6mm & 4mm solder end caps...

[Nicko]

Hi - Hope it's OK to ask this sort of question here - not had much luck elsewhere due to the sizes being a bit small...

I'm looking for a source of 6mm (and 4mm) solder end caps - that is soldered (not compression) end caps for 6mm (and 4mm) OD copper pipe. 1/4" would probably do for the 6mm ones, but I can't locate any of those either.

If anyone has any idea where I can source a few, I'd be very grateful - all the usual suspects only stock from 8mm up...

Cheers

Nick

[alanstepney]

1/4" is still used for Calor (and probably other LPG) so if you have a Calor stockist in your area , it may be worth calling in to see what they stock.

Dont know about 4mm. I would just make some. Might be a lot quicker than searching for them.

[durhambuilder]

Could you use plugs (inside the tube) rather than caps?

[Nicko]

Yup - I've turned some plugs and will solder those in place. Doesn't look as good, but it'll do.

I've access to a laser cutter via my sons' school (what is the world coming to!) for the rest of the work I need to do... (takes DXF files direct from SolidEdge)

Cheers

[mikerobinson]

I think you should go for the online shopping sites. Because now there are so many sites which are providing all sizes of end caps.

plastic caps | end cap

[cupalloys]

Hi Nicko

Make your plugs in a top hat style so there is a shoulder to rest on the tube wall.
Apply solder internally as paste or ring or a simple cut piece of solder.
Flux and assemble.
Heat the joint from the outside, melting the alloy and drawing it through.
Result - a joint stronger than the parent materials and a challege to see the joint.

regards

keith

[springbok]

Hi Nico
have about 20m of o/d copper tube in variouse sizes could you send me dimensions and I will gladly post you bits no charge.
Keith thanks for that tip. when are you going to do another talk to our society.
Bob Thomson Bristol SMEE.

[cupalloys]

Hi Bob,

The same conditions apply to BSMEE as everybody else. Ask!!!

regards

keith