Polybutylene (PB) or cross-linked polyethylene (PEX) barrier pipe for central heating

[cascas]

[h=2]There is a Polybutylene PB and polyethylene PEX pipe. Both are barrier pipes for water & central heating Is one or other better for central heating. I have googled, but cant find the answer.

What are the pros / cons of each? [/h]

 

[SimonG]

Re: Polybutylene (PB) or cross-linked polyethylene (PEX) barrier pipe for central hea

Ones easier to work with, lot more flexible. Can't remember which one.

 

[cascas]

Re: Polybutylene (PB) or cross-linked polyethylene (PEX) barrier pipe for central hea

Seems like PEX is prefered in the united states, and that Polybutylene water pipes are no longer accepted by United States or Canadian building codes. http://www.polybutylene.com/

However polypipe advocate PB over PEX. http://toolbox.polypipe.com/sites/default/files/php5_april_for_web_0.pdf

At the heart of our systems is our commitment to polybutylene
pipe. Unlike a number of other plumbing manufacturers, we
choose polybutylene to create the most flexible and efficient
pipes and plumbing systems available. Polybutylene pipe is
ideal for both domestic hot and cold water plumbing and
heating systems, offering exceptional durability and long-term
performance, which has seen it become the preferred material
choice for today’s building projects

 

[shneld]

Re: Polybutylene (PB) or cross-linked polyethylene (PEX) barrier pipe for central hea

bpex is the one to use i belive. The 'b' refers to barrier and not allow oxgen to pass throught the pipe wall.

Something like that.