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Watts FV-4M1-1/8 Automatic Air Vent Valve 1/8"
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Watts
Watts FV-4M1-1/8 Automatic Air Vent Valve 1/8"
Watts FV-4M1-1/8 Automatic Air Vent Valve 1/8"
2 Reviews
Part Number: FV4M1-1/8
Alt. Part Number: 0590715, FV-4-1/8
in stock
only a few left!
out of stock
Expected ship date
Please note: This item is not available for same day shipping. Use
the chat feature or give us a call at 864-284-1801 for further
information.
More expected soon
Please note: This item is not available for same day shipping. Use
the chat feature or give us a call at 864-284-1801 for further
information.
in stock
only a few left!
out of stock
Expected ship date
Please note: This item is not available for same day shipping. Use the chat feature or give us a call at 864-284-1801 for further information.
More expected soon
Please note: This item is not available for same day shipping. Use the chat feature or give us a call at 864-284-1801 for further information.

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

Specifications:
- 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.

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Dimensions (inches/mm) | |||||
Model | A | B | C | D | E |
FV-4M1-1/8 | 2-15/16" | 2-5/8" | 1-5/8" | 13/16" | 5/16" |
75mm | 67mm | 41mm | 21mm | 7.9mm |
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