Watts Regulator Co. NO.15 Water Hammer Arrestor

The Watts Regulator Co. No.15 Water Hammer Arrestor is a maintenance-free hydraulic shock absorption device designed to protect plumbing systems from pressure surges caused by sudden valve closures or rapid changes in water flow. It uses a sealed piston and air chamber design to absorb shock waves, preventing pipe noise, vibration, and damage to valves, fixtures, and connected equipment, thereby reducing premature wear on plumbing components. The No. 15 model features a 3/4 inch threaded connection and copper alloy/brass body construction, suitable for potable water systems, and can be installed in any orientation for flexible applications. Designed for long-term service, it provides effective pressure surge protection in residential, commercial, institutional, and industrial facilities where hydraulic shock suppression is required. Common applications include residential water supply lines, commercial plumbing systems, hospitals, hotels, schools, apartment buildings, industrial facilities, laundry equipment, dishwashers, ice makers, automatic control valves, solenoid-operated equipment, and process water systems where protecting piping, valves, fixtures, and connected equipment is critical. Technical details: Manufacturer Watts Water Technologies; Model No. 15; Product Type Water Hammer Arrestor; PDI Classification Size B; Connection Type Threaded; Media Compatibility Potable Water Systems; Installation Orientation Any Position; Maintenance Free Sealed Design; and it provides pressure surge protection within plumbing and water distribution systems.