Water Hammer Arrestor Installation Detail

This action protects against annoying and potentially damaging effects of water hammer.

Water hammer arrestor installation detail. Water hammer arrestors shall conform to asse 1010. Water j hammer arrestor access panel floor line utility wall box for clothes washer samples. Free standing drinking water cooler samples. Water hammer arrestors are used to absorb the shock when water flowing in a piping system suddenly stops due to fast closing shutoff valves dishwashers and clothes washers.

See below for a shopping list and tools subscribe to this old hou. This practice is best defined by two rules which have been established to cover the placement of water hammer arrestors. Water hammer arrestor typical branch line riser rule 1covers multiple fixture branch lines which do not exceed 20 feet length. Silencing noisy pipes with this old house plumbing and heating expert richard trethewey.

A water hammer arrestor cures this condition with a cushion of air that absorbs the momentum. The three common types of water hammer arrestors used in residential water pipe systems are explained in detail below. When the branch line exceeds the 20 foot length an additional water hammer arrestor should be used. To help clear up the confusion the following article was excerpted from the pertinent sections of the plumbing drainage.

Most often used on 1 2 inch pipe systems the single chamber water hammer arrestor is easily installed onto any section of pipe where it is needed. Single chamber water hammer arrestor. Stand pipe washing machine rough in ui iit. There have been various methods devised for the sizing of water hammer arresters.

These methods have created confusion regarding the proper sizing and location of water hammer arresters among engineers contractors and other persons engaged in the plumbing industry. Install according to manufacturer s instructions. We have models for residential and commercial applications. Arresters absorb the shock wave created by a sudden stoppage of the water flow.

Before you install a water hammer arrestor determine which faucets or valves in your house cause the noise. Lf lead free ed. Arresters for washing machines have screw on. Water hammer arrestor installation guide watts lf150a lf150 ha pdf retrieved 2017 04 02 original source.

A water hammer arrestor stops arrests the noises by cushioning the water with air. Washing machines and dishwashers are prime suspects because their automatic valves close fast. Installing a water arrester on each line supplying the offending fixture or fixtures usually solves the problem. Water hammer arresters are simple devices that install within the water line to a specific fixture or appliance.