Parker RF Series Pneumatic Couplings | General Purpose - Push-to-Connect

Parker RF Series Pneumatic QC

Parker RF Series couplings are an aerodynamic valve design with a wide range of port options available.

Flow area of the RF Series nipple is up to 2 1/2 times larger than industrial interchange nipples. Flow rates on 1/4" are greater than many 3/8" body size couplers. Flow rates on 3/8" are greater than 1/2" body size couplers.

RF Series coupler sleeves are nickel-plated steel and coupler bodies are solid brass construction for excellent corrosion resistance. Standard RF nipples are manufactured from solid steel bar stock, which are case hardened and Chromium-6 Free plated.

Rf Series interchanges with a common high-flow European interface.

Standard seals are nitrile. Optional materials are available - contact us with questions.


RF Series QC Dimensions & Specifications:

Choose another GP - Push-To-Connect QC
Choose another Pneumatic QC
Go back to Product Overview


Sleeve type couplings, such as Parker RF Series, are widely used to connect air lines. Parker RF Series Couplings can also be used with low pressure fluids.

RF Series has been designed to increase the flow-through, and reduce the pressure-drop over the coupling. This, along with a specially designed coupler valve, allow tremendous flow through a coupling with an envelope size of current couplings.

The benefits of the RF Series couplings to the end user are increased tool efficiency, and decreased air costs.

Common applications: compressed air, water, grease, paint, limited vacuum and limited gases.

Parker RF Series Couplings Specifications & Performance


Body Size (in.) 1/4 3/8
Rated Pressure (psi) 300 300
Temperature Range (std seals) -40° to +250°F -40° to +250°F
Locking Device 4 balls 8 balls
Vacuum Data (inches Hg) Disconnected (coupler only) Connected Not Recommended
Not Recommended
Not Recommended
Not Recommended


Parker RF Series QC Pressure Drop Chart


RF Series Couplings Features

  • Aerodynamic valve design
  • Up to 2.5 larger flow area than industrial interchange nipples
  • 1/4" RF coupling flow rate greater than many 3/8" couplers
  • 3/8" RF coupling flow rate greater than many 1/2" couplers
  • RF coupler sleeves are nickel plated and coupler bodies are solid brass - excellent rust protection
  • Standard RF nipples are solid steel bar stock, case hardened and Chromium-6 Free plated
  • Ball locking mechanism allows swiveling action while connected - reduces hose twist
  • Push-to-connect for one-hand connection
  • Sleeve guard protects against accidental disconnect

Orders & Quotes



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