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Proven Performance
These arrestors are bi-directional and are proven to stop an ignited flammable vapor mixture approaching from either direction that can be traveling at subsonic or supersonic velocities. Models have been tested to the U.S. Coast Guard Standard as published in the Federal Register; Appendix A to 33 CFR Part 154 to NEC gas group types D, C, and B. Additionally, they are recognized by and tested to international standards; Canadian Standard Association (CSA) Z343 Rv. 12, British Standard Institute (BSI) 7244: 1990, and German Standard Physikallisch-Technische Bundesanstalt (PTB).
| Pressure Vacuum Relief Valve With Flame Arrestor |
The 950 series
relief valve with Series 7 flame arrestor allows a storage tank with
flammable liquids or solvents to breathe, thus maintaining a safe internal
working pressure while protecting against fire and explosion from outside
sources of ignition. Available in sizes 2" to 10". Standard pressure and
vacuum settings are 1/2 ounce or 1 inch of water column. Seats and pallets
are non-corrosive advanced composite materials or stainless steel. For
closed in vapor collection systems, use an 850 series relief valve with an
Enardo detonation flame arrestor.ORDERING INFORMATION:
Connection size
Maximum rate of flow
Maximum pressure rating
Maximum allowable pressure
drop
Housing
material
Cell
material and gas group
Protective coatings
Drain plug option
Other options