large bore barrell pipe

[DaleRCL]

Hello, could anybody please advise me on the jointing of larger bore barrell pipes (1 1/2" and upwards) I usually work with copper and small bore barrell and just need to know if the jointing method is the same for larger bore barrell pipes.

ie; threading the pipe, wrapping in hemp and jointing compound and turning on the fitting.

Any advice or comments would be much appreciated

Thank you

 

[glasgowgas]

might be a scottish/english thing but what is barrell pipe. is it M.I (malleable iron), if so pipe vice, set of stocks n dies, tin of ronol, cut, screw, boss white ( gasseal if gas pipe) hemp, fittings on, tighten with a pair of stilsons, bobs your aunties fanny.

 

[bengasman]

Hemp? I thought we had moved on to teflon tape, unless it is a longscrew

 

[doitall]

It would be nice to know what's going in the pipes, as the jointing will be different.

Loctite 55 string is universal.

Gas over a certain size has to be welded and flanged.

For Heating, boss white and hemp is still the best.

 

[glasgowgas]

Hemp? I thought we had moved on to teflon tape, unless it is a longscrew

I think you are talking about one wrap gas tape, only use one wrap no jointing ( if pipe carrying gas ), Rocol Gaseal only,no one wrap PTFE (if pipe carrying gas), if pipe carrying lphw cannot beat boss white and hemp,been using it for 25 years without a problem. A longscrew!!! its the 21st century brother. Larger pipe carrying gas may well have to be welded & strength tested,purged,tightness tested.

 

[DaleRCL]

Thanks for the tips guys, much appreciated.

By the way, they are heating pipes in a school

 

[Biggles..]

Loctite 55 for me all ady long.

Which is kinda of a shame cos i love the smell of boss white.