Diagnostic, Orifice, Bleed Adapters & Specialty Fittings · • Additional 20 sizes available in 24° flareless/metric ... • Where port threads are not compatible with ... 4300

Diagnostic, Orifice,Bleed Adapters andSpecialty Fittings

The Fitting Authority

N2 Parker Hannifin CorporationTube Fittings DivisionColumbus, Ohiowww.parker.com/tfd

4300 Catalog Diagnostic, Orifice, Bleed Adaptersand Specialty Fittings

P5ONBABleed Screw / SAE-ORB

N12

G4MXSMOBSPP Gauge / 37° Flare

N7

GMA3EO Tube / EO Tube /EMA-3 Diagnostic Tip

N5

LOHL6G5TPORFS Swivel / ORFS /SAE-ORB

N5

XHX6G5TP37° Swivel / 37° Flare /SAE-ORB

N5

VKA3EO Swivel / DiagnosticTip

N10

F5OGSAE / NPTF Gauge

N6

XHX737° Seat / 37° Flare withOrifice

N11

DiagnosticTees

DiagnosticTee PortAdaptersand Plugs

LOHL6ORFS Swivel withOrifice / ORFS

N11

HPBABleed Screw / NPT

N12

PNLOBABleed Screw / ORFS

N12

FNLBABleed Screw / ORFSSwivel

N12

DirectConnectDiagnosticTips

P5ONHex Head Plug

G19

HP5ONHollow Hex Plug

G20

EMA3SAE / ORB

N6*

PD331PD / SAE-ORB

N6*

DirectConnectSamplingTips

PDFS341PD Fluid Sampling /SAE-ORB

N6*

NPT /SAE-ORBPressureGaugeAdapters

GLONPT Gauge / ORFS

N8

G5LSAE-ORB Gauge / ORFS

N8

G65LSAE-ORB Gauge /ORFS Swivel

N8

G6XNPT Gauge / 37° Swivel

N8

G6LNPT Gauge / ORFSSwivel

N8

GTXNPT Gauge / 37° Flare

N8

BSPPressureGaugeAdapters

MAVBSPP Gauge / EO

N7

MAVEBSPP Gauge /EO Swivel

N7

G4MLOSMOBSPP Gauge / ORFS

N7

SwivelTubeAdapters

PDBTLORFS Swivel / PDDiagnostic Tip

N10*

PDBTX37° Swivel / PDDiagnostic Tip

N10*

PDBTUSAE Flareless / PDDiagnostic Tip

N10*

OrificeFittings

ORFS /Port BleedAdapters

0109NPTF / PTT 30° Flare

N13

ParkerTripleThreadFitting

BulkheadDiagnosticCouplings

PD346 / PD366 /PD386PD / ORFS

N9*

PD345 / PD355 /PD365PD / 37° Flare

N9*

MAV 1/4 NPT SeriesDiagnostic Tip / Gauge

N9*

WGTXNPT Gauge / 37° Flare

N9

AOHGSAE Adj / NPT

N6

* Standard products available through Parker’s Quick Coupling Division.



IntroductionParker offers a line of specialty-type adapters specificallydesigned for diagnostic, fixed flow control and bleeding appli-cations.

Diagnostic products consist of a line of in-line diagnostic tees,pressure gauge connectors and diagnostic tips. These prod-ucts have been developed to work in conjunction with elec-tronic diagnostic products available from Parker’s Quick Cou-pling Division and other mechanical pressure and tempera-ture sensing equipment. Some products can be used for fluidsampling and bleeding purposes as well.

Parker offers a standard and custom line of fixed flow controlorifice fittings. These products are available as standard in twoParker product series — ORFS and 37° flare, and as a customoption in virtually any orifice size, fitting series, size, materialand configuration.

Parker’s bleed adapters are designed to remove entrappedair from a hydraulic system. A common problem in hydraulicsystems is trapped air and the subsequent spillage of hydrau-lic oil while removing components to bleed air from lines underpressure. Parker’s bleed adapters provide a quick, clean, andsimple method of bleeding entrapped air from hydraulic systems.

Lastly, Parker offers a limited line of PTT (Parker Triple Thread)30° flare adapters for transportation markets.

Diagnostic Fittings andAdaptersIn-Line Diagnostic Tees

Features• Designed around the two most common hydraulic

tube/hose interfaces: ORFS (Seal-Lok) and 37° flare(JIC / Triple-Lok) (see A)

• Available in 16 sizes and end configurations asstandard

• ORFS and 37° flare swivel feature offers unlimitedpositioning without displacing port adapter (see B)

• Uses elastomeric sealing: SAE –4 (7/16-20 UNF) portas universal diagnostic port per SAE J1926-1 / ISO11926 (see C)

• Enlarged and lengthened body hex ensures thatdiagnostic port offers full thread engagement andpressure capability (see D)

• Adaptable to Parker’s line of diagnostic and fluidsampling tips including: EMA-3, PD and PDFS, as wellas various direct connecting electronic/mechanicalpressure gauges

• Designed to complement Parker’s line of Senso-Control® electronic diagnostic equipment

• Increased pressure ratings and assembly torqueresistance for diagnostic applications

• Additional 20 sizes available in 24° flareless/metric(EO/EO-2) tube “union style” tee

• 24° flareless/metric rated by size and series as shownin accompanying tables

• Custom diagnostic tees available upon request.

