Prater Completes Testing To Become The Only Rotary Airlock Valves Commercially Available In North America Certified To Comply With NFPA-69.

In February of 2015 Prater Rotary Airlock Valves were tested at by Fike® at their Fike® Remote Testing Facility according to guidance found in the NFPA-69 standards.

Fike® concluded that Prater Rotary Airlocks “were structurally sound, exhibiting no visually observable plastic deformation in any test." Additionally, the rotary valves "successfully isolated the protection region from flame propagation."

Rotary Airlock Valves are commonly used in industrial and agricultural applications as a component in bulk material handling systems. Rotary feeders are primarily used for discharge of bulk solid material from hoppers into a pressure or pneumatic conveying system.

Prater Industries is located in Bolingbrook, Illinois and is an industry leader in material handling equipment. Their product offering includes Rotary Airlock Valves, Fine Grinders, Air Classifying Mills, Lump Breakers, Sifters, Air Classifiers, Hammermills, and Compactors as well as Toll Processing Services.

Complete testing results are available upon request. Testing video is available on our website and YouTube.

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