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Fisher Type 63EG-98HM Pilot-Operated Relief Valve or Backpressure Regulator

  • Manufacturer: FISHER
  • Valve Type: Fisher Regulators
  • Sub-Type:
  • Variety of Construction Materials
  • Low Build-up Capability
  • Chemically Compatible Elastomers
  • No Assembly Adjustments Required
  • Fast Speed of Response
  • Excellent Overpressure Protection
  • NACE Availability
  • Tight Shutoff
  • Easily Converted to Differential Control
  • Versatility in Both Liquid and Gas Service


Type 63EG-98HM can be used for gas, liquid, or steam applications. For applications up to 550°F / 288°C, the Type 63EG-98HM utilizes high temperature Ethylenepropylene (EPDM) or Perfluoroelastomer (FFKM) for class VI shutoff. If used in a corrosive service, Perfluoroelastomer (FFKM) and other elastomers are available options that offer superior resistance to heat and most corrosive chemicals. When using the Type 63EG-98HM with a corrosive liquid, usually water or a water-containing solution, the valve materials must be selected with care. For aqueous solutions, use a stainless steel linear cage or Whisper Trim III Cage and body flange to ensure valve plug travel on a corrosion-free surface.


Product Tags

Emerson Fisher Regulator (Liquid Service) Regulator (Process Gases Service)

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