B

A37° Flare

AORFS

C & D

Fig. N2 — Parker’s XHX6G5TP (top) and LOHL6G5TP(bottom) in-line diagnostic tees

Fig. N1 — Parker offers a full line of diagnostic, orifice,bleed adapters and specialty fittings



Applications• In-line pressure and temperature measurements• In-line oil sampling to evaluate hydraulic contamina-

tion, caused by problems with filtration or internalcomponents

• In-field diagnostics without removal of port adapters.Simply remove hose swivel and insert in-line tee.

• Permanent or temporary OEM and MRO diagnosticapplications:• Where traditional in-port diagnostic tips cannot be

located or easily accessed• Where OEM diagnostic tips have not been

installed

• Non-traditional diagnostic locations (portable)• Where port threads are not compatible with

standard diagnostic tips

• To eliminate reducer bushings and couplings typicallyrequired to neck down from larger size connections tosmaller connections; e.g. reductions required for agauge, diagnostic tip, bleed adapter, or tube/hoseconnection.

System Installation

As with most Parker adapter products, Diagnostic tees arerated with both a dynamic and static working pressure rating.A static pressure rating can often be used for in-field ortemporary diagnostic applications so long as the maximumstatic pressure rating is not exceeded and the applicationdoes not exceed 30,000 operating cycles.

Assembly Instructions

The body of the diagnostic tee can be used repeatedly for 10-20 remakes at full rated pressure and assembly torque. SeeTables N2 and N3 for recommended swivel nut assemblytorques.

Specifications

Table N1 — Material Specifications of Parker’s Diagnostic Tees

in.-lb. ft.-lb.4-4 XHX6G5TP 195 16

6-4 XHX6G5TP 353 29

8-4 XHX6G5TP 788 66

10 XHX6G5TP 975 81

12 XHX6G5TP 1425 119

16 XHX6G5TP 2100 175

20 XHX6G5TP 2850 238

24 XHX6G5TP 3375 281

Assembly Torque(+10%-0)Part

Number

Note: Assembly values are for dry,unlubricated swivel nut connections

Table N2 — Assembly Torques forDiagnostic Tees

Fig. N3 — Illustration showing the versatility of Parker’sdiagnostic tee product line

in.-lb. ft.-lb.4-4 LHL6G5TP 22 2

6-4 LHL6G5TP 36 3

8-4 LHL6G5TP 48 4

10 LHL6G5TP 72 6

12 LHL6G5TP 102 9

14 LHL6G5TP 114 10

16 LHL6G5TP 132 11

20 LHL6G5TP 168 14

24 LHL6G5TP 216 18

32 LHL6G5TP 432 36

Assembly Torque(+10%-0)Part

Number

Table N3 — Assembly Torques forDiagnostic Tees

SpecificationsSAE Products: 37° Flare and ORFS

Parker Triple-Lok and Seal-Lok24° Flareless Metric Parker

EO and EO-2

37° Flare (JIC): SAE J514/ISO 8434-2 ORFS: SAE J1453/ISO 8434-3Steel, Cold Drawn barstock

– ASTM A108, Type 12L14High Strength Nuts

– ASTM A108, Type C1137Cold Formed Swivel Nuts

Steel, ASTM A576 Type C-1010/C1008 N/A

Temperature Range, Non-Elastomeric Seals

Steel: -40°F to +500°F Steel: -40°F to +500°F

ORFS Nitrile O-Rings: -30° F to +250° F Nitrile EO-2: -30°F to +212°F

ORFS Fluorocarbon O-Rings: -15° F to +400° F

Fluorocarbon EO-2: -15°F to +400°F

ORFS: SAE -4 through -2437° Flare: SAE -4 through -24

Maximum Rated Working Pressure

See accompanying Tables See accompanying Tables

DIN 2353/ISO 8434-1

Steel, Per DIN 3859

Light: 6-L through 42-L Heavy: 6-S through 38-S

Industry Standards

37° Flare/ORFS Material – Machined Bodies and Swivel Nuts

Temperature Range, Elastomeric Seals

Body Sizes



LH

2

3

1

LOHL6G5TPGauge Port TeeORFS / ORFS Swivel /

SAE-ORB

Note: Fluorocarbon O-rings are available upon request.

XHX6G5TPGauge Port Tee37° Flare / 37° Swivel /

SAE-ORB

LH

2

3

1

GMA3Diagnostic TipEO Tube / EO Tube /

M16 x 2.0 Integrated Tip

S2

TubeO.D.

S3 H

I1

L1

To specify EO-2, add “Z” between tube size and series.Example: GMA3/28ZLA3C

1(in.)

2(in.)

3UN/UNF

Static-S

Dynamic-S

4-4 LOHL6GP5TP 1/4 1/4 7/16-20 1-1/16 1.83 10.0 6.0

6-4 LOHL6GP5TP 3/8 3/8 7/16-20 1-1/16 1.95 10.0 6.0

8-4 LOHL6GP5TP 1/2 1/2 7/16-20 1-1/16 2.18 10.0 6.0

10-4 LOHL6GP5TP 5/8 5/8 7/16-20 1-1/8 2.40 10.0 6.0

12-4 LOHL6GP5TP 3/4 3/4 7/16-20 1-1/4 2.59 10.0 6.0

16-4 LOHL6GP5TP 1 1 7/16-20 1-1/2 2.85 9.5 6.0

20-4 LOHL6GP5TP 1 1/4 1 1/4 7/16-20 1-3/4 3.07 6.5 5.0

24-4 LOHL6GP5TP 1 1/2 1 1/2 7/16-20 2-1/8 3.22 5.0 4.0

L(in.)

