Pneumatic Actuator Operating PSI Range 8 to 13 Max Air Pressure 30 psi Stroke 6 in Nominal Spring Range 8 to 13 psi Mounting Type Pivot Net Force Exerted @ 0 PSI 144 lb Net Force Exerted @ 18 PSI 89 lb Length 14 in Width 7 3/16 in Height 7 1/8 in Provides Modulating or Two Position Control For Use With Dampers or Air Valves