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H y
d r a u l i c P
u m p s
Webtec Products Limited
Quality Hydraulic Componentsfrom the Webtec Range
Hydraulic
Pumps
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Quality Hydraulic Components from the Webtec Range
CONTENTS
DESCRIPTION PAGE No.
B Series
Gear Pumps, 1 to 10 cc/rev Capacity 1
YB Series
Gear Pump, 2.5 to 12 cc/rev Capacity 9
HCS Series
Gear Pumps, 12 to 32 cc/rev Capacity 13
YC Series
Gear Pumps, 12 to 32 cc/rev Capacity 15
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1
B Series
Gear Pumps1 to 10 cc/revCapacity
An EXTERNAL GEAR PUMP consists basically of adrive gear (rotated by an external source via a shaft)and a meshing driven gear in a housing with an inletand outlet port. Fluid is forced through the pump as itbecomes trapped between the rotating gear teeth andthe housing. Because the output per revolution isbased on the fixed volume displaced by the gears, theflow rate may be varied only by varying the gear speed.
Symbol
Features
G Customer can select from 10 standard
displacements ranging from 1 - 10 cc/rev withpressure to 241 bar and speeds to 3500 rpm.
G Durable construction consisting of heat treated alloy
steel shafts and gears, high density grey iron bodyconstruction.
GDouble lip seals and heavy duty needle bearingsfitted as standard features.
G Straight keyed shafts are standard with tang shafts
available as an option.
G Mechanical, high pressure or viton seals available
as an option.
G Relief and outlet check valves available as an
option.
G Suitable for mining and underground use.
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2
1 Application
No letter indicates pump
2 Displacement Code
Actual Displacement
3 B Series Pump
4 Type of Control1 Fixed Clearance
5 Mounting
E 4 Bolt (1.781 dia, Pilot)F 2 Bolt (2.000 dia, Pilot)
6 Porting
1 1/2” NPTF Side Inlet (Cover) & 3/8” NPTF SideOutlet (Body)
2 1/2” NPTF Side Inlet and Outlet (Both Cover)
7 Shaft Extension
A Tang (.50 dia. x .147 wide x .312 Extension)B .50 dia Straight Shaft with .12 Sq Key, 1.50
Extension
8 Valving
X No Valves1 Relief only2 Relief and Outlet Check
9 Customer Variation
- Standard (Buna-N Seal)1 Outboard Bearing2 Mechanical Seal (300 psi)3 High Pressure Seal (100 psi)
10 Shaft Rotation (Viewed from Shaft End)
R ClockwiseL Counter-Clockwise
11 Design Modification
12 Relief Valve Setting
On all pumps incorporating relief valves, pumpcode must indicate relief valve pressure settingwhich is to be indicated as follows: 01 = 100, 02 =200 etc. These digits represent desired valvesetting multiplied by 1/100. When no specific valvesetting is specified by customer relief will be set at06B thru 30B @ 2000 psi, 37B & 47B @ 1200 psiand 59B @ 750 psi.
CodeIn3 /rev Gear Width(cc/rev) in (mm)
06 .06 (.980) .18 (4.57)
11 .11 (1.80) .31 (7.87)
15 .15 (2.46) .25 (6.35)
22 .22 (3.60) .37 (9.40)
30 .30 (4.91) .50 (12.70)
37 .37 (6.06) .62 (15.75)
47 .47 (7.70) .80 (20.32)
59 .59 (9.66) 1.00 (25.4)
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11 12
Use these squares to pencil in your coding requirements
B Series
Pumps
Typical Code
11 A 1 1 L 1 021 1EB -
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Model A B
06B 3.32” (84.33mm) 2.69” (68.33mm)
11B 3.45” (87.63mm) 2.82” (71.63mm)
15B 3.39” (86.11mm) 2.76” (70.10mm)
22B 3.51” (89.15mm) 2.88” (73.15mm)
30B 3.64” (92.46mm) 3.01” (76.45mm)
37B 3.76” (95.50mm) 3.13” (79.50mm)
47B 3.94” (100.08mm) 3.31” (84.07mm)
59B 4.14” (105.16mm) 3.51” (89.15mm)
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3
Specifications
Max. Pressure:241 bar
Capacity:0.98 to 9.66 cc/rev
Max Speed:3500 rpm
Porting:1/2” NPTF Inlet (Cover) 3/8”NPTF Side Outlet (Body)1/2” NPTF Inlet and Outlet(Both Cover)
Mounting:Universal mounting flange permits either 4 boltor 2 bolt AA with optional adaptor Ring
Shafts:Straight key shafts standard Tang shaftsoptional
Seals:Double lip, temperature and oil resistantstandard
Optional at extra cost; viton mechanical anddouble lip high pressure.
