Fire-Safe Vent Valves Fig 661 & 641Request a Quote
JA Moody distributes many different Keystone valves. Such as the Keystone fire-safe vent valve that is specifically designed for use as airtight and watertight closures. A major advantage of this vent valve over any ordinary valve is that it is fire safe. Meaning that in the event of a fire or a high-temperature flow it remains structurally sound and gets the job done. Thanks to the application of an intumescent ring around the inside of the valve. Creating a fire retardant surface to keep the heat at bay.
|Size Range||641- 2 1/2” – 36”; R 2.5 – R36
661- 7” x 3” – 30” x 20”, K31 – K41
|Pressure ratings||15 PSI working, 30 PSI test|
|Design||316 stainless steel body and disc, Inconel upper stem, 17-4 lower stem, silicone/intumescent seat.|
|BUSHIP Drawing||#804-1749102/1749103 Rev. C.|