Outdoor Wood Furnace Info
All-Purpose OWF Discussions => Plumbing => Topic started by: Jared43758 on April 28, 2015, 12:55:21 AM
-
I'm bending my pipe straight up behind my concrete pad. I used a ratchet strap to help out a little bit but the plastic outter shell started to crease a little bit. How far can you bend the pipe and not hurt it? Smash the pex pipe inside?
-
It’s a 5 foot radius on Logstor, and I figure about the same for Rehau given it’s pretty much the same thing.
Maybe somebody that deals with it on a regular basis will chime in?
Sloppy chimed in with a great ideal on how to bend it and hold it, use a 1” ratchet strap, place one end near the top and the other end farther back on what will be in the bottom of the trench. I’m too cheap to lose a ratchet strap so I used a heavy piece of plastic baling twine and tied that to the part that will get buried so I could retrieve the ratchet strap.
-
I believe the radius on rehau is like 3.5 ft. I had the pdf downloaded at one time but I don't know where it is at the moment.
-
I found the pdf. It says the minimum radius on dual 1" is 3.3 ft.
-
When my original boiler was installed the hot water line (rehaus) was in a rather large loop in the back of the boiler.
The pipe kinked causing a restriction in water flow. This caused the pump to really work.
Gentle curves are always friendlier. A ratchet strap doesn't make it sound to friendly.
-
If it would let me add pictures and it won't, I would show u some of the extreme testing I did on a spare piece yesterday. I put a short extra piece in a vise and used a strap to bend it. I found a 9/16" socket I had fit just perfectly snug inside the pex line. I attached a piece of wire to the socket so I could pull it threw the line. I kept bending the line more and more, knowing that as soon as the socket met resistance and I couldn't easily slide it threw, the pex was starting to flatten. Needless to say I had a good 2" smash in kink before the socket couldn't easily slide threw. And as soon as I let up on the strap I was able to pull the socket threw again
-
If it would let me add pictures and it won't, I would show u some of the extreme testing I did on a spare piece yesterday.
Unfortunately the uploader is full, I could delete some files from it but then we would be getting that message “photo deleted by admin for space” which I hate to do as they’re are several older threads in the homemade section that are missing the photos that explain quite a bit what the person was doing. The old “ a picture is worth a thousand words” holds very true sometimes.
Instead upload your photos to Photobucket, Flickr, or even Facebook then paste the link to the photo here. I personally have almost 3000 photos on both Facebook and Photobucket, since storage is free and the albums are set as private I use em as personal storage space in case something ever happens to both the wife’s mac and mine, the Time Capsule and the My Book that everything is backed up to.
I’m anal about backups, had a glitch in the last Dell I owned and not only did the hard drive crash but it wasn’t backing up to the My Book like it claimed, recreating 3 years worth of ledgers and taxes caused a considerable increase in adult beverages for awhile. I also have all those pictures on a thumb drive now with a separate thumb drives for farm books and taxes which are stored in a safe deposit box at the local bank. Might sound kinda anal, but we have pictures of our first trip to England to see our favorite cousin who was 50 getting married for the first time to a lady who was 35, that old goat ;)
-
My pipe showed no issues until heat was applied.
The pipe softens and then the potential for kinking increases.
Unless there is a real good reason for the extreme bend I would opt for gradual.
Consider using an elbow.
-
AirForcePOL is right - the installation guide is online. Part 4.4.1 has a full breakdown of the bend radius for each size of the pipe. It's here:
http://www.rehau.com/download/872820/insulpex-pre-insulated-pex-piping-design-guide.pdf (http://www.rehau.com/download/872820/insulpex-pre-insulated-pex-piping-design-guide.pdf)
All the literature available on this pipe is here:
http://www.rehau.com/us-en/ressource-centre/1219912?query=INSULPEX&divisionLevel1=&category= (http://www.rehau.com/us-en/ressource-centre/1219912?query=INSULPEX&divisionLevel1=&category=)
-
You might prove a good point with the heat. I've already got the concrete poured and the line buried. This is my first install so everything can't go perfect I guess. I cut a knock out of the back of my pad to let it move a little bit more. It's got a slight bend in the line but not too much. I think I'm close enuff to get the line in the stove
-
AirForcePOL is right - the installation guide is online. Part 4.4.1 has a full breakdown of the bend radius for each size of the pipe. It's here:
http://www.rehau.com/download/872820/insulpex-pre-insulated-pex-piping-design-guide.pdf (http://www.rehau.com/download/872820/insulpex-pre-insulated-pex-piping-design-guide.pdf)
All the literature available on this pipe is here:
http://www.rehau.com/us-en/ressource-centre/1219912?query=INSULPEX&divisionLevel1=&category= (http://www.rehau.com/us-en/ressource-centre/1219912?query=INSULPEX&divisionLevel1=&category=)
I couldn't get any info from these links
-
After looking at the links, I would not go with anything less than 5'
GOOD LUCK
-
Just to add. I was laying mine in a trench and just lifting the middle of the run 5' up caused a ripple. Was trying to pull some slack out of it. We were going up out of the trench into the building.
Someone else experienced the same thing. We assume there was a void in the foam. No pressure was applied. Just lifted it.