There should be brass or aluminum "insert" fittings available that adapt to a
few sizes. I'm looking at a catalogue now that has brass insert couplings in
1/2"id X 3/8" id......and a 1/2" id X 3/4" id. These are in a plumbing
catalogue. They would be available through a plumbing supply house or a mobile
home supply company. They normally have 4 barbs on each side and used under
high
pressure they are double clamped. I have used these on residential water
lines and they will hold 100 lbs. pressure.
Mark L.
PS But, I do like the idea of a home made piece.
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