Posted by Mike Warner on September 25, 2016
We receive many calls from customers wanting to bend 6" PVC Schedule 40 pipe so I decided to give it a try this weekend. I used the same technique used to be 4" PVC pipe and that is to place flexible metal hose inside the pipe and then place the PVC Bendit in the middle. I used 4 pieces of 2 1/4" Flexible metal hose and 4 pieces of 1" flexible metal hose and placed the 9-B PVC Bendit in the center. I placed pipe insulation around the pipe to help insulate it and keep the heat.
After 40 minutes heating it was close to soft. Another 10 minutes and it was able to be bent. The photo with this blog shows the result
I am not saying this will work for your desired bend but with practice and the correct conditions, i.e., 6" pipe insulation around the pipe and two people working with the pipe as it gets hot it may work just fine. I believe the biggest challenge is to heat the pipe uniformly.