Pneumatic piston O type shut-off ball valve 1.DN15~DN400 2.PN16,25,40,64 ANSI150,300, ... can balance thepressure in the valve and protect the seatl Main technical data ModelPC2510Pneumatic piston O type shut-off ball valveDN(mm ... °C (Note: If the working temperature of accessories such as solenoid valve is lower than this temperature, the lowest working ambient temperature ...