Ralston Quick-connect Adapters

Ralston Quick-connect Adapters use a moving piston that pushes against the part it is connected to when pressure is applied. These adapters will allow you to spend more time calibrating and less time looking for leaks (saving you time and money).

  • Make a connection without the need for thread sealant or a wrench. 
  • Pressure helps to seal the fitting better. 
  • Stainless steel construction
  • 5000 PSI working pressure
  • Made in USA

Female Quick-Connect Adapters

Adapt a range of standard male connections including BSPP and Metric sizes to male Ralston quick-test connections without the need for thread tape or wrenches on either side.

NPT Female Quick-connect Adapters

  • Connect to a to a pressure gauge, calibrate it and disconnect from the gauge, all without thread sealant or a wrench.
  • Allows the user to position the pressure gauge for easy calibration

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BSPP Female (RG) Quick-connect Adapters

  • Connect directly to the bottom of BSPP (ISO 228/1) pressure gauges without a bonded seal or crush washer
  • A unique design allows connection to any male BSPP connections using a pressure-assisted O-ring that seals on the bottom of a pressure gauge

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37 degree Flare (AN) Quick-connect Adapters

  • Connect to a standard male 37 degree flare fitting without a wrench. 
  • Whether it is in military, marine or aerospace applications, AN fittings are very popular.
  • Has just been updated to include -4, -6 and -8 sizes as well!

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Metric Female Quick-connect Adapters

  • Connect to male metric threaded pressure gauges easily and without a wrench or thread sealant making pressure calibration a snap.
  • A unique design allows connection to any male metric connections using a pressure-assisted O-ring seal against the bottom of a pressure gauge

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Male Quick-Connect Adapters

Make a bubble-tight seal on any Female NPT pressure device without using thread sealant or a wrench.

NPT Male Quick-connect Adapters

  • Make a bubble-tight seal on any Female NPT pressure device without the need for thread sealant or a wrench. 
  • Used to connect to pressure transmitters, chart recorders, flow computers etc.
  • Have just been expanded to include 3/8" and 1/2" NPT.

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37 degree Flare (AN/JIC) Male Quick-connect Adapters

  • Connect to male AN flare connections without the need for thread sealant or a wrench. 
  • Excellent for military, marine or aerospace applications.
  • Has just been updated to include -4, -6 and -8 sizes

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Quick-test CGA 580 Cylinder Valve Adapters

  • Connect to any CGA 580 cylinder valve without the need for thread sealant or a wrench.
  • Use when filling multiple gas bottles

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Contact your local Ralston Distributor for sales information

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