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Harmony Poly Pipe End of Line Drain Features; Sizes; & Specifications
This valve offers you an Exclusive Turbulent Flushing Action that gives you trouble-free operation for the life of the system. 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.
For all drains, a gravel sump beneath drain is necessary
only in heavy clay conditions.
* Thread Size refers to Female Pipe Thread (FPT) or Male Pipe
Thread (MPT) dimensions.