[ Crank arm actuators for the automation of small size valves including double acting and spring return types; ] scotch yoke actuators for the automation of medium and large-size valves including double-acting and spring return types; gas-over-oil actuators including control cabinet and hand station and operable by gas carried in the pipeline; hydraulic high pressure actuators operated by hydraulic transmission oil or by high pressure water; hydraulic actuators with control cabinets including...

crank arm actuators for the automation of small size valves including double acting and spring return types, scotch yoke actuators for the automation of medium and large-size valves including double-acting and spring return types, gas-over-oil actuators including control cabinet and hand station and operable by gas carried in the pipeline, hydraulic high pressure actuators operated by hydraulic transmission oil or by high pressure water, hydraulic actuators with control cabinets including pre...

Valve Actuators, with Electric Motors, Switches and Starters Therefor; Hydraulic Pumps of the Rotary, Reciprocating Piston and Single Stroke Plunger Type