pipe + nipples

[Garry ColesParticipant @garrycoles69390]

Hi. I was wondering whether to solder or silver solder 5/32 copper pipe to the nipples. My working steam pressure is 90 PSI and I would have thought soft soldering would be strong enough. Can some one advise me please.

Garry

[Garry ColesParticipant @garrycoles69390]

[Philip RoweParticipant @philiprowe13116]

Silver solder every time. Whenever in the past I have soft soldered nipples I have always regretted it as they inevitably fracture/break. Phil

[Keith HaleParticipant @keithhale68713]

Hi Gary,

Aim for a joint gap of about 0.1mm radial.

Aim for a joint length of 5-6x wall thickness of the tube.

Ensure components are free of grease. Use appropriate flux.

Ideally position soft solder (ring?) Inside the nipple. Like a Yorkshire fitting

Heat the nipple to draw the solder through the joint.

90 psi? a walk in the park.

Expect a joint strength 100 x that

Regards

Keith

[MichaelRParticipant @michaelr]

I agree with Phil, I always silver solder pipe and nipples and never had bother with fractured joints.

If your pipe work is for your William Loco or that D&NY you show in your album then your pipe work needs to be silver soldered.

Michael.

Edited By MichaelR on 04/03/2021 15:31:25

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