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Part NumberSize (inches)A
45AB-1.51 1/22.589
45AB-2.52 1/22.589

Air blow check valves are used to clean CIP solution or product through the use of pressurized air. The simple design uses the supplied pressurized air to open and when the air supply is removed, a spring closes the valve. The clamp connection allows for quick assembly and disassembly for cleaning and replacement of filter media. Steel & O’Brien offers these valves in various air supply configurations.


* Available standard with quick disconnect, female NPT, or hose barb style air supply connections. * Field serviceable with no special tools required, repair kits available. * Approved for 3A Accepted Practice 604-05 for supplying air under pressure in contact with milk products when filter disc is used. NOTE: Drawing, part numbers, and dimensions shown are for Clamp End Style Air Blow Check Valve with quick disconnect connection. Call Steel & O’Briend for details on other configurations.

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