Maximum back pressure all seals 0.7 bar,except for mechanical 21 bar, and high pressurewhich is 7 bar
Relief Valve:Standard models with integral Relief valves willbe set as follows
06B to 30B @ 2000 psi - Code 2037B to 47B @ 1200 psi - Code 1259B @ 750 psi - Code 7.5
44
59.9109.7
3.9
Left Hand Right Hand Bi-Rotational
7.8
3 .
7 1
3 .
7 6
1 2 .
4
1 2 .
3
Tang Shaft
82.5
5 0 .
8
50.8
9.5 Thru’4 Holes
9 4
1
3 .
5
34.8
25.4
A
3.1 B
7.838
1 1 .
7
1 1 .
6
1 2 .
7 0
1 2 .
6 8
Installation DetailsDimensions in millimetres
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4
Typical Performance Curves
‘B’ Series Pumps
130 SSU Hydraulic Oil @ 120°F
00
500 1000 1500 2000 2500 3000 3500
2.5
(1.8)
2.0
(1.4)
1.5
(1.10)
1.0
(.75)
0.5(.4)
3500 241
3000 205
2500 172
2000 138
1500 103
1000 69500 34100 6.9
5.0(3.73)
4.0
(2.98)
3.0(2.2)
2.0
(1.4)
1.0(.75)
00 500 1000 1500 2000 2500 3000 3500
3500 241
3000 205
2500 172
2000 138
1500 103
1000 69500 34
100 6.9
100 6.9
3500 241
00
500 1000 1500 2000 2500 3000 3500
.50(1.9)
1.0
(3.78)
1.5(5.67)
2.0
(7.56)
2.5(9.45)
Pressure (bar)
Pressure (psi)
Input H.P (kW)
Pressure (bar)
Pressure (psi)
USgpm (lpm)
00
500 1000 1500 2000 2500 3000 3500
1.25
(4.73)
1.0(3.78)
.75
(2.8)
.50(1.9)
.25(.9)
100 6.9
3500 241
06B1 - R or L
11B1 - R or L
00
500
1.0
(.75)
2.0
(1.4)
3.0(2.2)
4.0
(2.98)
5.0
(3.73)
0
1.0
(3.78)
2.0
(7.56)
3.0
(11.35)
4.0
(15.13)
5.0(18.92)
1000 1500 2000 2500 3000 3500 0 500 1000 1500 2000 2500 3000 3500
2500 172
2000 138
1500 103
1000 69
500 34
100 6.9
100 69
2500 172
15B1 - R or L
Note: These curves depict maximumworking pressures. Pressures shown inorder code are full-flow relief set pressures.
rpmrpm
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5
Typical Performance Curves
‘B’ Series Pumps
130 SSU Hydraulic Oil @ 120°F
Pressure (bar)
Pressure (psi)
Input H.P (kW)
Pressure (bar)
Pressure (psi)
US gpm (lpm)
00
0
500 1000 1500 2000 2500 3000 3500
00
500 1000 1500 2000 2500 3000 3500
00
500 1000 1500 2000 2500 3000 3500
00
500 1000 1500 2000 2500 3000 3500
00
500 1000 1500 2000 2500 3000 3500
00
500 1000 1500 2000 2500 3000 3500
00
500 1000 1500 2000 2500 3000 35000 500 1000 1500 2000 2500 3000 3500
5.0(3.73)
4.0
(2.98)
3.0(2.2)
2.0
(1.4)
1.0
(.75)
2500 172
2000 138
1500 103
1000 69
500 34
100 6.9
2500 172
100 6.9
5.0
(18.92)
4.0
(15.13)
3.0
(11.35)
2.0
(7.56)
1.0
(3.78)
5.0
(3.73)
4.0
(2.98)
3.0(2.2)
2.0(1.4)
1.0(.75)
1500 103
2000 138
1000 69
500 34
100 6.9
5.0
(18.92)
4.0(15.13)
3.0
(11.35)
2.0(7.56)
1.0(3.78)
100 6.9
2000 138
5.0
(3.73)
4.0(2.98)
3.0
(2.2)
2.0
(1.4)
1.0
(.75)
1500 103
1000 69
500 34
100 6.9
5.0(18.92)
4.0
(15.13)
3.0
(11.35)
2.0
(7.56)
1.0
(3.78)
100 6.9
1500 103
5.0
(3.73)
4.0(2.98)
3.0
(2.2)
2.0
(1.4)
1.0(.75)
5.0(18.92)
4.0
(15.13)
3.0
(11.35)
2.0
(7.56)
1.0(3.78)
100 6.9
1200 83
22B1 - R or L
30B1 - R or L
37B1 - R or L
47B1 - R or L
