Equilibar high pressure gas regulator

Pressure Reducing Regulators
Air and inert gases

Pressure Reducing Regulators are the most common type of regulator. They reduce an unregulated inlet pressure to the desired regulated outlet pressure (learn more).

Equilibar now offers the HPR High Pressure Gas Regulator for low flow applications such as research and laboratories. This regulator is also ideal for providing set-point pressure for our precision back pressure regulators.

For pressures below 150 psig, Equilibar represents precision Pressure Reducing Regulators from Marsh Bellofram.

For computer automation, we also represent precision electronic pressure regulators from Proportion-Air.

To complement our line of low pressure back pressure regulators, we offer the Equilibar® LPR2 Ultra Low Pressure Regulator with the lowest pressure range available in its class.

Contact our engineers for assistance in selecting the ideal Pressure Reducing Regulator for your application.


Pressure Reducing Regulators
Equilibar Pressure Reducing Regulator 0.5 - 8 inWC

zinc body
LPR2: Ultra Low Pressure Regulator
  • Lowest pressure range available in its class
  • For low-flow or no-flow applications only
  • Extremely sensitive and stable
  • For air and inert gases*
LPR2 details
Equilibar high pressure gas regulator 0-500 psig
up to
50-6000 psig
HPR 30 Series: High Pressure Gas Regulators
  • Low flow for precision laboratory & research applications
  • Self-venting through bonnet for convenient pressure control
  • Wide range of pressures, up to 6000 psig
  • Brass units units in stock for quick delivery
HPR Details
Marsh Bellofram Type 10 0.5 - 25 psig
up to
120 psig

Bellofram Type 10
  • Incredible 0.1% accuracy
  • Stable across varying flowrates and supply pressures
  • For air and inert gases*
Type 10 brochure
Marsh bellofram Type 41 0-2 psi
up to
0-100 psi

cast aluminum
Bellofram Type 41
  • Designed for high flow, low droop, high accuracy, and fine adjustment sensitivity.
  • Incorporates rolling diaphragm technology
  • For air and inert gases*
Type 41 brochure
Proportion Air Electronic Pressure Regulator 0-0.3 psi
up to
0-1000 psi

No flow to 40 scfm
Proportion-Air Electronic Pressure Regulators
  • Tight pressure control to 0.25% accuracy
  • Control using internal and/or external sensors
  • Easy computer automation of process pressure
  • Command input: 4-20 mA or 0-10 VDC
  • Serial DeviceNet also available
Proportion-Air EPR Details
Compact Filter Regulator 0-100 psi


Compact Filter Regulator
  • Compact, economical protection for precision regulators downstream
  • Filters incoming gas and allows for moisture drop-out
  • Maintains stable input to improve downstream regulator performance
  • Maximum inlet pressure: 150 psig

* Note: All regulators listed are designed for Air service and have a small but significant weep to the atmosphere (see brochure for details). Customers may consider adapting one of these air regulators for inert gas service provided they deploy the devices in a well ventillated space and are technically competent to analyze all the potential risks associated with the installation.

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