Controlled discharge gas vent
AssigneesEngineered Corrosion Solutions, LLC, Holtec Gas Systems
InventorsDavid J. Burkhart, Jeffrey T. Kochelek, Kenneth Jones, Thorstein Holt
Life of this patent
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Abstract
A fire protection system includes a dry pipe system and a controlled discharge gas vent. The dry pipe system and controlled discharge gas vent operate using a breathing cycle to displace oxygen and/or water vapor from within the piping network of the dry pipe system. The controlled gas discharge vent allows displacement of pressurized air with nitrogen, for example, using manual or automated processes that can employ one or more sensors. Corrosion resulting from oxygen, water, and/or microbial growth is reduced or nearly eliminated.
Claims24
A controlled discharge gas vent comprising:
- a liquid sensing valve having an inlet and an outlet;
- a back pressure regulator having an inlet and an outlet, wherein the inlet of the back pressure regulator is coupled to the outlet of the liquid sensing valve;
- and
- a first orifice having an inlet and an outlet and operable to provide a flow rate of gas therethrough, wherein the inlet of the first orifice is coupled to the outlet of the back pressure regulator.
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Dependencies are inferred from the claim text.