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  1. Zarkan124

    Differenc between ESDV and Slam Shut off Valve

    The UPS I was talking about is to keep passing the solenoid valve to keep the main valve open thanks to the pneumatic pressure of the gas inside the pipe. The loss of the UPS closes the main valve via the spring of the actuator.
  2. Zarkan124

    Differenc between ESDV and Slam Shut off Valve

    Thank you for your much appreciated answers. So to sum up: ESDV: site wide philosophy, safety related, no need to be fast actuating, linked to SCADA and/or Fire and gas/emergency shut down philosophy Slam shut valve: local impact, process related, fast actuating, no link with SCADA or any PLC...
  3. Zarkan124

    Differenc between ESDV and Slam Shut off Valve

    Can someone tell me the difference between an Emergency Shut Down Valve and a Slam Shutoff Valve? Thank you

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