... DN400 2.PN16,25,40,64 ANSI150,300,400 Pneumatic piston O type shut-off ball valve1) Compact structure, small cubage, light ... 25,40,64ANSI150,300,400Actuator typesRT or hsAW pneumatic piston double (or single) action actuator(without or with spring return) ... Air supply400KPa~700KpaControl signalsElectric or air ON/OFF signalAllowable fluid ...