Industrial Back Pressure Regulators for High Flow from Equilibar

Back Pressure Valve for High Flow

Larger sizes - from 1.5" to 4" - Low to Medium Pressure

Equilibar offers a unique back pressure valve that offers lightning fast response. By using a friction-less diaphragm and dome-loaded design, precision can be maintained across a very wide range of flow rate.

NLB Series Back Pressure Valve

BD Series
High Flow / Medium Pressure Valves
Line size 1½” to 4″
SS316, PVC or PVDF
Maximum Pressure of 1000 psig / 69 bar(g)
Maximum Cv of 160

HV Series Back Pressure Valve

HV Series
Maximum Flow / Low Pressure Valves
Line size 2″ to 6″
Available in SS304 & SS316
Maximum Pressure of 15 psig / 1 bar(g)
Maximum Cv of 320

How it Works

Equilibar’s back pressure valves function by use of a compressible gas set-point on their top pilot port. For example, if you want to control 100 psig / 69 bar(g) on the inlet port of the valve, simply apply a 100 psig / 6.9 bar(g) set-point of air or other gas to the dome.

The frictionless diaphragm blocks flow in the lower position until the inlet pressure rises to raise the diaphragm.

Unlike traditional back pressure valve designs, the unique Equilibar can respond to severe system fluctuations within milliseconds.

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The HV Series Back Pressure Control Valve controls pressure directly by matching the inlet pressure to the pilot pressure level.

Equilibar’s unique back pressure valve uses multiple orifices that serve as distributed valve seats. The flexible diaphragm lifts to allow flow, but only enough to maintain the desired back pressure on the valve inlet.

Equilibar News

dome loaded regulators in water technology

Equilibar’s Jeff Jennings shares his expertise on dome loaded regulators in Water Technology Magazine

The May/June issue of Water Technology Magazine features a six-page article by Equilibar founder Jeff Jennings that provides an overview of dome loaded regulators. The article compares dome-loaded technology to traditional spring-loaded technology. It also explains the differences between a pressure reducing regulator and a back pressure regulator. “Over the years we’ve learned that there Read More

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