STANDARDPressure

(x 1,000 PSI)

H(in.)

TUBE FITTING PART #

END SIZE1

(in.)2

(in.)3

UN/UNFStatic

-SDynamic

-S4-4 LOHL6GP5TP 1/4 1/4 7/16-20 1-1/16 1.83 10.0 6.0

6-4 LOHL6GP5TP 3/8 3/8 7/16-20 1-1/16 1.95 10.0 6.0

8-4 LOHL6GP5TP 1/2 1/2 7/16-20 1-1/16 2.18 10.0 6.0

10-4 LOHL6GP5TP 5/8 5/8 7/16-20 1-1/8 2.40 10.0 6.0

12-4 LOHL6GP5TP 3/4 3/4 7/16-20 1-1/4 2.59 10.0 6.0

16-4 LOHL6GP5TP 1 1 7/16-20 1-1/2 2.85 9.5 6.0

20-4 LOHL6GP5TP 1 1/4 1 1/4 7/16-20 1-3/4 3.07 6.5 5.0

24-4 LOHL6GP5TP 1 1/2 1 1/2 7/16-20 2-1/8 3.22 5.0 4.0

L(in.)

STANDARDPressure

(x 1,000 PSI)

H(in.)

TUBE FITTING PART #

END SIZE

StaticA3C

DynamicA3C

GMA3/06L 6 49 21 51 14 24 7.2 4.5

GMA3/08L 8 49 21 51 17 24 7.2 4.5

GMA3/10L 10 49 23 53 19 24 7.2 4.5

GMA3/12L 12 50 23 53 22 27 5.8 4.5

GMA3/15L 15 52 25 55 27 30 5.8 4.5

GMA3/18L 18 53 24 57 32 32 5.8 4.5

GMA3/22L 22 55 28 61 36 36 3.6 2.3

GMA3/28L 28 57 28 61 41 41 3.6 2.3

GMA3/35L 35 60 26 69 50 46 3.6 2.3GMA3/42L 42 64 25 71 60 55 3.6 2.3

GMA3/06S 6 49 25 55 17 24 10.1 9.1

GMA3/08S 8 49 25 55 19 24 10.1 9.1

GMA3/10S 10 49 24 57 22 24 10.1 9.1

GMA3/12S 12 49 24 57 24 24 10.1 9.1

GMA3/14S 14 50 27 63 27 27 10.1 9.1

GMA3/16S 16 52 26 63 30 30 9.1 5.8

GMA3/20S 20 55 26 69 36 36 9.1 5.8

GMA3/25S 25 57 27 75 46 41 9.1 5.8

GMA3/30S 30 60 28 81 50 46 6.1 5.8

GMA3/38S 38 64 29 91 60 55 6.1 4.5

TUBE FITTING PART #

TUBE O.D.(mm)

H(mm)

STANDARDPressure

(x 1,000 PSI)

I 1(mm)

L1(mm)

S2(mm)

S3(mm)



Diagnostic Tee Port Adaptersand Test PointsAdapters are available to enable traditional NPT pressuregauges to be connected to the 7/16-20 UNF port of thediagnostic tees. F5OG adapters provide a simple conversion,while the AOHG adapters provide the same simple conversionwith infinite positioning due to the male ORB adjustable stud.

Direct connecting test points products, available throughParker’s Quick Coupling Division, provide reliable and safetesting opportunities. These traditional pressure and tempera-ture test points (PD and EMA) are the most common diagnostictest interfaces used in hydraulic applications. The PDFS isused for fluid sampling applications. Consult Parker’s QuickCoupling Division for more information on these and manyother diagnostic test point options available through Parker.

L

C

1 2

L

H

12

NPT Pressure Gauge Conversion Adapters

F5OG-S AOHG-S

Parker’s Quick Coupling DivisionTest Point Couplings

D

F

D

F

D

F

PDSeries

EMA3Series

PDFSSeries

Fig. N4 — Diagnostic tees shown with PD Series nippleinstalled in 7/16-20 UNF (SAE-ORB) port

Features of Parker Quick Coupling DivisionDiagnostic Test Points

PD:

• Flush face valving, minimizing fluid loss• Industry standard interface• Push-to-connect

EMA3:• M16 x 2 thread-to-connect• Connects under pressure

• Industry standard interface

PDFS:• For fluid sampling only

* A product of Parker’s Quick Coupling Division. Contact QCD at(763) 544-7781 or at www.parker.com/quickcouplings.

1UN/UNF-2A

2NPTF

Static-S

Dynamic-S

4-1/8 F5OG 7/16-20 1/8-27 9/16 1.00 8.0 6.0

4-1/4 F5OG 7/16-20 1/4-18 3/4 1.16 8.0 6.0

4-1/8 AOHG 7/16-20 1/8-27 5/8 1.41

4-1/4 AOHG 7/16-20 1/4-18 3/4 1.57

L(in.)

STANDARDPressure

(x 1,000 PSI)TUBE FITTING PART #

H(in.)

