When a shuttering fixture closes, a pressure wave begins to move back along the pipe. As it reaches the arrestor the force acts against the arrestor piston, which in turn, pushes against a charge of air. The air is then compressed, dissipating the wave energy and nullifying the hammering effects. Water Hammer Arrestors do not compensate for loosely fitted pipe work. The Hydra-Rester is formed from Type L copper tube and is cold rolled and spun closed seamless. The piston carries two EPDM seals and is lubricated with approved 111 Silicone Compound System surge pressure can be kept below 1000kPa while the arrestor can operate at a safe working pressure to 2300kPa. The device is easily installed via the various BSP threaded fittings and can be mounted in any position 90º to the water flow.
Scope of Use
- Materials in contact with water: Copper, EPDM, PP, DR Brass
- Maximum operating temperature: 90º C
- Maximum allowable operating Pressure: 1500kPa
Sioux Chief Hydra-Rester - 20mm (3/4") is ideal for general applications. The Hydra-Rester is ideal for installation on supply lines to washing machines, electronic and clockwork garden water timers, dishwashers and all general domestic and commercial appliances likely to cause water hammer.
- • Simple to install
- • Maintenance free
- • Cost effective
- • Seamless shock absorbing chamber
- • Suits hot and cold water
- • Protects against fixture damage and flooding
- 7001 – 15mm (1/2”) Hydra Rester
- 7002 – 20mm (3/4”) Hydra Rester