Pex-al-Pex Crimp ?

Pex-al-Pex Crimp ?

PostBy: coalboy On: Mon Jun 30, 2008 6:37 am

I'm going to be useing 1'' pex-al-pex. My Question is, Can you use the crimp rings around fittings,or must you use compression type fittings.
coalboy
 
Stove/Furnace Make: AxemanAnderson
Stove/Furnace Model: 1949 AA130

Re: Pex-al-Pex Crimp ?

PostBy: Steve.N On: Mon Jun 30, 2008 8:35 am

You must use the compression fittings. The al-pex is a different size than straight pex.
Steve.N
 
Stove/Furnace Make: Harman mkII
Stove/Furnace Model: Axeman Anderson 260 at store

Re: Pex-al-Pex Crimp ?

PostBy: Bob On: Mon Jun 30, 2008 10:09 am

Crimp fittings and tools are available for pex al pex. However the sizing is different than for pex. You cannot use pex crimping tools or fittings on pex al pex.
Bob
 
Stoker Coal Boiler: AHS 130
Coal Size/Type: Pea/Anthracite


Re: Pex-al-Pex Crimp ?

PostBy: LsFarm On: Mon Jun 30, 2008 11:52 am

Personally I wouldn't use a crimp type fitting on Pex-Al-Pex.. the compression fittings I use are very good, have double 'O' rings that can be replaced if needed.. The fitting can be taken apart,, something a crimp connection cannot do.. Plus, if a crimp leaks, you cut it off, buy another connector/fitting and try again, maybe with too-short tubing ... With the compression connector, you use standard tools, you can replace the 'O' rings if needed, and you can even use some RTV sealant if you need...

Greg L
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: Pex-al-Pex Crimp ?

PostBy: coalboy On: Sun Jul 13, 2008 8:09 am

I have 1" pex-al-pex compression fittings,for 1" pex-al-pex pipe..But it seems like,I'm going to have to ream the pipe real good to get the compression fitting in.Does this sound right. :?:
coalboy
 
Stove/Furnace Make: AxemanAnderson
Stove/Furnace Model: 1949 AA130

Re: Pex-al-Pex Crimp ?

PostBy: 218Bee On: Sun Jul 13, 2008 10:45 am

Yes, you need a good bevel on the pipe. We lubed the fitting heavily and had to wack the fitting in, protecting it with a piece of wood.
218Bee
 
Stove/Furnace Make: Keystoker
Stove/Furnace Model: KA-6

Re: Pex-al-Pex Crimp ?

PostBy: coalboy On: Sun Jul 13, 2008 10:55 am

What did you use as lube?
coalboy
 
Stove/Furnace Make: AxemanAnderson
Stove/Furnace Model: 1949 AA130

Re: Pex-al-Pex Crimp ?

PostBy: 218Bee On: Sun Jul 13, 2008 11:02 am

A tin of "3in1" was the closest thing on the shelf.

They seated pretty well with a little persuasion.

Edited in light of Bobs post.
Last edited by 218Bee on Sun Jul 13, 2008 11:12 am, edited 1 time in total.
218Bee
 
Stove/Furnace Make: Keystoker
Stove/Furnace Model: KA-6

Re: Pex-al-Pex Crimp ?

PostBy: Bob On: Sun Jul 13, 2008 11:05 am

I would avoid petroleum based lubricants. Use a silicone grease intended for an "O" ring. If that is not available a soap and water solution would be preferable to petroleum based lubricants.
Bob
 
Stoker Coal Boiler: AHS 130
Coal Size/Type: Pea/Anthracite

Re: Pex-al-Pex Crimp ?

PostBy: LsFarm On: Sun Jul 13, 2008 12:20 pm

I honestly didn't have any problem sliding the PexAlPex over the O rings.. I used a 'rounding tool' to make sure the tube was round, and put a very slight bevel on the inside of the Pex.. with a pocket knife,, not much of a bevel, at the most a 45* to the aluminum...

I didn't have to force any fittings,, they slide on with a little spit or water.. you could use silicone or similar lube.. use a fitting without O rings as a trial tester,, just to make sure your pex IS round,, this would be the only reason for needing to force the fitting..

Greg L

If all else fails.. get a bigger hammer.. works with dentistry,, but not plumbing !! :lol: :D
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: Pex-al-Pex Crimp ?

PostBy: Yanche On: Sun Jul 13, 2008 1:54 pm

While I haven't tried this with PEX, an electric heat gun will warm the pipe and allow it to expand. Works well with other types of flexible plastic piping. I'd try it first on a scrap piece. My heat gun is like a industrial heavy duty hair dryer.
Yanche
 
Stoker Coal Boiler: Alternate Heating Systems S-130
Coal Size/Type: Anthracite Pea

Re: Pex-al-Pex Crimp ?

PostBy: biggreen1 On: Tue Jul 15, 2008 6:41 pm

Is there a good online source for pex-al-pex compression fittings?. My local plumbing store has no clue about anything having to do with pex-al-pex.
biggreen1
 

Re: Pex-al-Pex Crimp ?

PostBy: LsFarm On: Tue Jul 15, 2008 8:31 pm

Ebay is where I bought most of mine, or at an outdoor wood boiler outlet.
Here is one seller on ebay:

http://cgi.ebay.com/1-PEX-AL-PEX-FITTING-LK-KITEK-OUTDOOR-WOOD-BOILER_W0QQitemZ350008808629QQihZ022QQcategoryZ63902QQrdZ1QQssPageNameZWD1VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247
This link is broken, either the page no longer exists or there is some other issue like a typo.
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: Pex-al-Pex Crimp ?

PostBy: coalboy On: Tue Jul 15, 2008 8:40 pm

The Ebay site Lsfarm is talking about.Is where i bought mine.Good service fast shipping.
coalboy
 
Stove/Furnace Make: AxemanAnderson
Stove/Furnace Model: 1949 AA130

Re: Pex-al-Pex Crimp ?

PostBy: biggreen1 On: Tue Jul 15, 2008 9:23 pm

Ebay, I should have known. Thank you
biggreen1