High Pressure Back Pressure Regulators

Research Series Back Pressure Regulators for High Pressure

Equilibar’s Research Series back pressure regulators offer precision performance for high pressure applications up to 10,000 psig / 689 bar(g). These regulators provide stable inlet pressure across widely varying flow rates, for liquid, gas, and mixed phase fluids. In addition, Equilibar offers the EPR-3000, a high pressure electronic controller that provides automation solutions for applications involving pressures up to 3000 psig / 206 bar(g).

For Research Series regulators, diaphragms of Stainless Steel 316, Polyimide, PEEK, and Hastelloy are suitable for the high pressure range.

The back pressure regulator shown at right, the H10P, is rated for 10,000 psig / 689 bar(g). Like all Equilibar back pressure regulators, it requires a 1:1 fluid set-point on the top reference port. This high pressure pilot pressure is typically supplied from high pressure inert gas bottles, such as nitrogen. Customer typically use a manual pressure reducing regulator or a high pressure electronic pressure regulator to control this set-point pressure.

Get product details for high pressure BPRs from Research Series Brochure.

Maximum Pressure,
psig / bar(g)
Standard Multi-Orifice
Single Orifice
1000 psig
68 bar(g)
3000 psig
206 bar(g)
6000 psig
413 bar(g)
10,000 psig
689 bar(g)
H10P U10L

For port sizes larger than 1/4″, see our GS Series products, which are available up to 3000 psig / 206 bar(g).

Because our technology is dome-loaded, a set-point reference pressure is required on our reference port equal to the desired inlet pressure (1:1). Equilibar sells both manual regulators (up to 5000 psig / 344 bar(g)) and electronic pressure regulators (up to 3000 psig / 206 bar(g)) to provide the set-point for these high pressure applications.

Equilibar's back pressure regulators offer high precision in demanding applications.

Equilibar’s back pressure regulators offer high precision in demanding applications.



EHP 10,000 psig / 689 bar(g) extra high pressure back pressure regulator
The H10P and U10L series are rated for 10,000 psig / 689 bar(g) service.




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