The physical operating limits of safety valves for certain service requirements can be exceeded by installing the IMI Bopp & Reuther PC 50 Pneumatic Control Unit .

In addition to the safety valve spring, the controlled safety valve is equipped with a pneumatic cylinder piston that controls the opening and closing of the valve according to the indications of the Control Unit.

The PC50 control unit works according to the closed-loop principle, that is, the air charges discharge upon reaching the set pressure.

5 piston sizes available and combinable with all safety valves from DN 25 (1 ") to DN 400 (8")