Description
Hoffman 401485 78 Water Main Vent, 3/4", 150# Max
Description:
The Hoffman 401485 is a high-pressure main vent designed for hot or cold water or glycol mains and process applications with a specific gravity greater than 0.7. Featuring a durable cast brass body with a built-in check valve, it includes a 1/8" NPT safety drain tap for moisture discharge and a body that unscrews for easy cleaning. The vent handles up to 150 psig operating pressure and 450 psig hydrostatic pressure, with a temperature range up to 250°F, making it a reliable solution for hydronic system venting.
Specifications:
| Feature | Details |
|---|---|
| Application | Main Vent |
| Size | 3/4" NPT (Male, Straight Shank) |
| Type | Built-In Check |
| System Type | Hydronic (Water) |
| Max Operating Pressure | 150 psig (10.3 bar) |
| Max Hydrostatic Pressure | 450 psig (31.1 bar) |
| Temperature Range | 140°F – 250°F (60°C – 121°C) |
| Min Temperature | 140°F (60°C) |
| Mount | Straight |
| Adjustability | Non-Adjustable |
| Material | Cast Brass |
| Body Pattern | Straight |
| Thread Type | Male |
| Safety Drain Connection | 1/8" NPT (Top Tapped for Drain) |
| Special Features | Built-in check valve, easy-clean body |
