Full Blast Gates are used to balance the air going from one branch to another branch. When a machine is used for only a part of the workday, you can close the Blast Gate and divert the air to another machine. Blast Gates 3″-24″ are constructed of aluminum castings with a galvanized steel slide blade. Gate can be disassembled for cleaning.
Balancing with Blast Gates – Our Blast Gates can be adjusted to be open or closed at any position to best optimize their airflow from the equipment. Each of our Blast Gates has a thumbscrew adjustment to control CFM flow. You may close off a duct system a small amount and force that CFM to be used at another machine. Once you balance your system, just mark the location of each blast gate blade, you can even use color markings for different settings.
Half Blast Gate, Self-cleaning Blast Gate, and Air Tight Blast Gates also available.
Use Half Gates when working with wood containing a lot of pitch (it prevents the pitch from clogging the slide track). Half Gate is easily installed in existing ductwork simply by cutting a slot half way around the duct and sliding the blade into the opening, then pop riveting the casting to the outside of the duct.
Self-Cleaning Gates are the same construction as Full Blast Gates except the galvanized steel blade pushes material like green wood, or wood sap through the end of the blast gate casting. This allows the blade to close without jamming on compacted materials.
Air Handling Systems Air-Tight Blast Gates are used in industrial dust extraction and kept in the closed position until the vacuum source is needed. These blast gates increase the efficiency of the vacuum system by closing off inactive segments thus increasing the vacuum pressure at other active areas. The average blast gate leaks air; thus, not completely preserving the vacuum suction for actively open vacuum ports. This creates less than desired vacuum pressure and makes picking up even the smallest particles more difficult.