joining 10mm copper pipes

[apcdave]

Hi guys,

need to repair a 10mm pipe running from oil tank to boiler ? will use compression fittings but what additional jointing method do you recommend?

cheers

dave

 

[WHPES]

Personally I always use Stag paste (or other jointing compound suitable for oil) but if you don't have any then a few turns of PTFE round the olive would do.

Don't overtighten or you will squash the pipe.

NEVER soldered fittings!

 

[fuzzy]

can you not solder a fitting?

 

[stevetheplumber]

ptfe tape isnt much good on oil seems to run through it

 

[fuzzy]

i think stag is designed for oil

 

[WHPES]

No, oil lines must never be soldered! (states in OFTEC regulations). Fuel oil can attack soldered joints.

Yes, Stag is designed for oil and water.

 

[fuzzy]

No, oil lines must never be soldered! (states in OFTEC regulations)

ok thanks, whys that?

 

[Robtheplumb]

ok thanks, whys that?

If there is a fire it will melt the solder, joint then fails and adds fuel to the fire. That is what I was told today.

 

[kirkgas]

If there is a fire it will melt the solder, joint then fails and adds fuel to the fire. That is what I was told today.

not doubting this, but surely the same with gas, i thought oil "rotted" the solder (perhaps i am doubting what was said!!!!!!!!)

 

[fuzzy]

Ifs and buts eh?
Dont cross the road you may get run over by a bus, dont fly abroad you may get stuck there if a volcano goes off, we are really entering cooku land now!

 

[dontknowitall]

You also require oil pipe sleeves as a straight compression joint doesn't meet OFTEC rules.

 

[WHPES]

Are we getting mixed up with PEX oil lines? Must be the special metal PEX insert for the green pipe (don't use Hep20 ones)

Should be non-manipulative (flared) joints underground if you are using soft copper.

 

[Robtheplumb]

You also need a steel insert if using brass olives on an oil line as these are harder than copper the pipe can be crushed.

 

[moony]

Are we getting mixed up with PEX oil lines? Must be the special metal PEX insert for the green pipe (don't use Hep20 ones)

Should be non-manipulative (flared) joints underground if you are using soft copper.

manipulative joints - whpes are the flared type - but im sure it was just a typo matey, i know you know your stuff