Posted December 31, 2014
I set up a dust collection system using 2 1/2" hose. I set a blast gate up for each piece of equipment. These are designed for 4" gates but are compatible to the 2 1/2". I would advise that you plan your system and mark your locations. Then install the blast gate mounts. That worked for me. I also used 4" standard hose clamps to secure the blast gate to the mount after I installed hoses.
When I setup the vaccum system...
Posted November 7, 2010
When I setup the vaccum system in our adult village I bought the brackets to hold 4" blast gates and the worked just fine. I first mounted the bracket to 3/4" plywood block, installed the hose and screwed the bracket to the wall. Nice and solid, great product.
I have installed many blast gates....
Posted August 29, 2010
I have installed many blast gates. The negative comments I read would likely have become positive if there were good installation instructions.Because the installation screw holes are inaccessable if the blast gate is in place, there are some easy options. If there is a flexable corner section near by, mark the correct locations of each section and then swivel the unit to one side and the other while installing the screws. Another alternative is to mark the exact location of the bracket with the ducts and blast gate sections in final setup, remove them and install the bracket. The entire unit can then be installed onto the bracket.Note, all of the blast gates I have installed are from Oneida. They all fit slightly snug, as they should.The last method for avoiding attaching ducts together with the blast gates piece by piece on location is to do as follows. Take the entire setup and put it together on your workbench. Using about a six by six inch scrap of one half or three quarter inch plywood or hardwood, fasten the bracket on the wood piece and then strap the blast gate in place along with the attached adjacent pieces. Lift the unit into place and fasten the wood backer to the wall as appropriate.When installing metal duct, disagreeing with a prior comment, it is well worth while to attach the duct itself using the brackets when near an elbow, joint or Y duct. The resulting attached unit becomes absolutely rigid and virtually eliminates metal fatigue. One of the dust collection systems I helped repair had become useless over a periond of years since the lack of regidity permitted metal fatigue in many elbows and joints.The only caveat. Use good screws and do not overtighten. Square drive pan head pocket hole screws are perfect. They are self drilling.