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Hydraulic Quick Disconnects | Parker

parker-hydraulic-qc Skip to Hydraulic QC Selection

Parker hydraulic couplings are available in a wide variety of designs, each tailored to a particular application. Each Parker hydraulic coupler generally falls into one of two groups: Double Shut-Off coupling or Straight-Thru coupling.

Parker Hydraulic Double Shut-Off couplings

Parker Hydraulic Double Shut-Off couplings are used extensively when it is important to minimize fluid loss upon disconnection. Both halves of the coupler, the body, and the nipple, contain shut-off valves. These valves open automatically when the body and nipple are connected, and close automatically when the two halves are disconnected, keeping fluid loss to a minimum.

Parker Hydraulic Straight-Thru couplings

Parker Hydraulic Straight-Thru couplings have no valves in either half and are ideal for maximum flow application. Their smooth, open bore offers the lowest pressure drop of any quick disconnect coupling and allows them to be thoroughly cleaned. Since there are no valves in either half, the fluid flow should be shut off before the coupling is disconnected.

Parker Hydraulic Quick Coupler Selection

Hydraulic
Coupler

Valve

Body
Size
(in)

Material*

Locking
Mechanism

Stdandard Seal
Material**

Temp
Range**
(°F)

Rated
Pressure

(PSI)

Br

S

S3

S6

GENERAL PURPOSE

60 Series

Poppet

1/8 - 2 1/2

●

●

●

●

Ball

Nitrile

-40 to +250

800 - 5000

60 Series Steam

Poppet

1/4 - 1

●

 

 

 

Ball

Ethylene Propylene

-65 to +400

 

6600 Series

Poppet

1/4 - 1

 

●

 

 

Ball

Nitrile

-40 to +250

4000 - 5000

SM Series

Poppet

1/4 - 3/4

 

●

 

 

Ball

Nitrile

-40 to +250

4500 - 6000

HP Series

Poppet

1 - 1 1/2

 

●

 

 

Ball

Nitrile

-40 to +250

5000

4000 Series

Poppet/Ball

1/4 - 1

 

●

 

 

Ball

Nitrile

-40 to +250

3000

4200 Series

Poppet/Ball

3/8 - 1/2

 

●

 

 

Ball

Nitrile

-40 to +250

3000

Non-Spill

NS Series

Flush Face

3/8 - 1

 

●

 

 

Ball

Nitrile

-40 - +250

2500

Adapters

Flush Face/Poppet

1/2

 

●

 

 

Ball

Nitrile/Polyurathane

-40 - +250

3000 - 3625

FF Series

Flush Face

1/4 - 1

 

●

 

 

Ball

Nitrile/Polyurathane

-40 - +250

3000 - 5000

FEM Series

Flush Face

1/4 - 1

 

●

 

 

Ball

Nitrile/Polyurathane

-40 - +250

3000 - 5000

FS Series

Flush Face

1/4 - 1

 

 

 

●

Ball

Fluorocarbon

-15 - +400

2000

Non-Spill Connect Under Pressure

FC Series

Flush Face

3/8 - 3/4

 

●

 

 

Ball

Nitrile/Polyurathane

-40 - +250

3000

FEC Series

Flush Face

1/2 - 3/4

 

●

 

 

Ball

Nitrile/Polyurathane

-40 - +250

3000

6100 Series

Flush Face

3/4 - 1 1 /2

●

 

 

 

Threads

Nitrile

-40 - +250

2000 - 3000

FET Series

Flush Face

5/8 - 1 1 /2

 

●

 

 

Threads

Nitrile/Polyurethane

-30 - +240

6000

Connect Under Pressure

8200 Series

Poppet

1/2

 

●

 

 

Ball

Nitrile

-40 - +250

3000

9200 Series

Poppet

1/2

 

●

 

 

Ball

Nitrile

-40 - +250

3000

5000 Series

Ball

1/2

 

●

 

 

Threads

Nitrile

-40 - +250

2500

High Pressure

FH Series

Flush Face

3/8

 

●

 

 

Ball

Nitrile

-40 - +250

10,000

3000 Series

Ball

1/4 - 3/8

 

