ESD-EH harnesses PwrESD, our integrated electro-hydraulic power unit designed to operate hydraulic actuators for surface safety valves (SSVs) and flow-line ESD valves.
The compact system design offers minimum added footprint to the SSV while offering both local and remote opening and closing functions to the valve. PwrESD also minimizes the number of hydraulic fittings and connections to limit potential leakage points.
The system is offered with either 24 VDC or AC powered motor with 1/4 to 1 horsepower (0.18 to 0.75 kW) for remote opening and maintaining a fully open position. It also includes a backup hydraulic hand pump. A 24 VDC low power (0.85 watts) solenoid valve is used to retain the pressure in a low-pressure circuit to control the opening and closing operation of the SSV.
The system can integrate pressure transmitters, limit switches, position transmitter, and a hydraulic fluid level switch into an explosion proof electrical enclosure ready for wiring to Stream-Flo’s Intelligent Valve Controller (IVC), Distributed Control System (DCS), or Programmable Logic Controller (PLC).