Water Hammer Mechanical Shock Arrestor (1/2")

The vibration caused by the water hammer is annoying and can eventually result in split or cracked pipe fittings, especially at joints. The Altecnic water hammer arrester is maintenance free and can be installed in any orientation. The arrester should be installed close to the tap or valve, minimising the shock’s effect on the system.

The water hammer arrester consists of a cylinder divided into 2 chambers and by a piston with two ‘O’ ring seals. The closed chamber acts as a damper due to the compressibility of the air trapped inside. The open chamber is connected directly to the system and is filled with water. When a pressure surge occurs, the force from the spring and the compression of the air counteracts the thrust on the piston allowing a small change in volume which absorbs the excess pressure.