

Watts 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 female 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.




| Manufacturer | Watts Brass & Tubular |
| Part number | FV-4M1 1/8 |
| Item Weight | 136 g |
| Product Dimensions | 8.64 x 5.08 x 5.08 cm; 136.08 g |
| Item model number | 0590715 |
| Size | .125 |
| Color | Yellow |
| Material | Brass, Polyethylene (PE) |
| Item Package Quantity | 1 |
| Maximum Pressure | 150 Pound per Square Inch |
| Measurement System | inch |
| Specification met | ISO 9001 |
| Batteries Included? | No |
| Batteries Required? | No |
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