Mercer Valve 9500 Series Modulating Pilot Operated Safety Relief Valves, Pressure Relief Valves (PRV)
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Mercer Valve 9500 Series Modulating Pilot Operated Safety Relief Valves, Pressure Relief Valves (PRV)

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The Mercer 9500 Series Modulating Pilot Operating Safety Relief Valves are “State of the Art” in pilot operated pressure relief valves. Mercer Valve Company’s Modulating Pilot is designed to gradually open the main valve in response to the system overpressure. This is very different from the snap action pilot where the main valve is abruptly “snapped” open, then closed. Modulating pilot valves produce far less shock on the system, and there is considerably less wear and tear on the main valve components.

Features

  • Designed with "Auto Seat Technology"
  • Consistent set pressures allowing repeatable uses without repair or resetting
  • Open, Close, Seat and Seal
  • Low rated and fully guided spring allows for more consistent set pressures from pop to pop
  • Built in accordance with the requirements of ASME Boiler and Pressure Vessel Code. Sec. VIII Div. 1
  • Non-rising stems allowing valves to be installed in small areas
  • Available with flanged inlet sizes of NPS 1" to 8" (DN 25 to 200)
  • API orifice sizes of "D" through "T"
  • Full bore inlet sizes of 1.5" through 8"

Applications