Ralston Block and Bleed Valves Make Your Gas Last Longer

Block and bleed valve for calibration

Keep Gas in the Tank

  • Conserve compressed gas by venting only the gas that needs to be vented in a device under test and nothing more…….
  • Brass and Stainless Steel, 3000 psi & 5000 psi working pressure
  • NPT, male & female quick-test fittings

Ralston Block and Bleed Valves are an excellent accessory for doing pressure calibration with a Ralston Volume Controller, Nitropak, Calibration Manifold or other calibration device. This unique valve helps conserve compressed gas by venting only the gas that needs to be vented in the device under test (DUT) and nothing more. When connected to the end of the hose closest to the device under test (DUT), the Ralston Block and Bleed Valve allows the user to block pressure from the nitrogen control device and vent only the pressure in the DUT. This configuration conserves the gas in the nitrogen control device. By conserving the gas in the hose and the nitrogen control device, the bottle pressure stays higher longer. This reduces the number of times the compressed gas cylinder needs to be filled or replaced and helps get the job done quicker. Ralston Block and Bleed Valves are available in brass and stainless steel and with a variety of end connections.

Watch the video demo of Ralston Block and Bleed Valves

JM Test Systems® rents Ralston hand pumps and sells Ralston fittings for all your measurement and calibration solutions.

The fittings used in this video are the QTHA-BLB0-2F-2F, QTHA-BLS0-2F-2F, QTHA-BLB0-1F-1F, QTHA-BLB0-HC, QTHA-BLS0-HC, QTHA-BLB0-HH, QTHA-BLS0-HH
Call us for a quote today at 800-353-3411

block and bleed valve