Marsh Bellofram Pressure Reducing Regulators

Pressure Reducing Air Regulators

May be used in certain Inert Gas applications*

Pressure Reducing Regulators are the most common type of regulator. They reduce an unregulated inlet pressure to the desired regulated outlet pressure. (read difference between Pressure Reducing and Back Pressure Regulators).

While Equilibar represents precision Pressure Reducing Regulators from Marsh Bellofram for air and inert gases. For Marsh Bellofram's Electro-Pneumatic regulators, click here.

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.

At the present time, Equilibar does not offer Pressure Reducing Regulators for liquids or process gases. See notice below concerning use for gases other than air.

Contact Equilibar 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
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.