Pegler Water Hammer Arrestor

The Pegler PEG62 Water Hammer Arrestor is designed to counteract the violent back pressure that can be caused in pipelines by the sudden closure of plumbing valves.
Ball Valves, Electronic Mixers, Solenoid Valves and Quarter Turn Ceramic Taps and Mixers can all shut off flowing water quickly. Closing like this can create a sudden increase in pressure and generate a shock wave that travels through the pipe work. This pressure shock makes a loud bangingnoise, often described as hammer.

In addition to the undesirable noise, this pressure shock wave can damage other pipeline valves and fittings.
In some cases the resulting vibration can damage the pipe work itself.