Fred Voorhees
03-13-2004, 8:32 AM
Well, the pics are back and here are the blast gates that I fabbed up according to Terry Hatfields plans. I must say, these gates are absolutely simple to make and can be constructed at below the cost of what you would pay for those that you can purchase. AND, it is obvious that they are lightyears ahead of the commercial gates in leakage. It was a blast making them.
Picture 1 The four five inch blast gates that were necessary for my system set-up. I had no problem finding the required starter pieces with flanges at my local HVAC dealer.
Picture 2 However, the four inch starter pieces did not have flanges. These were used in connecting flex ductwork to fiberglass duct board. This meant that I needed to fab up flanges. No problem doing that with Ό luan ply.
Picture 3 Here I am putting the finishing touches on one of the 4 gates.
Picture 4 My machinery is pretty much around the perimeter of my shop. Therefore my blast gates would mount to the walls this way, they could also act as hanger supports. Hence the configuration with the gussets.
Picture 5 Because a few of the gates would be mounted above the knee wall on the angled wall leading up to the ceiling, they would angle downward. For these particular gates, I added tee-nuts and wing nuts to secure the moveable gate from sliding out of its housing. Walnut plugs covering the screws holding the gussets still needed to be cut off and sanded flush.
Picture 1 The four five inch blast gates that were necessary for my system set-up. I had no problem finding the required starter pieces with flanges at my local HVAC dealer.
Picture 2 However, the four inch starter pieces did not have flanges. These were used in connecting flex ductwork to fiberglass duct board. This meant that I needed to fab up flanges. No problem doing that with Ό luan ply.
Picture 3 Here I am putting the finishing touches on one of the 4 gates.
Picture 4 My machinery is pretty much around the perimeter of my shop. Therefore my blast gates would mount to the walls this way, they could also act as hanger supports. Hence the configuration with the gussets.
Picture 5 Because a few of the gates would be mounted above the knee wall on the angled wall leading up to the ceiling, they would angle downward. For these particular gates, I added tee-nuts and wing nuts to secure the moveable gate from sliding out of its housing. Walnut plugs covering the screws holding the gussets still needed to be cut off and sanded flush.