Watts FV-4M1-1/8 Automatic Air Vent Valve 1/8"

Watts FV-4M1-1/8 Automatic Air Vent Valve 1/8-inch

Part Number: FV4M1-1/8
Alt. Part Number: 0590715, FV-4-1/8
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Watts FV-4M1-1/8 Automatic Air Vent Valve 1/8"


Watts Series FV-4M1 Automatic Air Vent Valves provide automatic air venting for hot or cold water distribution systems. These vents purge air that may be in the water system. The vent valve utilizes a float to actuate the valve plug which is located at the top of the valve. Once the air is displaced and the system pressure is sustained, the valve plug seals and prevents any water from escaping from the system. The float vent can also operate as an anti-vacuum device since it will permit air to enter the system when it must be drained. It can also be installed to permit the separation and dispersal of air while fluid is actually circulating in the system.

  • Brass body and cover
  • Air vent with silicone rubber seal
  • Float is high temperature resistant polyethylene
  • Suitable for use with glycol systems
  • Can be disassembled for cleaning and inspection
  • Working Pressure Range: 1.45 - 150 psi
  • Temperature Range: 33° - 240° F

The Watts FV-4M1-1/8 is comparable to the Honeywell-Sparco FV180 GoldTop Air Vent.


Watts FV-4M1-1/8 Automatic Air Vent Valve Specifications


Dimensions (inches/mm)
ModelABCDE
FV-4M1-1/8
2-15/16"2-5/8"1-5/8"13/16"5/16"
75mm67mm41mm21mm7.9mm

Certifications
Dimensions
General
Air Vent Valve
Material
Operating Condition
33 - 240 °F
1.45 - 150 psi
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