Pressure testing

[Mgrant]

How do most people carry out wet pressure testing on plastic pipework, what pressure do you usualy take it up to? Is it higher than the 1.5 times working pressure that copper pipework is tested to.

 

[hammers4spanner]

18 bar i think speedfit say to test plastic

 

[Howsie]

18???

 

[on31ll]

Im with them 18 ? Sounds a bit drastic !

 

[jase158]

I usually do 1.5 times. please dont try 18 bar!!!

 

[plumber0808]

I normally do about 5 bar

 

[Mgrant]

I've usualy done 1.5times working pressure too, heard someone mention they tested plastics at higher though

 

[CXR100]

id never try 18, regs recomend 1.5 times max working pressure , (usually works out @ 4.5 bar)

 

[blade11]

How do most people carry out wet pressure testing on plastic pipework, what pressure do you usualy take it up to? Is it higher than the 1.5 times working pressure that copper pipework is tested to.

just ramp it up.... give it some..no leaks/... sound.

 

[Howsie]

150% is all that's required IMHO.

 

[Howsie]

I might try a test of SF, Hep and PP with my hydraulic tester at the weekend. For the craic you understand.

 

[hammers4spanner]

id never try 18, regs recomend 1.5 times max working pressure , (usually works out @ 4.5 bar)

sorry 10 bar speed fit

 

[WHPES]

6 bar is what I test at.

18 bar is probably suggested for testing hydraulics if you check with your instructions.

 

[hammers4spanner]

System Testing | Knowledge Centre | Plastic Plumbing

there you go ladies your all wrong 18 bar for poly plumb so you all been doing it wrong

 

[on31ll]

Am i missing a point by the way lads with air testing ? Sorry to hijack a thread but i read somwhere sombody saying i wouldnt wanna air test to 4 bar i use water much safer. But surely 4 bar is 4 bar weather it be air or water ? Fittings will blow off the same would they not ?

 

[plumber0808]

No way I would test plastic push fit at 18 bar!! That's a bum twitching moment

 

[Whn1]

Bang. Dead. Shoulda used an insert.

 

[hammers4spanner]

No way I would test plastic push fit at 18 bar!! That's a bum twitching moment

then your doing it wrong if your not ,the rings inside need to be stressed to hold properly

 

[on31ll]

I dont think id be able to keep it at 18 bar for 15mins id be a nervous wreck !

 

[on31ll]

Thinking about it used to put co2 lines in pubs and clubs that was all jonh guest push fit ! That eases my thinking a little bit !