PVC Bends

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These are bell ends that we used on risers on poles to primary side of pad mount transformers


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macmikeman said:
Something I haven't seen for a long time is the old Greenlee motorized pvc bending oven boxes. You can stick a few lengths in depending on size of conduit and let the machine run and you will have noodles after a bit of time in that machine. It rotates the pipe while heating it. I don't know if Greenlee still sells that machine , but it was really handy for keeping up with the brickies on a jobsite .
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I have a Greenlee heating blanket used for larger conduits. It takes a little longer than a hotbox, but it heats more of the length so you have much larger sweeps. I think most people use propane torches today to heat their larger conduits.
 
Rick 0920 said:
I have a Greenlee heating blanket used for larger conduits. It takes a little longer than a hotbox, but it heats more of the length so you have much larger sweeps. I think most people use propane torches today to heat their larger conduits.
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I looked on Greenlee's website last night. They have 36" ones. The ones I was talking about were 8 feet long . There are some tricks. You don't always want an entire length of pipe as a noodle so we would just shove a bunch of 3/4" in there about three feet into the machine so we could move riser pipes back and forth in the block walls if needed.
 
macmikeman said:
I looked on Greenlee's website last night. They have 36" ones. The ones I was talking about were 8 feet long . There are some tricks. You don't always want an entire length of pipe as a noodle so we would just shove a bunch of 3/4" in there about three feet into the machine so we could move riser pipes back and forth in the block walls if needed.
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I have an old 8 foot baseboard heater and a U shaped piece of sheet metal I bent as a cover that I use if I want to heat up longer segment of PVC. Call me hack if you want - it works though.
 
macmikeman said:
Something I haven't seen for a long time is the old Greenlee motorized pvc bending oven boxes. You can stick a few lengths in depending on size of conduit and let the machine run and you will have noodles after a bit of time in that machine. It rotates the pipe while heating it. I don't know if Greenlee still sells that machine , but it was really handy for keeping up with the brickies on a jobsite .
Click to expand...
rackateirs makes one like it but its basicaly a chunk of gutter with a hole for a heat gun. probably something thay started as a field built invention.
 
Don’t know if this has been mentioned. Old company used a water/antifreeze system from green Lee I believe worked wonders fastest pipe bending ever. And does not burn pipe
 
AC\DC said:
Don’t know if this has been mentioned. Old company used a water/antifreeze system from green Lee I believe worked wonders fastest pipe bending ever. And does not burn pipe
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I have one plant I regularly do work at that has steam, always wanted to see how well it would work, and bet it would work pretty well, for bending PVC.

I know one time they had boiler go down on cold winter weekend, had some frozen pipes and somehow had back flow of steam after boiler was up again that ended up blowing out a PVC section of water piping because of the heat. My best guess is they were trying to thaw something with hot water from steam/water mixing valve which is a common thing in this plant but apparently no check valve or non operating check valve to prevent steam from flowing back into water supply line. My involvement was an after the fact thing so I don't know exactly what all happened. I ended up wiring in an auto dialer and sensors to sense room temperature in certain areas as well as a zone that was activated any time boiler went into alarm status.
 
kwired said:
AFAIK they are not listed, unless that has changed more recently.
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I remember using 20' lengths of multiple sizes on a school project back in the late 90's or very early 2000's (left the field in 2001) and I am sure they would have been listed than. I am sure the school system would not allow non UL listed items on the project.
 
I got this about 15 years ago. I bend a lot pipe on my pool projects. I have been able to bend a 6" piece of Sch.80 PVC. Took some time but it worked.
I never knew the origin of this tool other than someone stumbled on the fact it bends PVC. It wasn't until about 5-6 years ago an employee recognized it as the tool the shrink wrap boats at a marina he had worked at.
I just need a 20 gallon propane tank and I'm good to go.1703691995579.png

Hotbend - The Revolutionary Tool for Bending PVC Pipe!

The HotBend heat gun is a revolutionary tool that will save you time and money on any underground project that requires bending PVC pipe!
hotbend.com

1703691995579.png
 
Mystic Pools said:
I got this about 15 years ago. I bend a lot pipe on my pool projects. I have been able to bend a 6" piece of Sch.80 PVC. Took some time but it worked.
I never knew the origin of this tool other than someone stumbled on the fact it bends PVC. It wasn't until about 5-6 years ago an employee recognized it as the tool the shrink wrap boats at a marina he had worked at.
I just need a 20 gallon propane tank and I'm good to go.View attachment 2569278

Hotbend - The Revolutionary Tool for Bending PVC Pipe!

The HotBend heat gun is a revolutionary tool that will save you time and money on any underground project that requires bending PVC pipe!
hotbend.com

View attachment 2569278
Click to expand...
Is buying one of those shrink wrapper tools cheaper
 
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