Actuators are available as either air to air (double acting) or air to spring (single acting).Valve,Pneumatic,4",T-57P",PVC/EPDM The actuators are sized to operate on 80 psi of air pressure, and can be sized to operate on different air pressures upon request..
. Valve,Ball,T-21,1-1/2",PVC,EPDM,Flanged Blocks in two directions, upstream and downstream, leaving full pressure on the opposite end of the valve. Double O-ring seals on stem for added protection.