Air Vacuum Breakers are installed at the high points of the drip field to keep soil from being sucked into the drip emitters due to siphoning or back pressure. Air vents are required with underground drip systems. They are also used for proper draining of the supply and return manifolds in freezing conditions. Use one on the high end of the supply manifold and one at the high point of the flush manifold as well as on any other high points in the system.
- Instant and continuous vacuum relief
- Non-continuous air relief
- Seals tight at 5 psi
- Durable, weather resistant
- Readily accessible pressure test point
- Easy to install
- Removable dirt cover
- Maximum flow of 50 gpm
Air Vacuum Specification
The air vacuum relief valve provides instant and continuous vacuum relief and non-continuous air relief. Both the body and the removable dirt cover are molded plastic. The body and the dirt cover are connected with a 3/4” hose thread. The ball is low density plastic and the internal seat is vinyl. The air vacuum relief valve seals at 5 psi. Inlet size is a 1” male pipe thread.
SPECIFICATIONS:
- Air Vent 1” NPT + shrader (seals from 5-110 psi)...part number 9500025
- Box, air vent 6”...part number 9500026
- Valve inline fits 1/2” wasteflow drip line...part number 9500027
