Need a 28mm - BSP swept bend

I have a device (which provides low pressure air flow) that has a male 1" BSP thread on the end ..... this goes into a clearance hole and fastened by a 1" BSP nut.

I want to move this out so that it joins via a swept bend something less than 90 degree (70 or 80 would suffice) or 110 degree if looking at the bend angle.

I need 1" BSP parallel male thread on one end and 1" BSP parallel female on the other.
something like:
https://imgur.com/a/puIIz3d

My thought are I take a piece of 28mm copper pipe, bend to a suitable radius.
On one end solder a 28mm x 1" BSP male endfeed
https://tinyurl.com/rf8dlwa


On the other a 28mm x 1" BSP Female endfeed
https://tinyurl.com/ssgkrng

Does anybody know of a neater way ?

Needs to be copper or brass - not iron

Is 90° no good? https://aquafax.co.uk/catalogue/15112-elbows

A normal 90° elbow is too sharp, will cause air flow problems. I see they do a F to F swept bend ...... (didn't know they existed) maybe that with a Males nipple in the one end to make it M to F

RickH said:

I see they do a F to F swept bend

Click to expand...

They do a M to F swept bend on the same link which was the one I meant. It is still 90° though.

I looked at that item .... it is swept enough to be OK .... the issue is it taper male thread, not sure if a normal 1" BCP nut will then fit.
The existing item I have has 1" BSP male parallel threads. So nut I have to use works on parallel threads.

https://aquafax.co.uk/product/1-72703-swept-bend-mf-brass-1bsp

If it has to be swept and non ferrous, 2 x 45 deg bends joined with hex nipple and the other for your bsp paralell thread you need for the backnut.

https://www.jtmplumbing.co.uk/pipe-...-150lb-316-stainless-steel-pipe-fittings-c876
ASS0106 1" 45° Elbow BSP 150lbs 316 Stainless Steel x 2
ASS2106 1" Barrel Nipple BSP 150lbs 316 Stainless Steel x 1


https://www.jtmplumbing.co.uk/pipe-...tm-threaded-brass-brass-running-nipple-p10607
TB70RN 01 Brass Running Nipple 1" x 1