Note: These curves depict maximumworking pressures Pressures shown in ordercode are full-flow relief set pressures
rpmrpm
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6
Typical Performance Curves
‘B’ Series Pumps
130 SSU Hydraulic Oil @ 120°F
Pressure (bar)
Pressure (psi)
Input H.P (kW)
Pressure (bar)Pressure (psi)US gpm (lpm)
00
500 1000 1500 2000 2500 3000 3500 00
500 1000 1500 2000 2500 3000 3500
10.0(7.45)
8.0(5.97)
6.0(4.48)
4.0(2.98)
2.0
(1.4)
1000 69
500 34
100 6.9
10.0(37.85)
8.0(30.28)
6.0
(22.71)
4.0(15.13)
2.0(7.56)
100 6.9
1000 69
59B1 - R or L
Note: These curves depict maximumworking pressures. Pressures shown inorder code are full-flow relief set pressures.
rpmrpm
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7
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‘B’ Series Pumps as Replacements for ‘LAS’ Series‘B’ Series pumps can be used as replacements for the obsolete ‘LAS’ Series and the following can be usedwith the A45Q1 foot mount.
Coding Displacement
03B1H16RX-R Replaces OLAS-R 03B = 0.03 in3
/Rev OLAS = 0.029 in3
/Rev03B1H16RX-L Replaces OLAS-L 04B = 0.04 in3 /Rev 1LAS = 0.044 in3 /Rev
04B1H16RX-R Replaces 1LAS-R 15B = 0.15 in3 /Rev 3LAS = 0.143 in3 /Rev15B1H15RX-R Replaces 3LAS-R15B1H15RX-L Replaces 3LAS-L
Pump Code Dim ‘A’ Dim ‘B’ Dim ‘C’
03B 77.97mm 61.98mm 1/4” NPTF
04B 73.15mm 57.15mm 1/4” NPTF
15B 76.45mm 60.45mm 3/8” NPTF
Installation DetailsDimensions in millimetres
44 44
9 4
1 3 . 6
50.8 ‘A’
12.7
1 1 . 1
Ø
‘B’
30°
30° 30°
30°
12.7
54 Ø
92
8 9
Tank and pressure Ports ‘C’
53.9 Ø
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8
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200 psi
150 psi
100 psi
50 psi
0 psi
050100150200
.08
.06
.04
.02
0
0.3
0.2
0.1
0
050
100150200
0100
200
200 psi
150 psi
100 psi
50 psi
0 psi
24
20
16
12
.08
.04
0
0.5
0.4
0.3
0.2
0.1
0
200 psi
150 psi
100 psi
50 psi
0 psi
.40
.32
.24
.16
.08
0
2.0
1.6
1.2
0.8
0.4
0
Typical (i.e. not absolute) Performance Curves
500 1000 1500 2000 2400 500 1000 1500 2000 2400
I n p u t ( H o r s e p o w e r )
I n p u t ( H o r s e p o w e r )
I n p u t ( H o r s e p o w e r )
03B Pump
C a p a c i t y ( g p m )
C a p a c i t y ( g p m )
C a p a c i t y ( g p m )
04B Pump
15B Pump
Speed (rpm) Speed (rpm)
*SAE No. 10 Oil @ 100°F
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YB Series
Gear Pump2.5 to 12 cc/revCapacity
An EXTERNAL GEAR PUMP consists basically of adrive gear (rotated by an external source via a shaft)and a meshing driven gear in a housing with an inletand an outlet port. Fluid is forced through the pump asit becomes trapped between the rotating gear teeth andthe housing. Because the output per revolution isbased on the fixed volume displaced by the gears, theflow rate may be varied only by varying the gear speed.
Symbol
Features
G Customer can select from 6 standard displacements
ranging from 2.5 to 12 cc/rev with pressures to 172bar and speeds to 4000 rpm.
