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Series FV-4 automatic vent valves are used in commercial and residential hydronic heating applications to provide automatic air venting for hot or cold water distribution systems. It consists of a brass body construction with male NPT connection, brass cover, air vent with silicone rubber seal, polyethylene float with valve plug and automatic vent. Series FV-4M1 has a high temperature rating and is ideal for use with glycol systems or for use as an anti-vacuum device. It can also be installed to permit the separation and dispersal of air while fluid is circulating in the system. Can be disassembled for inspection and cleaning.
WATTS® Air Vent Valve, FV-4M1 Series, 1/2 in Nominal, Brass, 3-5/16 in H
Dimensions | : | 3-5/16 in H |
Material | : | Brass |
Nominal Size | : | 1/2 in |
Plumbing and Flow Control | : | Plumbing and Flow Control |
Series | : | FV-4M1 Series |