Sioux Chief 650 Series piston-type water hammer arresters shall be required in piping systems. Water hammer arresters shall have sufficient volume of air to dissipate the calculated kinetic energy generated in the piping system. Arresters shall be effective when installed at any angle. Arresters shall be approved for installation with no access panel required. Water hammer arresters shall be ANSI/ASSE 1010 2004 certified. Arresters shall be sized and placed per manufacturer's instructions.

Tomahawk HydraRester™ Water Hammer Arrester, Series: 650, 1 in Nominal, Male C x Press Fitting, 350 psig, 33 to 60 Fixture Unit Capacity, 250 deg F, Copper Body, EPDM O-Ring, 12-1/2 in L x 1-3/8 in W, Domestic

• Lifetime cycle tested at US testing laboratories to withstand 10,000 shock cycles
• Factory tested to withstand 500,000 cycles without failure (654-C tested)
• HydraRester™ male sweat fittings are compatible with press-fitting systems, such as Viega ProPress™ and all push-fitting systems
• Allows for installation in 2 x 4 wall cavity
• Installs at any angle
• ASSE 1010 certified as a water hammer arrester that is "designed to provide continuous protection, without maintenance" allowing the HydraRester to be installed without access panels
• Type L copper tube arrester

• Catalog https://www.hirsch.com//ASSETS/DOCUMENTS/ITEMS/EN/Tomahawk_652A_Catalog.pdf
• Specification Sheet https://www.hirsch.com//ASSETS/DOCUMENTS/ITEMS/EN/Tomahawk_652A_Specification_Sheet.pdf