END SIZE

TUBE FITTING PART #

ORB PORT

THREADUN/UNF-2A

D(in.)

F(in.)

PERFORMANCERATINGS

PD331* 7/16-20 1.80 0.69

EMA3/7/16-20 UNF-2A* 7/16-20 1.88 0.67

PDFS341* 7/16-20 1.60 0.69

Consult QCDCatalog 3800



BSPP Diagnostic PressureGauge AdaptersParker’s BSPP direct-connect pressure gauge adapters areavailable in the most common tube/hose connections —ORFS, 37° Flare (JIC) and 24° Metric Flareless (DIN 2353).European pressure gauges often utilize BSPP threads on thepressure gauges (manometers). Sealing is achieved at thebottom of the port with a sealing washer as shown in theillustration on the right.

EO / EO-224° Flareless

Swivel

EO / EO-224° Flareless

37° FlareORFS

BSPP Pressure Gauge Adapters

L

H

2 1

L

H

12

L

2 1

H H2

L

2 1

H

G4MXSMO(Type A)

G4MLOSMO(Type B)

MAVE(Type C)

MAV(Type D)

Note: MAV supplied as standard with DPR +M nut (EO assembled)

* BSPP Pressure Gauge Connection requires seal. 1/4" replacement seal P/N: M25180.

** BSPP Pressure Gauge Connection requires seal. 1/4" replacement seal P/N: DKI1/4A3CX,

1/2" replacement seal P/N: DKI1/2A3CX.

Fig. N5 — BSPP pressure gauge connections

BSPP pressuregauge port sealing

with useof sealing ring

Static Dynamic S S

4-4G4MXSMO A 1/4 1/4-19 31.0 17 — 5.0 5.0

6G4MXSMO A 3/8 1/4-19 28.0 17 — 5.0 5.0

8-4G4MXSMO A 1/2 1/4-19 31.0 19 — 5.0 5.0

4-4G4MLOSMO B 1/4 1/4-19 26.8 17 — 5.0 5.0

6G4MLOSMO B 3/8 1/4-19 28.2 19 — 5.0 5.0

8-4G4MLOSMO B 1/2 1/4-19 29.8 22 — 5.0 5.0

Static Dynamic A3C A3C

MAVE06LRA3C C 6 1/4-19 35.5 19 14 4.6 4.6

MAVE08LRA3C C 8 1/4-19 35.5 19 17 4.6 4.6

MAVE10LRA3C C 10 1/4-19 36.0 19 19 4.6 4.6

MAVE06SRA3C C 6 1/2-14 42.5 27 17 9.1 9.1

MAVE08SRA3C C 8 1/2-14 43.0 27 19 9.1 9.1

MAVE10SRA3C C 10 1/2-14 43.5 27 22 9.1 9.1

MAVE12SRA3C C 12 1/2-14 45.0 27 24 9.1 9.1

MAVE06SR1/4A3C C 6 1/4-19 35.5 19 17 9.1 9.1

MAVE08SR1/4A3C C 8 1/4-19 35.5 19 19 9.1 9.1

MAVE10SR1/4A3C C 10 1/4-19 39.0 19 22 9.1 9.1

MAVE12SR1/4A3C C 12 1/4-19 39.0 19 24 9.1 9.1

MAV04LLRA3C D 4 1/4-19 33.0 19 10 1.4 1.4

MAV06LRA3C D 6 1/4-19 37.0 19 14 4.5 4.5

MAV08LRA3C D 8 1/4-19 37.0 19 17 4.5 4.5

MAV10LRA3C D 10 1/4-19 38.0 19 19 4.5 4.5

MAV12LRA3C D 12 1/4-19 38.0 19 22 4.5 4.5

MAV06SRA3C D 6 1/2-14 46.0 27 17 9.1 9.1

MAV08SRA3C D 8 1/2-14 46.0 27 19 9.1 9.1

MAV10SRA3C D 10 1/2-14 47.0 27 22 9.1 9.1

MAV12SRA3C D 12 1/2-14 47.0 27 24 9.1 9.1

1(mm)

2BSPP

STANDARDPressure

(x 1,000 PSI)H

BODYHEX(mm)

H2NUTHEX(mm)

TUBE FITTING PART # TYPE

END SIZEL

(mm)1

(in.)2

BSPP



NPT and SAE-ORB DiagnosticPressure Gauge AdaptersParker’s NPT and SAE-ORB direct-connect pressure gaugeadapters are available in the most common North Americantube/hose connections — ORFS and 37° Flare (JIC). NorthAmerican pressure gauge manufacturers offer gauges prima-rily with NPT and some with SAE-ORB port stud options. These37° flare and ORFS connectors are designed to attach pres-sure gauges to hose swivel ends or directly to run / branch teesfor in-line diagnostic applications as shown on the right.

GLO GTX G6L

R5OLO-SRun Tee

NPT / SAE Pressure Gauge Adapters

FF

H

2 1

FF

H S

2 1

FF

H

2 1

FF

H S

2 1

FF

H

2 1

GLO(Type A)

G6L(Type B)

G5L(Type C)

G65L(Type D)

GTX(Type E)

G6X(Type F)

Hydraulic Hose

Fig. N6 — Typical applications for NPT pressure gaugeadapters. Illustrations show direct hose connections andRun Tee connection.

