Equilibar back pressure valves have a unique design that offers lightning fast response and precision control. By using a frictionless diaphragm, multiple orifices and dome-loaded design, Equilibar high flow valves will maintain a precise pressure across a very wide range of flow rates.
IC Series
High Flow / Medium Pressure Valves
Line size 1½” to 2″ – SS316
Maximum Pressure of 300 psig / 21 bar(g)
Maximum Cv of 60
BD Series
High Flow / Medium Pressure Valves
Line size 1½” to 4″
SS316, PVC or PVDF
Maximum Pressure of 400 psig / 27 bar(g)
Maximum Cv of 160
HV Series
Maximum Flow / Low Pressure Valves
Line size 2″ to 6″
Available in SS304 & SS316
Maximum Pressure of 10 inWC
How it Works
Equilibar back pressure valves function by using a compressible gas setpoint on their dome. They are “ dome-loaded”. 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
- More about backpressure valves – how they work
- Using back-pressure valves to control pump pressure
- Compare back pressure valves to traditional control valves.
- Case Study: Using a backpressure valve to control biogas from digestor
- What is a back-pressure valve or back-pressure regulator ?
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.