G Positive displacement pressure balanced gear type
pumps for use with non-corrosive liquid withlubricating properties.
G Light weight, compact and sturdy construction, isideally suited to machine tool and mobile equipmentcircuits.
G Durable die cast aluminium housing, combination
two bolt/four bolt flange mounting needle bearingsand optional internal relief valve and check valve ondischarge contribute to overall efficiency anddependability.
G Internal relief valve drain eliminates the drain port.
External relief valve drain is available in which caseoil must be returned to tank below the fluid surface.
G Square keyed shafts are standard with tang shafts
available as an option.
9
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Specifications
Maximum Pressure:
138 bar continuous172 bar intermittent
Capacity:2.5-12 cc/rev (see Table 1, ordering codes)
Maximum Speeds:4000 rpm
Porting:side standard (end optional) see Tables 3 & 5,ordering codes for further details
Weight:
0.79 kg to 1.36 kg
Mounting:
Combination 2 bolt/4 bolt
Seals:temperature and dirt resistant double lip shaftseal.
Valves:(optional) - internal check valve available ondischarge for 15 - 29 series only - internally orexternally drained relief valves available on allmodels - see Table 2, ordering codes for furtherdetails
Shafts:
straight key shafts standard; tang shaft optional(see installation details)
Code Description
2 Straight with Square Key Slot.
3 Tang
Code Description
2 Outboard Bearing
3 BSP Ports
Code Description
0 No Relief or Check Valve
5 Relief and Check Valve - Internal Drain 15 - 29YB
6Relief and Check Valve - External Drain
1/4” NPTF 15 - 29 YB
Code Description
1 3/8” NPTF, side, Tank and Press (15 - 29YB)
3 1/2” NPTF, side, Tank 3/8” NPTF side Press (43 - 73YB)
Code Displacement Gear Width
15 2.5 cc/rev 6.4 mm
22 3.6 cc/rev 9.5 mm
29 4.8 cc/rev 12.7 mm
43 7.0 cc/rev 19.1 mm
58 9.5 cc/rev 25.4 mm
73 12.0 cc/rev 31.8 mm
Code Settings
01 7 bar
02 13.8 bar
20 138 bar
ORDERING CODES Typical Code 15 YB AD 0 1 2 2 L 20
Displacement (Table 1)
YB - Pump Series
AD - 2 bolt/4 bolt flange mounting
Valve Description (Table 2)
Porting (Table 3)
Shaft Extension (Table 4)
Customer Variation (Table 5)
L - Anti-clockwise shaft rotation
R - Clockwise shaft rotation (as viewed from shaft end)
Relief Valve setting (Table 6)
Set at 138 bar unless specified
Table 1: Displacement Table 2: Valve Descriptions
Table 3: Porting
Table 4: Shaft Extensions Table 5: Variations Table 6: Relief Valve Settings
Note: These are max. port sizes. Straight thread ports are available
Relief valve cracking pressure adjustable between 0.7 barand 138 bar on 15 - 29YB models and between 13.8 barand 138 bar on 43 - 73 bar.
Maximum stable flow through relief valves - 23 lpm
External drain must be used when relief valve cyclesfrequently or for extended periods
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11
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15YB 22YB 29YB 43YB 54YB 73YB
Dim ‘A’ 82.5 88.9 88.9 95.2 101.6 107.9
15YB
2 0 0 b a
r
1 5 0 b a r
1 0 0 b a r
7 0 bar
35 bar7 bar
0
2.5
5.07.5
5.0
2.5
0
I n p u t ( k W )
I n p u t ( H P ) 7 b
a r
1 5 0 b a
r
10
5
0
1 5 0 b a
r
1 0 0 b a r
7 0 b a r
35 bar
7 bar
1 5 0 b
a r
1 0 0 b a r
7 0 b a r
35 bar
7 bar
5.0
22 YB
29 YB
2.5
0
I n p u t ( k W )
C a p a c i t y ( l p m )
7.5
5.0
2.5
0
I n p u
t ( H P )
7 b a r
1 5 0 b
a r10
5
0
C a p a c
i t y ( l p m )
7.5
5.0
2.5
0
10.0
7.5
5.0
2.5
800 1600 2400 3200 40000
I n p u t ( k W )
Speed (rpm)
800 1600 2400 3200 4000
Speed (rpm)
I n p u t ( H P )
15
10
5
0
C a p a c i t y ( l p m )
7 b a
r
1 5 0 b a
r
Typical Performance Curves
Curves established using hydraulic mineral oil with viscosity of 27.4 centistokes at 49°C
9 6
101.6
50.8
83
‘A’
38.1
1 4 .