Traditional orelectronic / digitalpressure gauge

FF

1 2

H S

Static Dynamic -S -S

4-4 GLO A 1/4 1/4-18 1.25 3/4 — 9.5 6.0

6 GLO A 3/8 1/4-18 1.30 3/4 — 8.0 6.0

8-4 GLO A 1/2 1/4-18 1.20 7/8 — 9.5 6.0

4-4 G6L B 1/4 1/4-18 1.48 3/4 11/16 9.5 6.0

6 G6L B 3/8 1/4-18 1.60 7/8 13/16 8.0 6.0

8-4 G6L B 1/2 1/4-18 1.75 7/8 15/16 9.5 6.0

UN/UNF

4 G5LO C 1/4 7/16-20 1.10 3/4 — 6.0 5.0

6-4 G5LO C 3/8 7/16-20 1.08 3/4 — 6.0 5.0

8-4 G5LO C 1/2 7/16-20 0.78 7/8 — 6.0 5.0

4 G65L D 1/4 7/16-20 1.38 11/16 11/16 6.0 5.0

6-4 G65L D 3/8 7/16-20 1.51 3/4 13/16 6.0 5.0

8-4 G65L D 1/2 7/16-20 1.57 7/8 15/16 6.0 5.0

NPT

2 GTX E 1/8 1/8-27 1.13 9/16 — 10.0 5.0

3 GTX E 3/16 1/8-27 1.13 9/16 — 10.0 5.0

4-4 GTX E 1/4 1/4-18 1.39 3/4 — 10.0 5.0

4 GTX E 1/4 1/8-27 1.19 9/16 — 10.0 5.0

6-2 GTX E 3/8 1/8-27 1.13 5/8 — 10.0 5.0

6 GTX E 3/8 1/4-18 1.41 3/4 — 10.0 5.0

8-4 GTX E 1/2 1/4-18 1.41 13/16 — 8.0 5.0

4-4 G6X F 1/4 1/4-18 9/16 3/4 9/16 9.5 6.0

4 G6X F 1/4 1/8-27 9/16 9/16 9/16 10.0 7.5

6 G6X F 3/8 1/4-18 11/16 3/4 11/16 6.0 5.0

TUBE FITTING PART # TYPE

1(in.)

2NPT

END SIZEH

BODY HEX(in.)

S SWIVEL

NUT HEX(in.)

FF(in.)

STANDARDPressure

(x 1,000 PSI)



Diagnostic Tube / Hose AdaptersParker’s diagnostic tube/hose adapters offer direct connec-tion to the most common tube and hose interfaces — ORFS,37° Flare (JIC) and 24° Metric Flareless (DIN 2353). The swivelconnections are commonly used on tees where periodicpressure and temperature checks are required. Several bulk-head connections are also available as well for diagnosticpanels, a common industrial and mobile equipment practice.

Several of these product series are offered by Parker’s QuickCoupling Division as designated in the accompanying tables.

Bulkhead Application

Tube Swivel Applications

In Port

In-Line

BulkheadLocknut

ORFS or 37° SwivelHose Connection

Parker MaleRun Tee

8 R5OX-S

PD38BTX

Parker T Series EOor EO-2 Fitting

VKA3 Series

Bulkhead Diagnostic Couplings

PD Nipple*Triple-Lok Bulkhead NipplePD / Bulkhead 37° Flare

DE

F

QCD PART # STEEL

TUBESIZE

D OVERALLLENGTH

(in.)

EEXPOSEDLENGTH

(in.)

FHEXSIZE(in.)

PD345 4 2.92 2.22 0.81

PD355 5 2.92 2.22 0.81

PD365 6 3.00 2.30 0.81

Note: Add -6 to part number to include dust cap;e.g., PD345-6. Contact factory for seal option.

PD Nipple*Seal-Lok Bulkhead NipplePD / Bulkhead ORFS

DE

FQCD

PART # STEEL

TUBESIZE

D OVERALLLENGTH

(in.)

EEXPOSEDLENGTH

(in.)

FHEXSIZE(in.)

PD346 4 2.98 2.27 0.81

PD366 6 3.08 2.37 1.00

PD386 8 3.18 2.47 1.12

MAV 1/4 NPT*M16 x 2.0 Diagnostic Tip /1/4 NPT Gauge

DC

B

A

WGTXFemale Bulkhead ConnectorNPT / 37° Flare

L

1

F Hex

2

37° Swivel HoseConnection

* A product of Parker’s Quick Coupling Division. Contact QCD forperformance data at (763) 544-7781 or at www.parker.com/quickcouplings.

** Includes dust cap.

1(in.)

2 NPT

4 WGTX 1/4 1/8-27 11/16 1.84

4-4 WGTX 1/4 1/4-18 3/4 2.11

6 WGTX 3/8 1/4-18 13/16 2.06

FHEXSIZE(in.)

LOVERALLLENGTH

(in.)

TUBE FITTING PART #

END SIZE

QCD PART #

APORT

THREADSIZE

BHEXSIZE(in.)

CPORT

THREADSIZE

D OVERALLLENGTH

(in.)

MAV1/4NPT-MA3 1/4-18 NPT 0.75 M16 x 2.0 2.22

MAV1/4NPT-MA3-KM** 1/4-18 NPT 0.75 M16 x 2.0 2.22



Tube Swivel Diagnostic Couplings

PDBTX*Triple-Lok Tube Swivel NipplePD Diagnostic Tip / 37° Swivel

AB

AB

QCD PART # STEEL

TUBESIZE

A OVERALLLENGTH

(in.)

