Watts LF709-OSY 10 - Part of the LF709 Series Basement Window Well This 6 IN Watts pressure

This 6 IN Watts pressure reducing and sustaining control valve

This relief valve rubber parts repair kit is used for replacing or repairing the relief valve assembly on a 2 1/2 and 3 inch reduced pressure zone assembly which is used to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure

The maximum working pressure is 400 psi (28 bar) WOG non-shock at 100 degrees F (38 degrees C)

For burner service with extra terminal

Watts LF709-OSY 10 - Part of the LF709 Series Basement Window Well This 6 IN Watts pressureThis 10 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure. This assembly consists of an fused epoxy coated cast iron body, outside stem and yoke resilient seated gate valves, test cocks, and a modular check design for easy maintenance with center stem