Cryogenic final line regulator for sensitive equipment

These regulators are final line pressure regulation units that decrease pressures to suit different devices and are compatible with a variety of cryogenic gas operations in medical or industrial applications.

Final line pressure regulator model 1784

Product description

2nd stage regulators, as they are also called, are great for adjusting the pressure further down the line to a usable level in pressure sensitive equipment.

icon 3 squares in front of eachother symbolising material


Body: Forged brass
Bonnet: Die cast nickel plated aluminium, forged brass
Spring: Stainless steel
Seat disc: Viton
Diaphragms: Nitrile (PTFE liner)

icon a gear with lines going up down left and right symbolising specifications


Gas types: Propane, Helium, Hydrogen, NG (Natural Gas), Argon, CO2 "E", Nitrous oxide "E", Oxygen, medical Oxygen
Connections: Thread
Types: NPT
Pressure range:
Inlet: Max. 34 bar (500 psi)
Outlet: 0.3 to 27.5 bar (1 to 400 psi)
Capacity: 20,000 to 30,000 SCFH (568 to 852 SCMH)
Temperature range: -40˚C to +74˚C> (-40˚F to +165˚F)
Sizes and range: 1/2" to 1" 
Series: 1780 series and GDR series
Standards: PED, ASME, CRN, SEP

*Materials and specifications are subject to generalisation. Our experienced people are ready to help you find the correct fit for your application. 

icon a magnifying glass over a gear symbolising features


  • High capacity with sensitive control of delivery pressure with low falloff
  • Cleaned and packaged for oxygen per CGA G-4.1
  • T-handle adjusting screw
  • Two delivery gauge ports on each side of valve
  • Two bonnet drain/vent holes to allow for different mounting orientation
  • 100% factory tested

Did you know?

Not compatible for liquid use

For Carbon Dioxide or Nitrous Oxide service: Specify EPDM, add "E" to end of number

Same construction as the premium BR-1780 series

Get in touch!

Whether you already know what you need, or you would like the opinion of an expert, we are always ready to help you out.