3
9 1 .
2
41.1 41.1
10.4 diaThru’ 2 Holes
9.7 dia Thru’4 Holes 7.9
3 .
7
Note: Tang Shaft usable only to1.5HP input continuous at 1800 rpm
7.1 Tang Length
1 3 .
5 4 5 .
3
41.1 47.8
9 3
50.8Ø, 2 Bolt Pilot
For 43 - 58 and 73YB Pumps
Installation Details for 15 - 29YB Pumps
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43 YB
10.0
7.5
5.0
2.5
0
12.5
10.0
7.5
5.0
2.5
0
1 5 0 b a
r
1 0 0 b
a r
7 0 b a r
3 5 ba r
7 bar
20
15
10
5
0
7 b a
r
1 5 0 b a
r
6
5
4
3
2
1
0
6
7
5
4
3
2
1
0
58 YB
10.0
7.5
5.0
2.5
0
15.0
12.5
10.0
7.5
5.0
2.5
0
1 5 0 b a
r
1 0 0 b a
r
7 0 b a
r
3 5 b a r
7 bar
25
20
15
10
5
0
7 b a r
1 5 0
b a r
73 YB
12.5
10.0
7.5
5.0
2.5
00
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0
1 5 0 b a
r
1 0 0 b a
r
7 0 b a
r
3 5 b a r
7 bar
30
25
20
15
10
5
0
8
7
6
5
4
3
2
1
0
7 b a r
1 5 0
b a r
Typical pump Performance Curve (continued)
Curves established using hydraulic mineral oil with viscosity of 27.4 Centistokes at 49°C
I n p u t ( K i l o w a t t s )
C a p a c i t y ( U S g p m )
C a p a c i t y ( U S g p m )
C a p a c i t y ( U S g p m )
I n p u t ( K i l o w a t t s )
I n p u t ( K i l o w a t t s )
I n p u t ( H P )
C a p a c i t y ( l p m )
I n p u t ( H P )
C a p a c i t y ( l p m )
I n p u t ( H P )
C a p a c i t y ( l p m )
Speed (rpm) Speed (rpm)
800 1600 2400 3200 4000 4800 0 800 1600 2400 3200 4000 4800
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13
HCS Series
Hydraulic GearPumps12 to 32 cc/revCapacity
An EXTERNAL GEAR PUMP consists basically of adrive gear (rotated by an external source via a shaft)and a meshing driven gear in a housing with an inletand outlet port. Fluid is forced through the pump as itbecomes trapped between the rotating gear teeth andthe housing. Because the output per revolution isbased on the fixed volume displaced by the gears, theflow rate may be varied only by varying the gear speed.
SpecificationsMaximum Pressure:
103 bar
Capacity:12-32 cc/rev (see Table 1, ordering codes)
Maximum Speed:2400 rpm
Porting:inlet and outlet: 3/4” - 14 NPT drain: 1/4” - 18 NPT.
Weight:6.0 kg to 8.0 kg
Mounting:SAE type ‘A’ 2-bolt standard. For optional foot mount33020-1 consult bulletin FP39-1 available from WebtecHydraulics
Shaft:Straight keyed shaft, standard
Seals:temperature and oil resistant double lip seals, standard -viton or mechanical (face) seals available at extra cost.
Symbol
Features
G Customer can select from 4 standard displacements
ranging from 12 to 32 cc/rev with pressures to 103bar and speeds to 2400 rpm.
G Positive displacement pressure balanced gear type
pumps for use with non-corrosive liquids withlubricating properties.
GCompact and rugged cast iron housings, designedfor extra strength, are assembled for evendistribution of pressure loads.
G Double-row ball bearing absorbs compound driving
thrust and heavy duty needle bearing assure highmechanical efficiency.
G Uni-directional rotation permits internal bleeding
thus eliminating the drain port*. Bi-directionalrotation requires external draining.
G Temperature and oil resistant double lip type seals
are standard. Viton or mechanical (face) seals areavailable at extra cost.
G Suitable for mining and underground use when fitted
with Steel Pilot Plate.
