Linear actuator LHS, LHD series

hydraulicdouble-actingsingle-acting

KEY FEATURES Fabricated entirely from carbon steel. Low pressure carbon steel hydraulic cylinder suitable for supply pressures up to 120 bar design. High pressure carbon steel hydraulic cylinder suitable for supply pressures up to 400 bar design. Carbon steel piston with dynamic floating O-ring seals coupled with lubricating piston guide rings. Carbon steel spring cartridge (only for single acting) with safety facility which allows safe installation and removal of the whole cartridge assembly. Visual position indicator directly connected to the valve stem showing actuator / valve full linear stroke. 17.4 PH stainless steel piston rod, which prevents corrosion and allows for minimum sliding friction on dynamic seals. ASTM A 320 L7 alloy steel tie rods, with standard electrolytic zinc coating according to ASTM B633 FeZn 12 (thickness 12 μm). Carbon steel mounting adapter with bottom flange machined according to the valve top mounting with carbon steel nickel-plated special coupling mechanism. Optional for wedge gate valves: coupling with hammer blow effect to facilitate valve unseating. Alloy steel galvanized end stoppers available on request. Integral manual override facilities.