Back Pressure Valve

Electric Back Pressure Valve

The electric back pressure valve is composed of an electric actuator and a back pressure valve, which are assembled, debugged, and installed through mechanical connections. The actuator has a feeding function and accepts a unified 4-20mA or 1-5V·DC standard signal. It converts the current signal into a corresponding linear displacement and automatically controls the opening of the back pressure valve spring. By changing the cross-sectional area between the spring and the valve seat, it continuously adjusts the process parameters of pressure, flow, temperature, liquid level, and other fluids in the pipeline to achieve automatic control.

Technical Specifications of Electric Back Pressure Valves:

Working voltage: DC24V, AC220V, AC380V, etc.

Input control signal: DC4-20MA or DC1-5V.

Feedback control signal: DC4-20MA (load resistance impedes below 500 ohms).

Interface size: 1/8" - 6".

Maximum control pressure: piston type: 31.5MPA; diaphragm type: 2.5MPA.

Operating temperature: -60℃~300℃ (customizable) and can be equipped with insulation jacket.

Connection method: Inlet and outlet interface can be flange, thread, etc.


Valve body material can be customized: PVC, PVDF, PP, stainless steel, Hastelloy alloy, Monel alloy, etc.

Diaphragm material: PTFE, metal.

O-ring sealing material can be chosen from: fluororubber, perfluoroether rubber, encapsulated fluorine, etc.

Seal gasket material can be chosen from: PTFE, fluororubber, perfluoroether rubber, PEEK, etc.

Product Description

Design features of Electric Back Pressure Valve:

  • Compact structure, small size, and powerful functions.

  • Equipped with multi-turn electric actuators as standard, and can also be equipped with straight-stroke electric actuators.

  • The type of back pressure valve can be selected according to the adjustment pressure and can be membrane type or piston type.

  • Can accept standard signals of 4-20mA or 1-5V·DC, and realize automatic control function.

  • The valve body material can be selected, including PVC, PVDF, PP, stainless steel, Hastelloy, Monel, etc.

  • Can be equipped with insulation jacket, suitable for working temperature of -60℃~300℃.

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