Self-operated(before valve) Pressure Control Valve

The 30D02Y、30D02Rself-operated(before-valve) pressure control valveis composed of the control valve,actuator and a spring used for pressuresetting.
It is suitable for controlling before-valve pressure in the pipes of non-corrosive liquids, gases and steams.
When the before-valve pressure rises,the control valve is opened.
The main features are as follows:
1.It has the pressure balancing functionwith high sensitivity.
2.Low noise, reliable performance, freeof maintenance
3.The standard modular design isadopted.
4.Various combined controls can becarried out through the assemblies.