9 - 11 April 2019 // Nuremberg, Germany

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Exhibitors & Products POWTECH 2017
Zoom product LOGO_ProFlap III

ProFlap III

LOGO_ProFlap III

ProFlap III

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ProFlap III: Optimized and certified back pressure flap

During the extraction of explosive dust, explosion isolation is required. That means the flame penetration into ductwork and the possible subsequent explosions must be averted. Keller Lufttechnik offers the ProFlap III back pressure flap to shut off the dirty air side of a system in case of an emergency. During normal operation, the back pressure flap is kept open by the air flow. During an explosion, the flap is shut by the pressure surge inside the ductwork. Keller Lufttechnik upgraded the ProFlap. The closed flap now securely seals the ductwork, and all models lock automatically. The optimizations paid off, because back pressure flaps must now meet the stricter standard (EN 16447). Series III passed the tests successfully. It possess a unique selling point in certain applications, such as in processing of metal/aluminum.

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