CZ121 brass

Silver Solder 55%

The first pic shows a pipe with what looks like a metric brake pipe flare, the second is odd. The first will take a normal cone fitting the other will need either a flat face or machining to take a cone. Jason has shown a brass and solder.  Noel.

Greetings HD64, I would make a copper ring, and silver solder it to the end of your existing pipe, having first cut off the old ferrule, not forgetting to retain the nut in place, then just tighten gently in place and the soft copper will mould into the shape required to give a good seal.

Much stronger than sleeve type ferrule, usually made from brass, which break more easily.

Regards

Brian B

I see we have discussed this in another place.  Anyway, there is nothing inherently wrong with a pipe flare.  It is quick, strong & avoids soldering.  I used them on my steam lorry project as I hate making brass olives and sleeves.

However, what you have there are badly formed fllares.  So I would be looking to make some decent tooling that will reliably make good flares.  I bought a brake pipe flaring tool for 3/16 pipe and it is pretty simple to reproduce in different sizes.

If you go down the soldered nipple route, brass nipples and silver solder is the way to go.  Copper sleeves will also work well and very economic if you can find stacking tube sizes.

Martin