 316.2545 2 Spacer, Inner Discharge Passage Seal, 5 3/4-in.13 70.13839 8 Cap Plug, Plastic, 3/4-in. Plug14 70.32760 2 Nut, Elastic Stop, 3/4-in. 16NF15 316.23011 1 Bolt, Bottom Tie, Discharge Flange, 5 3/4-in.16 8.34001 3 O-Ring, 6-in. x 6 1/2-in. x 1/4-in.17 70.43999 12 Screw, Hex Cap, 5/8-in. 11NC x 1 1/4-in, PL Spec 70.43919,
Standard Service18 300.434 Stud, 7/8-in. 9NC x 4 3/4-in., T10 Power-End Mount
2 Four-point mounting0 Three-point mounting
19 316.22493 2 Washer, Hardened, 2.31-in. OD x 1.43-in. ID, F/Top-Tie-Bolt20 316.27981 3 Sleeve, Fluid-End, 6-in.21 8.34057 3 O-Ring, 90D, 6-in., 3/4-in. x 6 1/2-in. x 1/8-in.
Short Top Tie-Bolt, Used with a Blank Flange, Option to Loc 5Loc Part No. Qty Description5 316.22481 1 Bolt, Top Tie, 30-in.
Protective Cylinder-Head Covers, Options to Loc 6 and 7Loc Part No. Qty Description6 316.27614 3 Retainer, Protective Cylinder Head Cover, 6-in.7 316.27613 3 Cover, Protective Cylinder Head, 6-in.
Parts Used in CO 2 ServiceLoc Part No. Qty Description8 316.27631 3 Gasket - No. 6 Discharge Valve & Cylinder Head Cover, 3 3/8-in. -
CO2 Service
16 8.33992 3 O-Ring, 5 3/8-in. x 4 7/8-in. x 1/4-in.17 70.84177 12 Screw, Hex Cap, 5/8-in. 11NC x 1 3/4-in., ASTM 320-L7
6-in. Fluid-End AssemblyFluid-End Section Subassembly
7-102 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid-End AssemblySeal Plate Subassembly
Seal Plate, Used with Spacer Assembly
1
2
3
4
Seal Plate, Used without Spacer Assembly
1
June 1997 Fluid-End Repair Parts 7-103
Seal Plate, Used without Spacer AssemblyLoc Part No. Qty Description1 316.2744 3 Seal, Buna N, Oil Resistant, 6-in.2 70.43205 4 Screw, RH Cap, 5/16-in. 18NC x 3/4-in., Hex Socket3 316.11706 1 Plate, Seal, Power-End/Fluid-End, 6-in.4 316.11702 2 Rib, Power-End/Fluid-End Seal
Seal Plate, Used with Spacer AssemblyLoc Part No. Qty Description1 316.11706 Plate, Seal, Power-End/Fluid-End
1 W/D-Spacer Assembly0 W/M-1 or L-Spacer Assembly
6-in. Fluid-End AssemblySeal Plate Subassembly
7-104 HT-400 Pump Maintenance and Repair Manual June 1997
6-in. Fluid-End AssemblyPlunger Lubricator Subassembly
Oil Line, Used with Mechanically Driven Lubricator
6
1 2 3 2 4 5
8 6 8 6 5 4 9
8
7
5
Oil Line, Used with Pneumatically Driven Lubricator
Inlet Manifold
Globe Valve
Packing GlandsCheckValve
Outlet Manifold
40
37
31
41
38
4439
Ref.
35
C
39 44
41
June 1997 Fluid-End Repair Parts 7-105
Oil Line, Used with Pneumatically Driven LubricatorLoc Part No. Qty Description1 2.32 1 Valve, Globe, Crane, 1/4-in., 200 lb, Brass2 30.05002 2 Nipple, XH, 1/4-in. x AT, SMLS, A1063 2.52622 1 Valve, Circle Seal, 2259B, 1/4-in., 250WP4 24.2001 2 Reducer, Black Mall, 1/4-in. x 1/8-in., Standard5 30.01002 8 Nipple, Std, BW, 1/8-in. x AT, A120 Material6 23.1 3 Tee, Black Mall, 1/8-in., 150 lb7 1.131 3 Valve, Check, Mansfield and Green, Type 1SS-A8 315.22217 5 Line, Oil, Plunger Lubricator9 160.65 1 Valve, Safety, Wagner
Recirculating Plunger Lube, Used with Mechanically Driven LubricatorLoc Part No. Qty Description31 316.27951 3 Fluid-End Section35 1.131 3 Valve, Check, 1/8-in.37 2.32 1 Valve, Globe, 1/4-in., Crane38 30.05002 1 Nipple, XH, 1/4-in. x AT39 316.21900 2 Manifold, Plunger Lube40 160.65 1 Valve, Safety, 1/4-in., Brass41 317.54006 6 Hose, Assembly44 70.26665 2 Adapter, Hose, 2024-4-6S
6-in. Fluid-End AssemblyPlunger Lubricator Subassembly
7-106 HT-400 Pump Maintenance and Repair Manual June 1997
Fluid-End AssemblySuction Ball Valve Subassembly
