50mm Barak Automatic Air Release Valve "Barak" D-040-50 - Rated to 16 Bar
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The inclusion of Air Release Valves is critical for the safe movement of water through pipes. When water moves through any pipework, air is released from suspension and this air will cause pockets in the pipework, thus, reducing the overall performance of the system. Air is also released from suspension when water moves through fittings, the filters and, through the pump. This released air MUST be expelled from pipework through an automatic air release valve.
Air in pipework can also be dangerous as air can be compressed while, water cannot. Air in the pipes that becomes compressed can build up pressure and cause "water hammer" or may even cause the pipes to break and split. An air release valve will remove all of the trapped air when the valve is installed at the high-points on the pipework. You should instal an air release valve immediately after the pump, on top of the filters, at every high-point on the main pipes and, at each field valve.
