When the pipes start to fill the ball will raise up and dance around inside of the housing. This creates a desirable Turbulent Flushing Action that flushes away sediment and dirt deposits.

The ball changes valve seats every time the system is cycled. The Pyramid Shaped Screen deflects sediment and dirt deposits away from the screen as opposed to having the dirt hammered into an ordinary flat screen.

The Wicking Pad is large and recessed protecting it from otherwise damaging sharp objects and rocks.
The addition of a Hammer slug enables you to install the drain with greater ease.
 

Opening Pressure for Valve is 10 to 11 PSI

Closing Pressure for Valve is 9 to 10 PSI

Max. Operating Pressure is recommended not to exceed 1;000 PSI

Bursting Pressure for Valve is 1;500 PSI

Features and Refinements Include:

• All Plastic ABS Valve Housing Construction
  - No Metal Parts to Rust

• Valve is a Precision Ground Ball made of E.P. Rubber
  - Made for wet conditions

• Color of Drain Housing is a Rich Deep Yellow

• Wicking Pad for dispersing water is made of a non-woven Polyester Plastic

• Wicking Pad color is white

• Raised lip around Wicking Pad protects rocks and gravel from loosening the pad

All soils are suitable for drainage. For clay conditions a Gravel Sump is recommended.

Pipe most suitable for use are PVC; Polyethylene; Copper; and Galvanized.

Automatic Drain Valve installation is recommended at all low points in the

irrigation piping system. On laterals use along side heads; valves; and low points.