- Aluminum Blast Gate - This blast gate design has a hole in the barrier plate the same diameter as the opening in the cast aluminum body. This effectively fills the small gap between the two body pieces and helps prevent dust from accumulating in the small space that can build up there if the gate is not operated very frequently. The through plate also self-clears the gate every time it is opened and closed. 4" Specifications: Directs air flow in machine ducting, 3-7/8" OD, 3-1/2" ID, Gate position can be secured with lock knob.; 2.5" Specifications: 2-1/2" OD blast gate directs air flow in machine ducting,2-7/16" OD, 2-1/8" ID
- Plastic Blast Gate - Used in every dust collection system to control air flow from one machine to another, blast gates maximize system efficiency. We offer blast gates in both black ABS plastic and aluminum. Plastic blast gates are economically priced, have a textured surface and an easy sliding gate action. For those customers who prefer metal, our top quality aluminum blast gates feature a cast aluminum body with steel gate and locking knob. Specifications: 4" or 2.5" Outside Diameter, ABS Plastic