Hi all,
Anyone recognise these items from a 1/8" copper pipe union? I need to order some more but don;t know what they're called. Never seen 'em before! The nut fits a 7/16 spanner and I particularly would like to know the designation of the conical olive shown.
Looks like some sort of "flare" fitting
No, I think it is a different shaped "olive". In the dim and distant past when I was in research, some of the nominal quarter inch stainless steel needle valves that we used for plumbing gas supply systems used olives this sort of shape. We normally only used stainless ones on stainless pipe. I can't recall for the moment the manufacturer (but there were only one or two).
Is it perhaps an adapting olive for a fitting that also takes somewhat larger microbore tube?
This web site sells 10mm flare fittings:
As a temporary arrangement I did manage to join two 1/4" (Imperial anyway) bits of copper pipe together using a 10mm solder fitting.
Nope. The bit in the picture shows the cleanly-cut end of the pipe where it terminates into the appliance - an oil-fired boiler - and as you can see, there is no flaring of the pipe. The olive itself performs the sealing action by the look of things. The raggedy end of the pipe went towards the fuel tank; it was brutally snipped off for the sake of expedience.
Swagelok was probably one of them.
SteveW
No. It's just a two part olive that grips the pipe in two locations, but both in the same direction, so less likely to pull through.
Swagelok and Parker-Hannifin (sp?) used to do them in stainless steel, for pressures of 6000 psi and higher. They were designed to be a precise fit, so tightness could be checked with a go/no-go gauge between the nut and fitting.
SteveW
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