air cushion valve is a device to prevent collapse of pipe as well as bursting during sudden stoppage of pump or valve etc. It eliminates the chances of water hammer. Air cushion valve is provided with separate inlet and outlets for air. When a pumping machine stops suddenly, the water column travels forward due to its momentum. When the momentum is lost, it returns backwards and exerts a pressure at pump/valve.
when the water column returns, it creates excessive pressure, which is the cause of water hammer. During this process, water column separates at various places creating vacuum. Air is required to fill the vacuum to prevent the pipe from collapsing in case of excess vacuum. Air cushion valves inhales the sufficient air at the time when water column separation takes place. Once the air is taken in and the water column starts returning, the air inlet is closed. Air is then compressed in between separated water columns.
when air compression creates sufficient pressure, outlet valve opens, allowing air to escape under pressure. The outlet is further controlled by orifice controlled needle valve to limit the quantity of outgoing air. Thus the energy of water column is lost in expelling the air and an air cushion is formed in between the separated water columns. Due to this process the rejoining of water columns is very slow and increase in pressure at this moment is moderate. Our company is one of the trusted manufacturers and suppliers of air cushion valve in the market. We offer highly quality air cushion valves at the most competitive price range.
highlights made by using optimum quality raw material high performance durable low maintenance
details
internal working parts ss 304
main body m.s. (as per is 2062)
pressure pn 1.0/pn 1.6
sealing ring neoprene rubber
size 80mm to 300mm
Additional Information
Payment Terms L/C, D/A, D/PT/T
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Member Since 11 Years
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GST No. 19APFPP2054M1ZI
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Ichapur, Howrah, West Bengal 
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