A water hammer arrestor, manufactured by Sioux Chief, is a device designed to mitigate the damaging effects of pressure surges in plumbing systems, particularly those connected to appliances like washing machines. These surges, often called “water hammer,” occur when the flow of water is abruptly stopped, such as when a washing machine valve quickly closes. The resulting shockwave can travel through pipes, causing noise, vibration, and potentially damage to pipes, fittings, and the appliance itself. These devices typically employ an internal air chamber or spring mechanism to absorb the excess pressure and dissipate the energy of the shockwave.
Protecting plumbing infrastructure from pressure fluctuations is crucial for maintaining its integrity and longevity. Sudden pressure changes can weaken pipe joints, leading to leaks and costly repairs. By absorbing the shockwave, these devices help prevent premature wear and tear on the entire plumbing system, including the connected appliance. This protection not only extends the lifespan of the plumbing but also contributes to quieter operation and a reduction in potential water damage. Their use has become increasingly common in modern plumbing practices as a preventative measure against water hammers detrimental effects.