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.

More

 

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

Tony Tang gives presentation at ISA Symposium

Reflections on Singapore's ISA Analysis Division Symposium

In September Equilibar’s engineering manager, Tony Tang, traveled to Singapore to attend the ISA Analysis Division Symposium. The trip was a great opportunity to work with our partners at Practical Analyzer Solutions and to meet several key clients face to face for the first time. Singapore is known for its successful blending of diverse cultures Read More

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