My Plumber has just done a job for me. This was dis-connecting a radiator in the bathroom and replacing it with plastic Pipe Connectors (No soldering). The original pipework is the gravity feed pipes which supply the how water from the boiler which is downstairs. The advantage of this is to keep the towels dry when the central heating is switched off.
However, these pipe connectors are chunky and I have reservations about their reliabilty being "push-on" and not soldered on. I therefore went into Wickes Store and bought one of this type of connector to try and understand how it worked.
On the packet instructions it states inter alia that they are not suitable for gas, oil, compressed air or connection to back boilers and "gravity circulating heating pipes".
So could someone out there who is knowledgeable in this field explain to me 'why not' and again will I have water seepage/leaking in the time ahead at some point ???
2007-02-11 08:42:36 · 5 answers · asked by greatbrickhill 3 in Home & Garden ➔ Maintenance & Repairs
CPVC pipe is used for hot water piping, this is a plastic pipe. Usually a temperature of 200 F is a max temp. As mentioned before plastic pipe is not a very good idea for a heating system.
Here's a link to plastic pipe site for specs.
http://www.harvel.com/tech-specs-cpvc-pipe.asp
2007-02-11 10:46:26 · answer #1 · answered by etcher1 5 · 0⤊ 0⤋
plastic pipe should not be used for a boiler system. Copper pipe transfers heat very quickly, plastic won't. I've never heard of this being done before. If the original piping was copper it should remain copper. Personally I don't think plastic pipe or fittings will or would last in a heating system and would fail eventually.
2007-02-11 09:01:18 · answer #2 · answered by Anonymous · 0⤊ 0⤋
They rely on water presure to push the o rings into the sealing groove. The instructions are correct. The joint may well leak. Some pushfit makes are suitable for gravity feeds but generally they are not intechangeable with different makes. Many plumbers now use oushfit, its not necessarily a "cheap job". check with the plumber ( if you are still in contact ), maybe s/he used a type suitable for gravity systems. If the pushfit is conencted to copper then it wouldn't be a big job to change it for soldered connection ( nice and neat and small ) or compression. I find push fit too big for any exposed application. It is wise to ask a plumber what fittings s/he intends to use, but i guess you know that now. I do a lot of development work and my plumbers tend to use soldered copper. I can't think of any gravity part of a system where we've used pushfit - thats in about 15 houses.
2016-03-29 02:30:17 · answer #3 · answered by Shirley 4 · 0⤊ 0⤋
You can choose PPR (Polypropelene) pipes Which is having resistant to High Temperature (110 C). It has good insulation property.
2007-02-11 17:47:24 · answer #4 · answered by Einstein 2 · 0⤊ 0⤋
plastic plumbing pipes are for 'return' cold water only, usually used for drains, etc...
they cant stand up to hot or high pressure water, you need metal soldered pipes for that...
2007-02-11 08:54:40 · answer #5 · answered by zdonz 3 · 0⤊ 0⤋