WATTS® FV-4M1 Automatic Air Vent Valve, 1.45 to 150 psi, 33 to 240 deg F, Brass

1176822 MFG #: 0590723
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WATTS® Air Vent Valve, Automatic, FV-4M1 Series, 1.45 to 150 psi, 33 to 240 deg F, Top Vent Tapping, Brass, 3-3/8 in H

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

QTY
  • Features
  • 3/4 in size
  • Body and cover are brass construction
  • Air vent with silicone rubber seal
  • Impurities do not usually affect function as maximum float line of water is always lower than the valve seal
  • Float is high temperature resistant polyethylene
  • Suitable for use with glycol systems
  • Can be disassembled for inspection and cleaning
  • Standard/Approvals: ISO 9001-2008, US Green Building Council
  • WARRANTY: Limited