Introducing our new Automatic (Pneumatic) Sealed UHMW Self-Cleaning Blast Gate, the perfect accessory for your HVAC dust collector pipe system. This blast gate is designed to efficiently regulate the airflow in your system while sealing out particulate and fumes/vapors, thanks to its galvanized construction and UHMW seals. Its self-cleaning design ensures that it stays clear and functional, even in the dustiest of environments. The collars are standard O.D. plain ends, but alternate listings for flanged ends or clamp style collars are also available. Additionally, sizes 2” - 8” feature a neoprene spring washer for an added pressure seal, while sizes 10” - 24” are equipped with UHMW seals only for maximum sealing effectiveness. Invest in the best with our Automatic Sealed UHMW Self-Cleaning Blast Gate.