Balanced Bellows Back Pressure Safety Valve

Model: WA42Y
Nominal Diameter: DN15-DN350
Nominal Pressure: 1.6MPa-4.0MPa
Connection: Flange
Medium: Toxic flammable or corrosive medium.

As over-pressure safe protected devices, balance bellows back pressure safety valves are suitable for equipment or piping systems of the working temperatures=300℃ , and  which systems exist back pressure changes, toxic flammable or corrosive medium. Using bellows, it can balance the back pressure of safety outlet, and ensure the accuracy of setting pressure.