150(1 1/2") 250(2 1/2") 200(2") 300(3") 400(4") Bore size #10-32UNF #10-32UNF NPT1/8 NPT1/8 NPT1/8 NPT1/4 NPT1/4 NPT3/8 Piping size Pneumatic (Non-lube) Type Double acting, Single rod Action Air Fluid 300PSI (2.1MPa) Proof pressure 200PSI (1.4MPa) Maximum operating pressure 11PSI (0.07MPa) 8PSI (0.05MPa) Minimum operating pressure Ambient and fluid temperature Without auto switch 15 to 150F