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    Added safety and efficiency combined with our reliable actuated valve systems

    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.

    Low power demands and remote operation

    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).

    Features & benefits

    • Compact design – the system is designed to be totally self-contained for ease of installation to new or existing SSVs.
    • Local and remote operation.
    • Capable of independent emergency shutdown (ESD) initiated through a solenoid valve, manual trip (ESD) valve, and/or fusible element, or other means.
    • Multiple power options for the electric motor with CSA/UL and/or ATEX/IECEx certifications.
    • Multiple displacement options for the motor-driven hydraulic pump for different valve opening speed requirements.
    • Operating hydraulic pressure up to 3,300 psi (22,753 kPa).

    Have questions about ESD-EH? Contact our sales team today to get started.

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