

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
Specifications
- 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