Sioux Chief 15mm MiniRester AA Size Water Hammer Arrestor

The MiniRester is ideal for installation on washing machine and dishwasher supply lines, single lever taps and all fast action tapware. When a shuttering fixture closes, a pressure wave begins to move back along the pipe. As it reaches the arrester the force acts against the arrester 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 Arresters do not compensate for loosely fitted pipe work. The MiniRester 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 arrester 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 90° to the water flow.