1
2
3
4
5
6
7
8
Suction
June 1997 Fluid-End Repair Parts 7-107
3 3/8-in. Fluid-End AssemblyLoc Part No. Qty Description1 316.21646 3 Stop, Suction, No. 3 Ball Valve3 316.21647 3 Spacer, No. 3 Suction Ball Valve
Used only in 3 3/8-in. Fluid-End Assembly7 316.21645 3 Seat, Drop In, No. 3 Ball Valve8 316.21006 3 Insert, Polyurethane, No. 3 Frac Valve, Standard Service
4-in. Fluid-End AssemblyLoc Part No. Qty Description1 316.21646 3 Stop, Suction, No. 3 Ball Valve7 316.21645 3 Seat, Drop In, No. 3 Ball Valve8 316.21006 3 Insert, Polyurethane, No. 3 Frac Valve, Standard Service
4 1/2-in. Fluid-End AssemblyLoc Part No. Qty Description1 316.22646 3 Stop, Suction, No. 4 Ball Valve7 316.22645 3 Seat, Drop In, No. 4 Ball Valve8 316.22049 3 Insert, Polyurethane, No. 4 Frac Valve, Standard Service
5-in. and 6-in. Fluid-End AssemblyLoc Part No. Qty Description1 316.24646 3 Stop, Suction, No. 5 Ball Valve7 316.24645 3 Seat, Drop In, No. 5 Ball Valve8 316.24037 3 Insert, Polyurethane, No. 5 Frac Valve, Standard Service
Components Common to All SizesLoc Part No. Qty Description2 316.22643 3 Spring, Loading, No. 4 Ball Valve, Spec, Standard Service
316.21642 3 Spring, Loading, Ball Valve, Monel, Acid Service4 316.22644 3 Weldment, Cage, No. 4 Ball Valve, Spec5 70.00427 3 Ball, Steel, 2-in., Chrome Steel, Grade 506 316.22642 3 Insert, Seal, No. 4 Ball Valve, Spec
NOTE—Do not install ball valves for discharge unless running extremely high sand concentra-tions. (See ball valve installation and usage instructions, Chapter 4, Repair and Overhaul Manual,316.13295).
Fluid-End AssemblySuction Ball Valve Subassembly
7-108 HT-400 Pump Maintenance and Repair Manual June 1997
Fluid-End AssemblyDischarge Ball Valve Subassembly
1
2
4
5
6
7
Discharge
3
June 1997 Fluid-End Repair Parts 7-109
3 3/8-in. Fluid-End AssemblyLoc Part No. Qty Description1 316.21641 3 Cover, Discharge, No. 3 Ball Valve6 316.21645 3 Seat, Drop In, No. 3 Ball Valve7 316.21006 3 Insert, Polyurethane, No. 3 Frac Valve, Standard Service
4-in. Fluid-End AssemblyLoc Part No. Qty Description1 316.23641 3 Cover, Discharge, No. 4, 33 Ball Valve6 316.21645 3 Seat, Drop In, No. 3 Ball Valve7 316.21006 3 Insert, Polyurethane, No. 3 Frac Valve, Standard Service
4 1/2-in. Fluid-End AssemblyLoc Part No. Qty Description1 316.22641 3 Cover, Short Discharge, No. 4 Ball Valve6 316.22645 3 Seat, Drop In, No. 4 Ball Valve7 316.22049 3 Insert, Polyurethane, No. 4 Frac Valve, Standard Service
5-in. Fluid-End AssemblyLoc Part No. Qty Description1 316.24641 3 Cover, Discharge, No. 5 Ball Valve6 316.24645 3 Seat, Drop In, No. 5 Ball Valve7 316.24037 3 Insert, Polyurethane, No. 5 Frac Valve, Standard Service
6-in. Fluid-End AssemblyLoc Part No. Qty Description1 316.27641 3 Cover, Discharge, No. 6 Ball Valve6 316.24645 3 Seat, Drop In, No. 5 Ball Valve7 316.24037 3 Insert, Polyurethane, No. 5 Frac Valve, Standard Service
Components Common to All SizesLoc Part No. Qty Description2 316.22643 3 Spring, Loading, No. 4 Ball Valve, Spec, Standard Service
316.21642 3 Spring, Loading, Ball Valve, Monel, Acid Service3 316.22644 3 Weldment, Cage, No. 4 Ball Valve, Spec4 70.00427 3 Ball, Steel, 2-in., Chrome Steel, Grade 505 316.22642 3 Insert, Seal, No. 4 Ball Valve, Spec
NOTE—Do not install ball valves for discharge unless running extremely high sand concentra-tions. (See ball valve installation and usage instructions, Chapter 4, Repair and Overhaul Manual,316.13295).