BEXPOSEDLENGTH

(in.)

PD34BTX 4 1.64 0.94

PD36BTX 6 1.66 0.96

PD38BTX 8 1.17 0.47

PD312BTX 12 1.39 0.69

Note: Tube end nipples are designed to meet theperformance standards of the tube or hose fittingconnection, which may or may not meet SAEJ1502 Standards.

PDBTL*Seal-Lok Tube Swivel NipplePD Diagnostic Tip / ORFS Swivel

AB

AB

QCD PART # STEEL

TUBESIZE

A OVERALLLENGTH

(in.)

BEXPOSEDLENGTH

(in.)

PD34BTL 4 2.18 1.48

PD36BTL 6 2.30 1.60

PD38BTL 8 1.12 0.42

PD310BTL 10 1.16 0.46

Note: Tube end nipples are designed to meet theperformance standards of the tube or hose fittingconnection, which may or may not meet SAEJ1502 Standards.

PDBTU*Ferulok Tube Swivel NipplePD Diagnostic Tip / SAE Flareless

AB

QCD PART # STEEL

TUBESIZE

A OVERALLLENGTH

(in.)

BEXPOSEDLENGTH

(in.)

PD38BTU 8 1.40 0.70

VKA3M16 x 2.0 Diagnostic

Tip / EO Swivel

H

SW2SW1

G D1

H

SW2SW1

G D1

Type AType B

PD34BTL

PD36BTL

PD34BTX

PD36BTX

Static DynamicA3C A3C

VKA3/06LA3C A 6 M12 x 1.5 55 17 14 7.2 4.5

VKA3/08LA3C A 8 M14 x 1.5 51 17 17 7.2 4.5

VKA3/10LA3C A 10 M16 x 1.5 53 17 19 7.2 4.5

VKA3/12LA3C A 12 M18 x 1.5 53 17 22 5.8 4.5

VKA3/15LA3C B 15 M22 x 1.5 59 17 27 5.8 4.5

VKA3/18LA3C B 18 M26 x 1.5 59 17 32 5.8 4.5

VKA3/22LA3C B 22 M30 x 2 60 17 36 3.6 2.3

VKA3/28LA3C B 28 M36 x 2 64 17 41 3.6 2.3

VKA3/35LA3C B 35 M45 x 2 71 17 50 3.6 2.3VKA3/42LA3C B 42 M52 x 2 72 17 60 3.6 2.3

VKA3/06SA3C A 6 M14 x 1.5 50 17 17 10.1 9.1

VKA3/08SA3C A 8 M16 x 1.5 52 17 19 10.1 9.1

VKA3/10SA3C A 10 M18 x 1.5 53 17 22 10.1 9.1

VKA3/12SA3C A 12 M20 x 1.5 54 19 24 10.1 9.1

VKA3/14SA3C B 14 M22 x 1.5 59 17 27 10.1 9.1

VKA3/16SA3C B 16 M24 x 1.5 58 17 30 9.1 5.8

VKA3/20SA3C B 20 M30 x 2 65 17 36 9.1 5.8

VKA3/25SA3C B 25 M36 x 2 68 17 46 9.1 5.8

VKA3/30SA3C B 30 M42 x 2 74 17 50 6.0 5.8

VKA3/38SA3C B 38 M52 x 2 81 17 60 6.0 4.5

STANDARDPressure

(x 1,000 PSI)

GMetric

SW1(mm)

SW2(mm)

H REF.(mm)

TUBE FITTING PART #STEEL TYPE

D1 TUBE O.D. (mm)

* A product of Parker’s Quick Coupling Division.Contact QCD for performance data at (763) 544-7781or at www.parker.com/quickcouplings.



Orifice FittingsThese compact and cost effective orifice adapters allow OEMsto pre-set, at the factory, a specified orifice in specific hydraulictube or hose lines. Costly flow control valves can be eliminatedor minimized in a system by selecting the proper orifice sizesat the factory. OEMs can also be assured that end users are notadjusting the factory established flow and speed characteris-tics of the hydraulic system.

Features:• 37° flare and ORFS configurations as standard• Three standard body sizes available: 1/4" 3/8", and

1/2"

• Available in commonly accepted pre-set orifice sizesas shown on accompanying tables

• Designed for permanent or temporary installation

• Can be installed in-line into hydraulic system by simplyconnecting between hose swivel and adapter

• Orifice size is permanently stamped on body

• Additional differentiation can be provided as a customoption (special color plating, hex notch, etc.)

• Can eliminate costly flow control valves

• Standard construction consists of zinc yellow dichro-mate plated steel

• Custom orifice fittings available upon request inmultitudes of sizes, materials, configurations, andorifice sizes

Applications:• Fixed rotation speed for hydraulic motors• Fixed speed on cylinder extend or retract

Direct Port Orifice Fittings:

Available as a custom product, Parker also offers a line oforifice adapters that will replace a traditional port adapter.

XHX7 OrificeIn-Line Orifice Connector37° Flare / Female 37° Seat

LOHL6 OrificeIn-Line Orifice ConnectorORFS Swivel / ORFS

2

L

C

1

Orifice

Orifice

L

Orifice

12

C

Orifice

END SIZE1 & 2(in.)

