Bronze tubing

[ghostlymoron]

I need some bronze tubing to replace one of the spigots on my water pump. It's 13.5mm OD and 2mm wall thickness. 33mm long. Any idea where I could find it.

 

[lw395]

Last time I was involved in something similar, the difficult thing turned out to be cutting the taper thread.

 

[earlybird]

You'll could purchase some hex. drawn bronze from say a model engineer supplier and have it machined up, (expensive route). Or, assuming a BSP thread, buy a DZR brass straight male hose tail from ASAP. (1/4" BSP to 13mm hose at a guess? which is ~£1.50 ), and some Loctite sealant.

 

[ghostlymoron]

You'll could purchase some hex. drawn bronze from say a model engineer supplier and have it machined up, (expensive route). Or, assuming a BSP thread, buy a DZR brass straight male hose tail from ASAP. (1/4" BSP to 13mm hose at a guess? which is ~£1.50 ), and some Loctite sealant.

That's a brilliant suggestion. Thank you.

 

[ghostlymoron]

Slight problem, the hose tails from ASAP are BSPP (parallel thread), I need BSPT (taper thread). I could probable get one re-cut though.
I've learned all sorts about thread types with this enquiry like tapered male will fit into parallel female but not contrarywise.

 

[prof pat pending]

Now you know what you're looking for a quick google should bring one up

 

[earlybird]

Slight problem, the hose tails from ASAP are BSPP (parallel thread), I need BSPT (taper thread). I could probable get one re-cut though.

By all means look for a taper thread, but I wouldn't get too hung up on it. A parallel thread with a good thread sealant will be just as good IMHO, (assuming it fits your pump thread).
Getting a thread re-cut might not be so easy. Taper dies cost a fortune, you need a very good reason to buy one in the first place.

 

[ghostlymoron]

By all means look for a taper thread, but I wouldn't get too hung up on it. A parallel thread with a good thread sealant will be just as good IMHO, (assuming it fits your pump thread).
Getting a thread re-cut might not be so easy. Taper dies cost a fortune, you need a very good reason to buy one in the first place.

The thread in the pump body is tapered.

 

[lw395]

What's wrong with the old tail?

http://www.thehosemaster.co.uk/bspt-hosetail-brass

How DZR that is might be another question.
You could use plastic if corrosion is your fear....

 

[ghostlymoron]

What's wrong with the old tail?

http://www.thehosemaster.co.uk/bspt-hosetail-brass

How DZR that is might be another question.
You could use plastic if corrosion is your fear....

The old tail is bust. My picture is of the other one.
Plastic is an idea. AFAIK the water pump doent get hot.

 

[David2452]

Aquafx stock bronze hosetails in BSPT from 1/4" to 1" 1/2"

 

[ghostlymoron]

Thanks David, their website shows various sizes but not 1/4" bspt male to 10mm hose. but it does show 1/4" bspt to 32mm hose! I've sent them an email.