Plumbing Specialties Copper with Low-Lead Brass Adapter Water Hammer Arrestor, MNPT

The noise from banging pipes is caused by shocks of high speed water flowing in the piping system

when a fixture is suddenly closed. Sudden stoppage of the water (a non-compressible liquid) flowing

at a given pressure and velocity causes a surge or spike of pressure and is called water hammer.

When this occurs a pressure wave travels back through the piping until it finds a point of relief.

Dishwashers, clothes washers, fast closing positive shutoff valves incorporated in the system,

all contribute to creating water shock which is not only annoying but damaging to pipes and

appliances. VIPO Water Hammer Arrestors incorporate a permanent pre-charged sealed

air chamber to absorb the shock. The sealed chamber prevents the loss of air to the water and

ensures long and trouble-free life. All potential leak points are permanently sealed.

As shown, it has been established that the preferred location for the water hammer arrestor is

at the end of the branch line between the last two fixtures served. The location of the water

hammer arrestor shown above applies to branch lines that do not exceed 20 ft. (6m) in

length, from the start of the horizontal branch line to the last fixture supply on this branch line.

When the branch line exceeds the 20 ft. (6m) length, an additional water hammer arrestor

should be used. This practice is best defined by two rules which have been established to

cover the placement of water hammer arrestors.

PRODUCT DETAILS

Controls water pressure shock and prevents water hammer conditions. Installs in new or

existing plumbing systems at any angle. Ideal in dishwashers, clothes washers, and

quick-closing faucets.

TECHNICAL SPECS

Item                                  Water Hammer Arrestor

Body Material                  Copper with Low-Lead Brass Adapter

Connection Type             MNPT

Pipe Size                        1"

Factory Set Pressure     60 psi

Overall Height                8-13/16"

Diameter                        1-5/8"

Max. Pressure               150 psi

Temp. Range                 33 Degrees to 180 Degrees F