... the valve and protect the seatl Main technical data ModelPC2510Pneumatic piston O type shut-off ball valveDN(mm)DN15~DN400 (please ... )PNPN16,25,40,64ANSI150,300,400Actuator typesRT or hsAW pneumatic piston double (or single) action actuator(without or with spring return ... (304,316L)+STL overlaying seat-60~+500°CRated stroke0-90°rotary angleAmbient temperature-20~80°C (Note: If the working temperature ...