Watts 0111512 4" Stainless Steel Double Check Valve Assembly with OSY Shutoff Valves Valves Check Valves

Watts 0111512 4" Stainless Steel Double Check Valve Assembly with OSY Shutoff Valves This 4" lead free double check valve assembly is designed to prevent the reverse flow of water of non-potable quality from being pumped or siphoned into the potable water supply due to back siphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazards and from other contaminants found at the service line entrance. This compact modular design with a single access sleeve for easy maintenance is approved for horizontal or vertical installation in accordance with the direction of the flow arrow on the assembly. It consists of a stainless steel body, tri-link check valves, outside stem and yoke resilient seated gate valves, and test cocks.Watts 0111512 Features:Stainless steel housing and sleeveTri-link check valves are removable and serviceable without the use of any special toolsOutside stem and yoke resilient seated gate valvesBronze body nickel plated test cocks N/A