The valve relieves pressure as the fluid level rises while filling a tank. The valve relieves vacuum as the fluid level drops while emptying a tank.
- Vacuum Break: 2" water column, 0.1 PSI
- Pressure Relief: 22" water column, 0.1 PSI
- Maximum flow rate: 500 GPM
- Valve has both 2" and 3" clamp connections
- Dome helps in preventing external contamination
- Can be used with any clamp gasket