I use various types of compressed air tools in my workshop on a
regular basis - nailers, sprayers, wrenches etc.
Long trailing hoses across the floor are a pain and a trip hazard so I
want to put in permanent pipework around the walls and across the
ceiling with outlets at strategic points.
So the question arises as to what to use. There appear to be three
- Black steel tube (BS1387). This appears to be the common choice
and pretty cheap, but probably the most difficult to work with,
needing the pipe ends threaded etc.
- Copper tube. This would be convenient and easy to work. I did
some Googling and found several references to doing this in the U.S.,
although one article mentioned that their type M tube (0.81mm wall
thickness in 3/4") was not thick enough and that type K or L should be
used - 1.65mm and 1.1mm in 3/4"
Translating this, table X tube in 22mm has a thickness of 0.9mm and
table Y has 1.2mm..... so the table Y would appear to be thick
enough but the commonly available table X is apparently not.
One article also suggested that brazing rather than soft soldering was
Can anyone shed any light on this or suggest a source of table Y tube?
- Plastic pipe. John Guest make a blue coloured nylon pipe and
fittings claimed to be for compressed air, and Durapipe make something
similar in a special form of ABS, although I can't find a supplier at
this point. Again referring to U.S. articles, plastics seem to be
deprecated by the safety organisation, OSHA. The concern appears to
be not so much whether it can stand the pressure, but more about what
would happen on failure (e.g. from mechanical damage) - thought to be
shards of plastic exploding everywhere. Since that could spoil
one's weekend I feel rather dubious, easy to fit though this is.
Has anyone implemented a compressed air distribution system or know
about any of these techniques?
The compressed air will be via a regulator and in the normal 6-8 bar
TIA for any useful data
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