Fluid-End AssemblyDischarge Ball-Valve Subassembly
7-110 HT-400 Pump Maintenance and Repair Manual June 1997
Fluid-End Assembly Part NumbersAll Fluid-End Assemblies are Supplied with Acid Packing
Part No. Plunger Right Left SpacerSize (in.) Flange Flange Type
316.2103 3.37 Curved Blank L316.2167# 3.37 Blank Curved L316.2192 3.37 Curved Curved L316.2196 3.37 Blank Curved L316.2198 3.37 Straight Blank L
316.2229# 4.00 Curved Blank L316.2291 4.00 Curved Curved L316.2293 4.00 Curved Blank L316.2294 4.00 Blank Curved L316.2295 4.00 Curved Straight L316.2296 4.00 Straight Blank L316.2299# 4.00 Blank Curved L
316.2301# 4.50 Blank Curved L316.2304# 4.50 Curved Blank L316.23736 4.50 Curved Curved L316.23738 4.50 Straight Curved L316.23739 4.50 Curved Straight L316.23746 4.50 Blank Curved L316.23748 4.50 Curved Blank L316.23751 4.50 Straight Straight L316.23753 4.50 Blank Straight L316.2382 4.50 Straight Blank L
316.24032 5.00 Curved Curved L316.24038 5.00 Blank Curved L316.24053 5.00 Curved Blank L316.2496 5.00 Straight Blank L316.2583# 5.00 Blank Curved L
316.2695# 6.00 Blank Curved L316.27235 6.00 Curved Blank L316.27236 6.00 Blank Curved L316.27274 6.00 Curved Curved L316.2762 6.00 Straight Blank L
# Fluid-end assembly is type-certified.
June 1997 Fluid-End Repair Parts 7-111
Fluid-End Parts
StandardType-Certified Part Number
Size (in.) Size (in.) Description Part Number Cross Reference3 3/8 3 3/8 Plunger 316.21675 316.21026C C Plunger Tie-Bolt 316.210283 3/8 3 3/8 Plunger Nose 316.21678 316.21313 3/8 3 3/8 Fluid-End Section 316.21674 316.219513 3 Valve, No. 3 316.22997 316.210073 3/8 3 3/8 Flange, Curved, Left-Hand 316.216773 3/8 3 3/8 Flange, Curved, Right-Hand 316.21676C C Top Tie-Bolt 316.27488C C Nut, Top Tie-Bolt 316.255013 3 Retainer, Curved 316.22995 316.21023 3 Discharge Cover 316.22994 316.21093 3/8 3 3/8 Cylinder Head Cover 316.22993 316.21073 3/8 3 3/8 Sleeve Wiper 316.21672 316.21383 3/8 3 3/8 Packing Nut 316.21671 316.2137
3 3 Stop and Spring Retainer 316.21242C C Bottom Tie-Bolt 316.230113 3 Retainer, Gd Bushing 316.22996 316.21096
4 4 Plunger 316.22989 316.222944 4 Plunger Nose 316.22912 316.22314 4 Fluid-End Section 316.22999 316.22982C* C* Flange, Curved, Left-Hand 316.23017C* C* Flange, Curved, Right-Hand 316.230194 4 1-in. Tie-Bolt 316.274894 4 Discharge Cover 316.22994 316.2109
4 1/2 4 1/2 Retainer, Cylinder Cover 316.23025 316.22024 1/2 4 1/2 Discharge Cover 316.23024 316.230914 1/2 4 1/2 Sleeve Wiper 316.23014 316.22384 1/2 4 1/2 Plunger 316.23031 316.230854 1/2 4 1/2 Fluid-End Section 316.23029 316.239514 1/2 4 1/2 Valve, No. 4 316.23022 316.220484 1/2 4 1/2 Cylinder Cover 316.23015 316.22074 1/2 4 1/2 Packing Nut 316.23027 316.23374 1/2 4 1/2 Stop and Spring Retainer 316.222424 1/2 4 1/2 GB Retainer 316.23026 316.23953
4, 5, 6 4, 5, 6 Plunger Nose 316.23006 316.23314, 5, 6 4, 5, 6 Blank Flange, Thin 316.230184, 5, 6 4, 5, 6 Stud Flange 316.230124, 5, 6 4, 5, 6 Top Tie-Bolt 316.27488
7-112 HT-400 Pump Maintenance and Repair Manual June 1997
Fluid-End Parts(continued)
StandardType-Certified Part Number
Size (in.) Size (in.) Description Part Number Cross Reference5 5 Plunger 316.25831 316.242965 5 Fluid-End Section 316.25832 316.249515 5 Cylinder Cover 316.25837 316.24075 5 Packing Nut 316.25838 316.24375, 6 5, 6 Valve, No. 5 316.25833 316.240275, 6 5, 6 Retainer, GD Bushing 316.25834 316.240435, 6 5, 6 Retainer, Cover 316.25835 316.25025, 6 5, 6 Discharge Cover 316.25836 316.240445, 6 5, 6 Wiper Sleeve 316.25839 316.24385, 6 5, 6 S and S Retainer 316.272666 6 Plunger 316.26955 316.251626 6 Fluid-End Section 316.26954 316.279516 6 Retainer Cover 316.25835 316.25026 6 Cylinder Cover 316.26953 316.25076 6 Wiper Sleeve 316.26952 316.27386 6 Packing Nut 316.26951 316.2737