Pex - Page 2
 

Pex

Started by Ace, January 02, 2015, 08:22:32 AM

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lvmci

Hi All, there is a new corner L bracket clamp that slides over the pex pipe, making a right angle without cutting and piecing and clamping. Just force tubing into place, two less joint to possibly leak per angle. I'm using it on my new conversion plumbing, also running all exposed pex pipe, including hot, red pex wrapped in tubular foam insulation in plastic gutter pipe, that runs across the bay.lvmci...
MCI 102C3 8V92, Allison HT740
Formally MCI5A 8V71 Allison MT643
Brandon has really got it going!

luvrbus

Nick,this was 2 inch white Pex they were butt fusing it, they were using the McEroy hand machine they surfaced it heated both sides and pressed it together and it had the little bead just like a plastic gas line.

I am going to give a try I have a McEroy machine that I used on the plastic gas lines I'll see if works  but 1/2 inch may be to small to work with butt fusing   
Life is short drink the good wine first

luvrbus

Which is better for a bus the Pex with the oxygen barrier or without the barrier ? lol I notice I am using both on the house and cannot tell the difference unless I read the label   
Life is short drink the good wine first

Dave5Cs

I used white Shark pipe with Pex fittings and copper rings. I found the big crimping tool at an estate sale for free because no one knew what it was for. I said I think I have a use for it and they said here take it. It had only been used a few times. I also have the short one you use with vice grips.

Dave
"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
2001 Jeep Cherokee Sport 60th Anniversary edition.
1998 Jeep TJ ,(Gone)
Somewhere in the USA fulltiming.

Iceni John

Quote from: luvrbus on January 02, 2015, 06:36:36 PM
Which is better for a bus the Pex with the oxygen barrier or without the barrier ? lol I notice I am using both on the house and cannot tell the difference unless I read the label   
You only need the barrier PEX for hydronic systems.   It contains lead (like most plastics), so it's not intended for potable systems.

John
1990 Crown 2R-40N-552 (the Super II):  6V92TAC / DDEC II / Jake,  HT740.     Hecho en Chino.
2kW of tiltable solar.
Behind the Orange Curtain, SoCal.

Barn Owl

I am using the SS rings. One advantage is the tool will fit into tighter spots, and one tool will do multiple sizes. The SS rings do cost slightly more than the copper, but for my application it was the best and only practical option.

Link: PEX Crimper for Stainless Steel Rings
L. Christley - W3EYE Amateur Extra
Blue Ridge Mountains, S.W. Virginia
It's the education gained, and the ability to apply, and share, what we learn.
Have fun, be great, that way you have Great Fun!

sledhead

I started using kitec years ago and that is what I used to do the radiant floor heat on the coach in 2005 . Now I use the pex same but different . I was helping my son redo his pump-water heater room on his old house and was telling him how great this stuff was and how I never had a leak . When we turned on the water he sez to me no leaks ah whats that drip from ? Crap in all the crimps I was doing I forgot to crimp 1 joint . The system was at 50 lbs and it was dripping about every 3-4 seconds . No problem pull out the crimp-er and all was good and that's the only leek I have ever had . In this day and age why would any one use any think else   

dave
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada

luvrbus

LOL I remember back in the 80's and 90's Polybulylene as the rage of the future then they found the chlorine in the water systems made it fail but they still use it in RV's today 
Life is short drink the good wine first

lostagain

My bus's plumbing is made entirely of polyB. 1989 conversion. I have already replaced small sections of it when it splinters. It gets brittle with age. Soon I need to replace it all with Pex.

JC
JC
Blackie AB
1977 MC5C, 6V92/HT740 (sold)
2007 Country Coach Magna, Cummins ISX (sold)

luvrbus

I use it but I am not 100% sold on the stuff to many class action law suits popping up here in AZ I see where Kitec settled for 90 million on a class action suit   
Life is short drink the good wine first

gumpy

Quote from: luvrbus on January 02, 2015, 06:36:36 PM
Which is better for a bus the Pex with the oxygen barrier or without the barrier ? lol I notice I am using both on the house and cannot tell the difference unless I read the label   

Oxygen barrier PEX is typically used in heating systems which are pressurized. It keeps oxygen from getting into the system and causing rust in steel boilers. I used barrier PEX
in my heating system because the AquaHot has a steel tank. I used regular pex for my fresh water system.

I'm sold on it. Installation is easy. It's durable. I made my own manifolds using copper and brass quarter turn ball valves.

I used permanent crimp rings on the heating system, but used the removable fittings on the fresh water system.

BTW, if anyone needs some of the plastic fittings, I bought 1000 of them when the mfg changed styles. I have about 600 of them left over. Will make you a good deal on them.

Craig Shepard
Located in Minnesquito

http://bus.gumpydog.com - "Some Assembly Required"

sledhead

can't remember but was the law suit for the fittings not the pipe ? hope so because I have the kitec pipe in the coach and 3 other buildings ( floor heat and plumbing ) no problems to date and I did the first building in 1999

dave
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada

luvrbus

I don't know Dave I just remember in Vegas they removed the Pex out of 5000 homes and re plumbed with what I don't know,here they are starting to have failures they have issued a stop of Pex use in new home construction ,but you can use it to re plumb a older dwelling it makes no sense to me  
Life is short drink the good wine first

Dave5Cs

Here in California they ran copper in concrete many years ago without the neoprene sleeves as they do now. They all over time failed and would just cut them off and re run pex over top to re plumb all baths kit, etc. At a time also PB pipe made in India was use and they have to disclaim it when selling a home with that. Then there's the ABS from Mexico that was failing at the joints on the sewer side. Sheetrock that gased out toxins from China here only a few years ago and they had to tear out whole houses of rock. Maybe it might make sense to have us make our own stuff again even though it is expensive. :o

Dave5Cs
"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
2001 Jeep Cherokee Sport 60th Anniversary edition.
1998 Jeep TJ ,(Gone)
Somewhere in the USA fulltiming.

sledhead

The stuff they are trying to push on me now is wirsbo kind of the same pipe as pex but you use a expander tool that you use to install the plastic ring . I still like the pex rings that you crimp that they sell at canadian tire and homehardwere and home depot at least you can get them on the weekend unlike wrsbo which you have to get from a plumbing wholesaler only open mon-friday

dave   
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada