Nylon Reinforcement Surge Anticipating Valve With Anti Water Hammer Function

Stainless Steel Pilots Ductile Iron Surge anticipating Valve Nylon Reinforcement Diaphragm Anti Water Hammer​

    A2A5 is a surge anticipation valve and adjusted to eliminate hazardous pressure surges typical of water hammer conditions. A water hammer is caused by a sudden shutoff of a pump or rapid closure of a main valve, causing a fast propagation of low-pressure front, followed by an extremely high-pressure back-wave. A series of pressure waves, each one composed of alternating low and high pressure is created within a few seconds. A2A5 is a piloted hydraulic valve activated by line pressure. The valve has two pilots, for high and low pressure. Normally the A2A5 is closed. It opens when the line pressure drops below a preset pressure, in anticipation to the following surge, and remains open until the fluctuations
subside.

Service Fields:
For water system, irrigation system.

Technical Data:

Consult Factory for other applications
IP68 for water resistance
Comply with BS EN 1074-5, ISO 5208, BS EN 12266-1, BS EN 558-1

Materials And Dimension

DN50-DN350

DN400-DN800