Hey guys, after buying several new machines this year I decided that I needed more room in my shop and that I could reconfigure my dust collection setup to go from 4 dust collectors down to 1 and have it also hit all of my new machines. The dust collector that I decided to keep is a large 10hp bagger style unit with a 12 inlet and multiple 24 x 72 bags. My plan is to put it in the back corner and have it run diagonally across my shop with branches and drops for the machines. The main trunk pine with be 90ft long of 12 duct with several 15ft branchs and one 20ft branch. It will have about 8 wyes and 4 or more Tees. In total there will be 17 machines + that will be on this trunk line but never more than one machine being used at a time.
Now I am considering the type of duct that I will go with for the trunk line. Unfortunately no one locally stocks spiral pipe. It would have to be shipped in and the cost to purchase locally would be more than just ordering it from the Blast Gate Company online. I figured up the total cost using spiral pipe and fittings to be about $10,000. I could get just the trunk line in spiral pipe and use snap lock style fittings. 18 pieces of 12 x 5ft spiral pipe is $1,105 shipped to my shop.
Are there any more budget friendly options? I would like to use something better than snap lock but cheaper than spiral pipe. Is there a way to add a flange onto 12 snap lock so that the pipe and fittings dont fit inside one another (which is a flow killer and causes clogs) but rather some type of sleeve or coupler that could slid over the ends of the snap lock? What about any bolt together flanges for snap lock HVAC duct?