High-Pressure Back Pressure Regulators

Equilibar’s Research Series back pressure regulators (BPRs) offer precision performance for high-pressure applications up to 10,000 psig / 689 bar(g). Equilibar high pressure regulators are designed in standard low flow models for applications such as high pressure reactors, and in ultra-low flow models for applications such as high pressure core testing. They provide precise and stable control for liquid, gas, and mixed phase fluids.

Equilibar now has a new Ultra Low Flow BPR rated to 20,000 psig / 1375 bar(g), called the U20L, that is integrated into DCI Test Systems ABPR-20.

The BPR shown at right, the H10P, is rated for 10,000 psig / 689 bar(g). Because Equilibar regulators are dome-loaded, a pilot setpoint reference pressure is required on the dome reference port equal to the desired inlet pressure (1:1 ratio). This pilot setpoint is typically supplied from high-pressure inert gas bottles, such as nitrogen. Customers generally use a manual pressure reducing regulator to control this reference setpoint, but there are other ways to pressure load the dome of an Equlibar BPR. 

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