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Model 8000
Model 8000

Isolation Valve Models 8000F and 8000T are designed to incorporate two safety relief valves to protect in an overpressure emergency. Only one safety relief valve is in operation at a time, while the other is a back up. If a problem occurs, such as a leak, simply switch to the other alternate safety valve. Remove the faulty valve and make repairs. This insures that one safety relief valve is in operation at all times.

Standard Features

  • Automatic pressure balance at start of position change
  • Pressure bleed valve at each position also serves for in-line testing
  • Safety handle locks in either position with external indicator
  • Low profile design for easy installation in tight areas
  • Low-pressure drop conforms to API RP 520 Part 2 and ASME Section VIII, Division 1, Appendix M


  • Sizes: 1/2", 3/4", 1", 1 1/2", 2", 3" and 4" design.
  • Offered with flanged (8000F) or threaded connections (8000T).
  • Temperature: –250F to 700F.
  • MAWP: Up to 6000 psig on threaded connections
  • Seals: Buna-N, EPDM, Neoprene, FKM, Silicon, PTFE, FFKM
  • Low E Design available for low emission requirements
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