G * For installations of this type clockwise (RH) or anti-
clockwise (LH) when looking at the shaft end of thepump should be specified
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14
ORDERING CODES Typical Code 0 HCS RH S
Displacement (Table 1)
HCS - Pump Series
Rotation if internal Drain is required
Pilot PlateS = SteelA = Aluminium
0HCS
10.0
5.0
0
10
5
0
1 0 0 b a r
70 bar
35 bar
1 0 0 b a r
7 0 b a r
35 bar
1 HCS
10.0
5.0
0
15
10
5
0
2 HCS
15.0
10.0
5.0
0
15
10
5
0
1 0 0 b a
r
7 0 b a r
3 5 b a r
1 0 0 b
a r
7 0 b a
r
3 5 b a r
3 HCS
20.0
15.0
10.0
5.0
00
20
15
10
5
0
40
20
0
0 b a r
1 0 0 b a r
40
20
0
0 b a r
1 0 0 b a
r
0 b a r
1 0 0 b
a r
60
40
20
0
80
60
40
20
0
0 b a
r
1 0 0 b a
r
400 800 1200 1600 2000 2400 0 400 800 1200 1600 2000 2400
Typical Pump Performance Curves
Curves established using Type ‘A’ automatic transmission oil at 49°C
Input(kW)
Input(kW)
Input(kW)
Inpu
t(kW)
I n p u t ( H P )
I n p u t ( H P )
I n p u t ( H P )
I n p u
t ( H P )
C a p a c
i t y ( l p m )
C a p a c i t y ( l p m )
C a p a c i t y ( l p m )
C a p a c i t y ( l p m
)
Installation DetailsDimensions in millimetres Table 1: Displacement
106.4
1 3 6 .
7
5 1 .
3
4 5 .
7
114.3
50.823.4
A 69.1
19.05 Ø
8 2 .
6
0HCS 1HCS 2HCS 3HCS
Dim A. 96.8 100.8 107.2 112.0
Code Displacement
0 12.6 cc/rev
1 17.5 cc/rev
2 25.1 cc/rev
3 31.3 cc/rev
Speed (rpm)Speed (rpm)
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15
YC Series
Gear Pumps12 to 32 cc/revCapacity
An EXTERNAL GEAR PUMP consists basically of adrive gear (rotated by an external source via a shaft)and a meshing driven gear in a housing with an inletand an outlet port. Fluid is forced through the pump asit becomes trapped between the rotating gear teeth andthe housing. Because the output per revolutions isbased on the fixed volume displaced by the gears, theflow rate may be varied only by varying the gear speed.
Specifications
Maximum Pressure:210 bar
Capacity:12-32 cc/rev
Maximum Speeds:3000 rpm
Porting:BSPF side ports standard
Weight:to 3.75 kg
Mounting:YCA-SAE type A, 2 bolt flange
Wear Plate:pressure balanced, steel backed bronze
Bearings:4 special sleeve type
Gears:smooth running spur, heat treated alloy steel
Seals:double-lip on drive shaft
Housing:high duty aluminium
Flow divider:(optional)
Symbol
Features
G Customer can select from 4 standard displacements
ranging from 12 to 32 cc/rev with pressure to 210bar and speeds to 3000 rpm.
G Positive displacement pressure balanced gear type
pumps for use with non-corrosive liquids withlubricating properties.
G Pressure balanced wear plate gives high volumetricefficiency and prevents clearance changes due tooperating heat.
G Seal chamber pressures are low, eliminating seal
leaks and internal thrust bearing loads.
G Internal drain eliminates the need for an external
drain line.
G Optional flow divider manifold allows a pre-set
constant flow of oil at the regulated port.
G Exceptionally compact design combined with highefficiency makes the YC series ideal for hydraulicapplications where space is at a premium andweight is a critical factor.
Quality Hydraulic Components from the Webtec Range
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PumpCode Displacement Gear Width
cc/rev in3 /rev mm ins
077 12.62 0.77 12.70 0.50
116 19.01 1.16 19.05 0.75
155 25.40 1.55 25.40 1.00
194 31.79 1.94 31.75 1.25
16
Quality Hydraulic Components from the Webtec Range
ORDERING CODES Typical Code 077 YCA 00 17 01 L F 00
Displacement (Table 1)
Pump Series
Valve Description (Table 3)
Porting Note 1 (Tables 4 & 4A)
Shaft Extension (Table 5)
Shaft Rotation - as viewed from shaft end (L or R)
Major Modification Note 6
Relief Valve Setting Note 7
Note 6. ‘F’ code designates design modification.
