Episode 24 – How To Heat And Bend PVC Conduit (The Right Way)

Someone recently asked me if there’s a way to bend PVC conduit or if someone makes a bender or a tool to get a proper bend. In this episode we’re going to cover how I do it.When working with PVC conduit electricians do one of two things when bends are involved. Either: 1) we will buy “manufactured bends” like pre-bent “90’s, 45’s, and 30’s” 2) we will use a heat gun to manually bend the conduit to fit the application.Manufactured bends are often sold in the same aisle as the PVC conduit itself, and come in several angles. However, sometimes the job requires a slightly trickier bend to be made so we need to do it by hand. Often times pre-manufactured bends are too large, or create too small of an offset so it’s time to break out the heat gun!To bend PVC you need to have either a high-powered blow dryer or an actual “heat gun” at your disposal. These can be bought online or at your local Home Depot. The model I have (and prefer) is a Wagner Furno 750. It has a digital display and will heat up to 750watts. Not only can you hold it like a gun to heat the conduit, but you can set it upright on the ground and roll the pipe with both hands. Not many models out there have this functionality.The second thing to have nearby when bending conduit is a bottle of water or a hose. When heating PVC conduit it becomes very maleable, but it does not stay in the position you bend it without waiting quite awhile – while holding it in the desired position. One way to speed the drying process up is by splashing cool water on the PVC to set it instantaneously.Bending A 90A 90 is probably the most involved thing you could bend using PVC pipe and a heat source. The reason is that you need to overheat the amount of pvc that you’re going to bend. I try to heat 6-8 inches of pipe evenly when bending a 90, as the total 90 will be roughly 5” in from beginning to outer edge. I slowly heat the entirety of what I intend to bend, and begin applying pressure to bend the pvc. I bend at multiple points until I get the pvc flexible enough to start forming a 90, and continue heating any stiff areas that are not loosening up. Finally once I get the shape I want, I pour some water on the pipe to rapidly cool the material – locking the shape in instantly. Bending An Offset Step 1 – Measure Your OffsetThe first thing we need to know is how far away from the wall our pipe is. This is tWant to learn more about becoming an electrician or mastering the craft? Visit ElectricianU.com for courses, resources, and everything you need to succeed!

There are no comments yet.

Please log in to write the first comment.