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For over pressure protection on critical oil filled transformers, load tap changers, and other related electrical apparatus for maximum safety and environmental protection.

  • Dual spring loaded valve for quick operation and reseal after a pressure situation
  • 50% higher flowrate than the LPRD for increased tank protection during an over pressure event (12600 SCFM)
  • Utilizes the same bolt pattern as the LPRD and industry standards enabling direct replacement
  • Standard integrated directional shield with 8 inch diameter outlet to maximize flow rate and control hot oil and gas discharge
  • Reduces risk to environment, surrounding assets, and people in the immediate area when used in conjunction with piping kits
  • Variety of optional piping kits, flanges, and animal screens are available from Qualitrol to divert hot oil

  • Operating pressure, Gasket material, indicator style
  • Up to 2 latching or momentary switches (single or double pole form C, high DC, or low current gold contacts)
  • Electrical connection style
  • Gas bleed system
  • Stainless steel piping and body option
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