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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. Features a strong and durable construction Easy to install Impurities do not usually affect function as maximum float line of water is always lower than the valve seal
SDS information: Watts 950106
- Material: Brass
- Maximum Pressure: 150
- Product Type: Automatic Vent Valve
- Brand Name: Watts
- Vent Size: 1/8
- Connection Type: Straight Connection
- Sub Brand: Series FV-4M1 Minimum Working Pressure: 1.45 psi
- Temperature Range: 33 deg. F - 240 deg. F
SDS information: Watts 950106
- WARNING CA Residents: Prop 65 Notice:
- No Prop 65 data available for this item. Will not ship to California.