(QTY.2) SIEMENS 599-01081 4" PNEUMATIC ACTUATOR This Flowrite 599 Series 4-inch Pneumatic Valve Actuator is designed for use with Flowrite 599 Series valves in liquid and steam service applications. This valve actuator has a 3/4 inch stroke, a nominal spring range of 3 to 8 psi, a max diaphragm pressure of 35 psi (241 kPa), and a 1/8 inch NPT air connection. Other features of this valve actuator include rugged, all metal housing, visual position indication and a large diaphragm area for control accuracy. Actuator Type Pneumatic Fail Safe Yes Ambient temperature, operation 0 to 180 °F, -18 to 85 °C Stroke 3/4 in., 20 mm
eBay