Bergen Tyre Inflator Help With Thread Compatibility
Bergen Tyre Inflator Help With Thread Compatibility
Author
Discussion

Witterings

Original Poster:

41 posts

131 months

Monday 17th December 2018
quotequote all
I've got one of these cheap ish Bergen Tyre inflators which I think may have NPT rather than BSP threads on it

https://www.toolsandleisure.co.uk/us-pro-by-bergen...

I want to convert it so that I can have a combined Schrader and Presta head with something like one of these on the end but without destroying the whip that's on there if I ever wanted to go back to it
https://www.amazon.co.uk/SKS-Multi-Valve-Head-Valv...

The whip that's currently on the inflator has a 1/8" male thread that goes into the body and a 1/4" on the end the chuck attaches to.

My simple answer if it was BSP would be to buy one of these, screw it on the end and cut the end with the snap connector and fit the dual head on
https://www.machinemart.co.uk/p/clarke-2ft-air-lin...

If one is BSP and the other NPT ... are they compatible and would they do up and create a seal to use as inflator.

If anyone has any other ways on how to achieve the same end result I'd be interested as well!!

E-bmw

13,631 posts

183 months

Monday 17th December 2018
quotequote all
NPT & BSP at that size use the same TPI but different thread (one is 55 dag one 60, I forget which way round) angle, and of course NPT IS tapered, and BSP CAN BE tapered.

Either way they are as close as can be & with 3 wraps of PTFE tape the NPT male will seal in BSP female at the pressures that you will use it at without issue.

Witterings

Original Poster:

41 posts

131 months

Monday 17th December 2018
quotequote all
E-bmw said:
NPT & BSP at that size use the same TPI but different thread (one is 55 dag one 60, I forget which way round) angle, and of course NPT IS tapered, and BSP CAN BE tapered.

Either way they are as close as can be & with 3 wraps of PTFE tape the NPT male will seal in BSP female at the pressures that you will use it at without issue.
Brilliant .... cheers for that ... much appreciated !!! smile