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• 22:19, 30 July 2023 MelindaFuentes5 talk contribs created page A Look At Different Types Of Flow Control Valves (Created page with "<br>Flow control valve (FCV) is the name given to the type of valve which allows controlled flow of gas from an appliance or vent to prevent backflow of gas or liquid from an appliance or vent. In a conventional vent system, a vent lets in air from outside while supplying gas to an appliance. The vent is provided with an external clock spring to keep the gas or liquid coming up to the appropriate pressure for the appliance. Normally the pressure of gas or liquid coming u...")