Parker | Pneumatic Quick Disconnects

Quick couplers | Parker Pneumatic QC Selection

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Pneumatic quick couplers (also referred to as air couplers, or pneumatic quick disconnects), are primarily used for pneumatic applications, connecting air tools, hoses, or other implements to compressed air supplies. They are also used with other gases, and (with the exception of the E-z-mate Series) can be used with low pressure fluids.

The coupler half contains a shut-off valve that is automatically opened when a mating nipple is inserted and automatically closes when the nipple is removed.

Parker pneumatic couplings come in three basic designs: general purpose/manual connect, general purpose/push-to-connect, and special purpose.

The standard seal material for all Parker single shut-off couplers is Nitrile. Ethylene Propylene, Fluorocarbon, and Neoprene seals are available as options. Please consult the comprehensive Fluid Compatibility Chart for more information on seal and body material selection – or contact us for further assistance in selecting the appropriate seal material.

Pneumatic Quick Coupling Selection

 Series Coupler
Interchange Body
Size (in.)
Material1 Locking
Std. Seal
Std. Seal
Temp Range
GENERAL PURPOSE – Manual Connect
10 Series Manual Tru-Flate 1/4 to 1/2     Ball Nitrile -40° to +250° F 300 PSI
20 Series2 Manual Industrial 1/4 to 1/2   Ball Nitrile -40° to +250° F 300 PSI
50 Series Manual ARO 210 1/4     Ball Nitrile -40° to +250° F 300 PSI
70 Series Manual Lincoln
(long stem)
1/4       Ball Nitrile -40° to +250° F 300 PSI
RF Series Push to Connect Common High-Flow European Interchange 1/4 & 3/8     Ball Nitrile -40° to +250° F 300 PSI
HF Series Push to Connect Industrial 1/83
to 1/2
    Ball Nitrile -40° to +250° F 300 PSI
30 Series Push to Connect Industrial 1/4 to 3/4       Pawl Nitrile -40° to +250° F 300 PSI
HA Series Push to Connect ARO 210 1/4       Ball Nitrile -40° to +250° F 300 PSI
Twist Lock Push to Connect Schrader 1/4 to 1/2     Cam Nitrile -40° to +250° F 300 PSI
Universal Push to Connect Industrial
ARO 210
1/4       Ball Nitrile -40° to +250° F 150 PSI
E-z-mate Series Exhaust/
Push to Connect
Industrial 1/4 to 3/4       Ball Nitrile -40° to +250° F 300 PSI
Tool-Mate Series Push to Connect/
Exhaust & Std
Industrial &
and RF
1/4 to 1/2     4 Fingers Nitrile -40° to +250° F 300 PSI
1 Material Code: B = Brass; SS = Stainless Steel; S = Steel; P = Plastic
2 20 Series Stainless Steel available in 1/4" body
3 1/8" couplings have no standard industry interface.
4 Tool-Mate metal end ports are Galvanized Steel.


Coupling Material


  • Prefix "B" for Brass - available for 3/8 & 1/2" body sizes.
  • Suffix "N" for Stainless Steel springs, locking balls, an dbrass valves - available for 10, 20, 30, 50, and 70 Series.


  • Prefix "B" for Brass (Standard material is Steel).

Optional Seals

To select proper seal materials, see Fluid Compatibility Chart in Technical section, or contact us with questions.

Material Suffix Temperature Range
Ethylene Propylene
-65°F to +400°F
-30°F to +400°F

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

If several different series of couplings are being used in your plant or shop, consider using Industrial Interchange Nipples. Industrial Interchange Nipples work with the following couplers: Parker 20 Series, Parker HF Series, Parker 30 Series, Parker Universal Couplers, and Parker E-z-mate Series.

Parker Industrial Interchange nipples are also interchangeable with similar nipples manufactured by other quick disconnect manufacturers conforming to A-A-59439 (formerly known as MIL-C-4109F), ANSI/(NFPA) T3.20.14-1990, or ISO6150-B requirements.