Note 7. On all pumps incorporating a flow divider, pump code must indicatepriority relief valve pressure setting which is to be indicated as follows:01 = 100, 02 = 200 etc. These digits represent desired relief valvesettings in psi divided by 100 (100 psi = 6.89 bar).
Table 5: Shaft Extension
Table 4: Porting (Pumps without Manifolds)
Table 4a: Porting (Pumps with manifolds)
No. Description
01 Straight w/square key slot
02 Splined 5/8” OD - 9 tooth
No. Description
80 Tank 3/4” BSPF side - Press 1/2” BSPF side (Standard on all pumps)
17 Tank 1-1/16” - 12 side - Press 7/8” - 14 side (pumps 077 & 116)
21 Tank 1-3/16” - 12 side - Press 7/8” - 14 side (pumps 155 & 194)
Table 1: Displacement Table 3: Valve Description
No. Description00 No relief or check valve valve (no manifold)
01 Priority flow divider assembly. 11.4 lpm
02 Priority flow divider assembly. 18.9 lpm
05 Priority flow divider assembly. 3.8 lpm
06 Priority flow divider assembly. 22.6 lpm
07 Priority flow divider assembly. 26.4 lpm
08 Priority flow divider assembly. 30.2 lpm
09 Priority flow divider assembly. 34.0 lpm
10 Priority flow divider assembly. 7.6 lpm
11 Priority flow divider assembly. 15.2 lpm
No. Description
04 Tank 1-1/16” - 12 side - Pri & Sec 7/8” - 14 side (pumps 077 & 116)
11 Tank 1-3/16” - 12 side - Pri & Sec 7/8” - 14 side (pumps 155 &194)
81 Tank 3/4” BSP - Pri & Sec 1/2” BSP
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Pump 077 116 155 194
A 71.37 77.72 84.07 90.42
B 51.82 58.17 64.52 70.87
17
Quality Hydraulic Components from the Webtec Range
106.4
Ø11.2
A 42.9
B50.8
4 4 .
4
2 0 .
3
Installation DetailsDimensions in millimetres
63.5 47.7
66.5
8 2 .
5
RH Rotation Shown
Flow Divider
Priority Port
Secondary Port
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Quality Hydraulic Components from the Webtec Range
18
077 YC20
15
10
5
0
25
20
15
10
5
0
2 0 0 b a r
1 5 0 b
a r
1 0 0 b a r
5 0 bar
10 bar
25
20
15
10
5
0
116 YC
30
25
20
15
10
5
0
2 0 0 b a
r
1 5 0 b a
r
1 0 0 b a
r
5 0 b a r
1 0 bar
2 0 0 b a
r
1 5 0 b a
r
1 0 0 b
a r
5 0 b a r
1 0 bar
1 5 0 b
a r
1 0 0 b a r
5 0 b a r
10 bar
40
30
20
10
0
077 YC
116 YC
50
40
30
20
10
0
1 0 b a r
2 0 0 b a
r
1 0 b a r
2 0 0 b a
r
155 YC30
25
20
15
10
5
0
40
35
30
25
20
15
10
5
0
194 YC
30
20
10
00
40
30
20
10
0500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000
155 YC
80
60
40
20
0
1 0 b a r
2 0 0 b a
r
194 YC100
80
60
40
20
0
1 0 b a r
1 5 0 b a
r
Typical pump Performance Curves
Curves established using SAE No. 10 oil at 50°C
I n p u t ( K i l o w a t t s )
I n p u t ( K i l o w a t t s )
I n p u t ( K i l o w a t t s )
I n p u t ( K i l o w a t t s
)
I n p u t ( H P )
I n p u t ( H P )
I n p u t H P
I n p u t H P
C a p a c i t y ( l p m )
C a p a c i t y ( l p m )
C a p a c i t y l p m
C a p a c i t y ( l p m )
Speed (rpm) Speed (rpm)
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NOTES
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a n d p r o d u c e d b y t h e M a r k e t i n g D e p t . W e b t e c P r o d u c t s L t d .
P U M P S - C A - E N G - 1 5 0 5 . p d f
0 6 / 0 5
Your Webtec Products representative:
Nuffield Road, St. Ives, Cambridgeshire, PE27 3LZ, UKTel: +44(0)1480 397400 Fax: +44(0)1480 466555
Manufacturers of Hydraulic Components and Test Equipment for the Mobile,
Industrial and Agricultural Industries
Webtec Products Limited