Hydraulic valve actuator GO

manuallinearquarter-turn

Product overview
GO gas-over-oil actuators convert pipeline gas into pressurised hydraulic oil to provide reliable hydraulic drive for quarter-turn and linear actuation. The gas does not enter the hydraulic cylinder: it pressurises oil in dedicated tanks which then powers scotch yoke, rack & pinion or linear double-acting actuators.

Features

• Available in scotch yoke, rack & pinion and linear double-acting configurations
• Wide range of high-pressure control options for precise operation
• Controls designed to operate at full pipeline pressure to avoid regulator failure points
• Modular integrated manifold reduces external fittings and leakage risk
• Selectable low- or high-pressure control logic
• Local manual control via lever-operated poppet valves on the multifunction manifold
• PED or ASME approved gas/oil and power-gas storage tanks
• Bi-directional speed control as standard using adjustable hydraulic flow valves
• Manual hand pump for operation during pneumatic supply loss
• Stainless-steel pressure gauge with psi/bar scale for gas supply monitoring
• Stroke time adjusted through two hydraulic flow-control valves for smooth, repeatable actuation
• Ingress protection certified to IP 66M/67M
• Compliant with PED 2014/68/EU
• Hazardous-area approvals: ATEX/IECEx II 2 G Ex e,d,ia IIB T4 IP65 minimum; UL/CSA Class I Division 1 Group C,D NEMA 3 minimum; Class II Division 1 Groups E,F,G NEMA 3 minimum

Applications
Designed for installations where a local high-pressure pipeline gas source is available and where robust, field-proven hydraulic actuation is required for valves and dampers in industrial process, oil & gas and utility environments.

Technical specifications

• Actuation types: scotch yoke, rack & pinion, linear double-acting
• Hydraulic power source: pipeline gas converted to pressurised hydraulic oil via gas-over-oil tanks
• Control logic: selectable low- or high-pressure control; local lever-operated poppet valves
• Speed control: adjustable hydraulic flow-control valves; bi-directional speed regulation
• Manual operation: dedicated manual hand pump for pneumatic loss scenarios
• Instrumentation: stainless-steel pressure gauge (psi/bar)
• Storage tanks: PED or ASME approved gas/oil and power-gas tanks
• Enclosure & ingress protection: certified IP 66M/67M
• Directives & approvals: PED 2014/68/EU; ATEX/IECEx and US/Canadian (UL/CSA) hazardous-area classifications as referenced