Static-S

Dynamic-S

4 XHX7-S .015 Orifice 1/4 9/16 .015 1.10 10.0 5.0

4 XHX7-S .031 Orifice 1/4 9/16 .031 1.10 10.0 5.0

4 XHX7-S .047 Orifice 1/4 9/16 .047 1.10 10.0 5.0

4 XHX7-S .062 Orifice 1/4 9/16 .062 1.10 10.0 5.0

4 XHX7-S .078 Orifice 1/4 9/16 .078 1.10 10.0 5.0

4 XHX7-S .094 Orifice 1/4 9/16 .094 1.10 10.0 5.0

6 XHX7-S .015 Orifice 3/8 11/16 .015 1.18 10.0 5.0

6 XHX7-S .031 Orifice 3/8 11/16 .031 1.18 10.0 5.0

6 XHX7-S .047 Orifice 3/8 11/16 .047 1.18 10.0 5.0

6 XHX7-S .062 Orifice 3/8 11/16 .062 1.18 10.0 5.0

6 XHX7-S .078 Orifice 3/8 11/16 .078 1.18 10.0 5.0

6 XHX7-S .094 Orifice 3/8 11/16 .094 1.18 10.0 5.0

8 XHX7-S .015 Orifice 1/2 7/8 .015 1.32 8.5 5.0

8 XHX7-S .031 Orifice 1/2 7/8 .031 1.32 8.5 5.0

8 XHX7-S .047 Orifice 1/2 7/8 .047 1.32 8.5 5.0

8 XHX7-S .062 Orifice 1/2 7/8 .062 1.32 8.5 5.0

8 XHX7-S .078 Orifice 1/2 7/8 .078 1.32 8.5 5.0

8 XHX7-S .094 Orifice 1/2 7/8 .094 1.32 8.5 5.0

TUBE FITTING PART #

C HEX(in.)

ORIFICE(in.)

STANDARDPressure

(x 1,000 PSI)

L(in.)

END SIZE1 & 2(in.)

Static-S

Dynamic-S

4 LOHL6-S .015 Orifice 1/4 5/8 .015 1.33 12.0 9.2

4 LOHL6-S .031 Orifice 1/4 5/8 .031 1.33 12.0 9.2

4 LOHL6-S .047 Orifice 1/4 5/8 .047 1.33 12.0 9.2

4 LOHL6-S .062 Orifice 1/4 5/8 .062 1.33 12.0 9.2

4 LOHL6-S .078 Orifice 1/4 5/8 .078 1.33 12.0 9.2

4 LOHL6-S .094 Orifice 1/4 5/8 .094 1.33 12.0 9.2

6 LOHL6-S .015 Orifice 3/8 3/4 .015 1.44 12.0 9.2

6 LOHL6-S .031 Orifice 3/8 3/4 .031 1.44 12.0 9.2

6 LOHL6-S .047 Orifice 3/8 3/4 .047 1.44 12.0 9.2

6 LOHL6-S .062 Orifice 3/8 3/4 .062 1.44 12.0 9.2

6 LOHL6-S .078 Orifice 3/8 3/4 .078 1.44 12.0 9.2

6 LOHL6-S .094 Orifice 3/8 3/4 .094 1.44 12.0 9.2

8 LOHL6-S .015 Orifice 1/2 7/8 .015 1.67 12.0 9.2

8 LOHL6-S .031 Orifice 1/2 7/8 .031 1.67 12.0 9.2

8 LOHL6-S .047 Orifice 1/2 7/8 .047 1.67 12.0 9.2

8 LOHL6-S .062 Orifice 1/2 7/8 .062 1.67 12.0 9.2

8 LOHL6-S .078 Orifice 1/2 7/8 .078 1.67 12.0 9.2

8 LOHL6-S .094 Orifice 1/2 7/8 .094 1.67 12.0 9.2

TUBE FITTING PART #

STANDARDPressure

(x 1,000 PSI)C HEX(in.)

ORIFICE(in.)

L(in.)



Bleed AdaptersEntrapped air is a major contributor to inefficient opera-tion. Typically, bleeding hydraulic systems is done by“cracking” a connection to “bleed off” the entrapped air.This practice is not recommended, especially in largersize fittings where high forces can exist. Parker’s bleedadapters are especially beneficial in applications whereelastomeric seals (O-rings) can be extruded and/or dam-aged during bleeding such as with Parker’s Seal-Lokfittings.

Parker’s bleed adapters are designed specifically forinstallation directly to ORFS (O-Ring Face Seal) typefittings or into SAE/NPT manifolds and valves wherebleeding is often required.

Features• Bleed hydraulic systems without “cracking”

hydraulic connections• Uses standard automotive bleed screw design• Bleed screw is permanently crimped into body

housing, for blowout prevention• In-port options with SAE and NPT male studs• Tube/hose connection options to male and female

ORFS• Zinc Yellow Chromate plated steel construction

ORFS Bleed Adapters

LØ.30(ref)

3/8 HexH

F

L Ref.

Ø.30(Ref.)

3/8 Hex

ORFS Tube Nut

1

PNLOBA FNLBAORFS Tube Nut sold separately

Port Bleed Adapters

1

L (Ref.)

