400-4 1/8-Inch NPT Float Air Vent (4-Pack) for Taco, Compatible with Hot Water Boilers, Radiators, Expansion Tanks, and Other Hydronic Heating Systems
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Product details
| Management number | 221427951 | Release Date | 2026/05/03 | List Price | US$21.60 | Model Number | 221427951 | ||
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| Category | |||||||||
The 400-4 Float Air Vent Valve is a high-quality automatic air vent designed for hydronic heating systems. Featuring a durable brass body with a corrosion-resistant nickel-plated finish, it efficiently removes trapped air from hot water radiators, baseboards, convectors, radiant heating panels, and small unit heaters. With a 1/8-inch NPT connection, a maximum working pressure of 150 psi, and a temperature rating of up to 240°F, this vent ensures optimal heating performance. Its threaded cap allows for easy access and cleaning during routine maintenance.
- Durable Brass Construction - Built with heavy-duty brass and a corrosion-resistant finish to withstand high pressure (up to 150 psi) and high temperature (up to 240°F), ensuring long service life
- Automatic High-Capacity Air Release - Effectively vents unwanted air from hydronic systems, reducing noise and improving circulation efficiency throughout the heating system
- Serviceable Threaded Top Cap - The vent cap is threaded for easy removal, allowing for cleaning and maintenance without replacing the entire unit
- Bubble Breaker Mechanism - Integrated internal baffle design breaks up microbubbles and helps collect air for faster, more effective venting
- Wide Range of Applications - Ideal for use in residential and commercial heating systems including radiators, radiant floor heating, and small heaters—compatible with most 1/8” NPT fittings
| Size | 1.81 x 3.19 x 1.81 inches |
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| Set Name | 4-Pack |
| Brand Name | Bzcovac |
| Unit Count | 4.0 Count |
| Valve Type | Float Valve |
| Thread Size | 1/8-inch |
| Thread Type | 1/8-Inch NPT |
| Manufacturer | CHOW LLC USA |
| Model Number | 400-4 |
| Material Type | Brass |
| Connector Type | 1/8-inch NPT |
| Exterior Finish | Nickel |
| Item Dimensions | 3.19 x 1.81 x 1.81 inches |
| Number of Ports | 2 |
| Maximum Pressure | 150 Pound per Square Inch |
| Number of Pieces | 4 |
| Specification Met | ASME B16.34 |
| Included Components | Float Air Vent Valve (1/8" NPT) |
| Outlet Connection Size | 0.13 Inches |
| Outlet Connection Type | NPT |
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