●

 

 

Threads

Polyurethane

-22 - +230

10,000

TC Series

Poppet

3/8

 

●

 

 

Ball

Fluorocarbon

-15 - +400

10,000

1141 Series

Poppet

1/4

 

 

●

 

Threads

Polyurethane

-40 - +180

10,000

Mold Coolant

Moldmate

Valved & Unvalved

1/4 - 1/2

●

 

 

 

Ball

Silicone

-20 - +400

200

High Flow (Straight-Through)

ST Series

Unvalved

1/8 - 1 1/2

●

●

●

 

Ball

Nitrile

-40 - +250

2500 - 6700

HO Series

Unvalved

1/4 - 1/2

 

●

 

 

Ball

Nitrile

-40 - +250

10,000 - 15,000

Water Service

Unvalved

3/4

●

 

 

 

Ball

Nitrile

-40 - +250

200

Miniature

DM Series

Poppet

1/8

●

 

 

 

Ball

Fluorocarbon

-15 - +400

250

* Material Code: Br = Brass; S = Steel; S3 = 303 Stainless Steel; S6 = 316 Stainless Steel
** Optional seals available - see below. Temperature range depends on seal material used. Please see the Fluid Compatibility Chart for more details on seal material suitability for fluid and operating temperature requirements.

Optional Seal Material for Parker Hydraulic Quick Disconnects

Optional
Seal Material		 Optional Seal Availability
(Coupler Series)

Ethyl Propylene

60, 6600, 4000, 4200, 6100, 5000, 8200, 9200, ST
SM, HP, NS, FF, FEM, FH, FS, HO

Fluorocarbon

60, 6600, 4000, 4200, 6100, 5000, 8200, 9200, ST, Moldmate (Only with oil based media)
SM, HP, NS, FF, FEM, FH, FS (Standard), HO, TC (Fluorocarbon only-no suffix needed)

Neoprene

60, 6600, 4000, 4200, 6100, 5000, 8200, 9200, ST
SM, HP, NS, FF, FEM, FH, FS,HO

Perfluoroelastomer

SM, HP, NS, FF, FEM, FH, FS (Contact us about Perfluoroelastomer options)
3000 and 1141 with Polyurethane only (no suffix needed)
Water Service (Nitrile only)

 

 

NEW! 6000 psi Non Spill QC

Parker Introduces FET Series Couplings.

Parker FET Series Non Spill QC

  • Working pressure up to 6000 psi
  • Connect under residual pressure up to 5000 psi
  • Disconnect under residual pressure up to 2500 psi
  • Interchanges with Stucchi VEP and similar European thread-to-connect couplings

QC Selection Tips

When ordering quick couplers, consider the following:

  • Functional requirements of the coupling
  • Maximum working pressure of the application
  • Coupler seal & body material compatibility with the system’s fluid
  • Is the application static or dynamic?
  • Size of coupler & hose
  • Maximum allowable pressure drop
  • Requirement to connect & disconnect under pressure
  • Media temperature
  • Ambient temperature
  • End configuration requirements
  • Need for industrial interchange QC
  • Effects of air inclusion & fluid loss

Hydraulic QC Selection

  • Double Shut-Off QCs
  • Straight-Through QCs
  • General Purpose QCs
  • Non-SpillQCs
  • Connect Under PressureQCs
  • High Pressure QCs
  • High Flow QCs
  • Mold Coolant Line QCs
  • Miniature QCs (DM Series)

Working Pressure

Working pressure of Parker hydraulic couplings range from 30 to 15,000 PSI. Pressure rating of Parker hydraulic quick couplings are defined by ISO 5598, as “the qualified operating pressures which are recommended for a component or a system by the manufacturer.” Parker QC “Rated Pressures” have been established on the basis of laboratory tests which include, but are not limited to, static burst tests and multiple cycle impulse tests. System characteristics such as high cycling rates and high amplitude shocks either hydraulic or mechanical, can reduce the functioning life of a coupling, even if the system’s nominal pressure falls within the rated pressure range of the coupling.