LL (Ref.)Ø .30(Ref.)

H3/8 Hex

Ø .30(Ref.)

L (Ref.)

LL (Ref.)

H3/8 Hex

1

4 P5ONBA 1/4 HPBA

Bleeding Hydraulic Systems with ParkerBleed Adapters

Whenever possible, the bleed adapter should be mounted at thehighest point within the hydraulic system. The trapped air can berelieved while the system is running at low pressure. To bleed,loosen the bleed screw 1/2 turn counterclockwise. After thehydraulic fluid begins to run freely from the bleed screw, the bleedscrew should be re-tightened.

Bleed Screw Tightening Torque: 35-40 in.-lbs.

Warning: When bleeding hydraulic fluid, operate the systembelow 500 psi. To avoid injury, ensure that all persons are clearof the path of discharge. Another recommended practice is toattach a section of hose over the bleed screw/adapter to direct oilaway from the area and to reduce oil spillage.

1

Seal-Lok Bleed Adapter(Sizes -8 thru -24)

For use withSeal-Lok Fittings

Straight Thread Bleed AdapterSize 4 (7/16-20 UNF)

For use with SAE StraightThread Ports

Pipe Thread Bleed Adapter1/4 NPT

For use with Pipe ThreadPorts

1)2)

1)

2)

2)

1)Notes:

1) Standard automotivebleedscrew.

2) Locking crimp preventsscrew from being completelyunthreaded.

END SIZE

1(in.)

Static-S

Dynamic-S

4 PNLOBA 1/4 - 11/16 1.90 12.0 9.2

6 PNLOBA 3/8 - 3/4 1.97 12.0 9.2

8 PNLOBA 1/2 - 7/8 2.07 12.0 9.2

10 PNLOBA 5/8 - 1 1/16 2.19 11.0 6.0

12 PNLOBA 3/4 - 1 1/4 2.27 11.0 6.0

16 PNLOBA 1 - 1 1/2 2.35 9.5 6.0

20 PNLOBA 1 1/4 - 1 3/4 2.41 8.0 6.0

24 PNLOBA 1 1/2 - 2 1/8 2.48 6.5 5.0

8 FNLBA 1/2 1.63 15/16 2.07 12.0 9.2

10 FNLBA 5/8 1.63 1 1/8 2.17 11.0 6.0

12 FNLBA 3/4 1.63 1 3/8 2.21 11.0 6.0

16 FNLBA 1 1.63 1 5/8 2.21 9.5 6.0

20 FNLBA 1 1/4 1.63 1 7/8 2.21 8.0 6.0

24 FNLBA 1 1/2 1.63 2 1/4 2.21 6.5 5.0

TUBE FITTING PART #

STANDARDPressure

(x 1,000 PSI)

F(in.)

L(in.)

H(in.)

END SIZE

1Static

-SDynamic

-S4 P5ONBA 7/16-20 UN/UNF-2A 11/16 11/16 2.05 1.62 10.0 6.0

1/4 HPBA 1/4-18 NPTF 11/16 11/16 2.20 1.86 10.0 6.0

STANDARDPressure


BODYHEX(in.)

L REF.(in.)

LL REF.(in.)

H(in.)



0109Parker Triple Thread FittingNPTF / PTT

LLL

2

C

1

Parker Triple Thread (PTT)Adapters

Parker Triple Thread (PTT) adapters are considered theoriginal three-piece hydraulic flared fittings. The connec-tion was pioneered by Aurther Parker, the founder of ParkerHannifin Corporation, as an improved fitting design overtraditional two-piece flared fittings. Its use was widespreadas a primary hydraulic connection for various aircraft, indus-trial and mobile applications. The PTT 30° flare three-piecedesign paved the progress towards the standardized 37°connection (through the Joint Industrial Council – JIC) andlater to current standardization initiatives of SAE and ISO.Its popularity has been diminished by the more commonand standardized 37° flare connection, but even todaycertain transportation customers utilize PTT hose adaptersfor OEM and MRO applications.

Features:• 30° flare connection• Hose adapter connection only (no sleeve for tube

connections)• Metal-to-metal seal• SAE 12L14 steel with zinc yellow dichromate Parker

plating and friction control system• Four 0109 PTT sizes available as standard• Custom sizes, configurations, and materials avail-

able upon request

Applications:

• Diesel engine manufacturers• Transportation air conditioning lines

Mates with Parker Hose Products Division “32” swivel endconfiguration in 20 and 22 Series fittings.

0109 Adapter “32” Series (PTT)Hose Swivel

1(in.)

2NPTF S SS B

0109-12-16 1 (1 5/16-14) 3/4-14 1 3/8 1.84 1.36 3.0

0109-16-16 1 (1 5/16-14) 1-11 1/2 1 3/8 2.03 1.46 3.0

0109-20-20 1 1/4 (1 5/8-14) 1 1/4-11 1/2 1 3/4 2.22 1.63 3.0

0109-24-24 1 1/2 (1 7/8-14) 1 1/2-11 1/2 2 2.50 1.91 3.0

LL AFTER ASSY (in.)

END SIZE

STANDARDDynamic Pressure


C HEX (in.)

L (in.)

Documents

Diagnostic, Orifice, Bleed Adapters & Specialty Fittings · • Additional 20 sizes available in 24° flareless/metric ... • Where port threads are not compatible with ... 4300