Unfamiliar Unit
by Dennis Lee on 10/24/04 at 19:44:27

Hi, I had met a unfamiliar unit "NB. B.S.P.", I have no idea what this unit is. Can anyone please advise me on this.

By the way, I set an example of it.

Under this type of boiler model
Steam Outlet = 25 NB B.S.P.
Boiler Feed inlet = 20 NB B.S.P.
etc


Appreciate if you could help me on this. Thanks

Re: Unfamiliar Unit
by Robert Fogt on 10/24/04 at 22:10:21

Those are not units, but rather types of pipe fittings.

NB = Nickel Plated Brass
BSP = British Standard Pipe

The 20 or 25 before it is possibly the size in millimeters. 25 millimeters is close to 1 inch, are they 1 inch pipes?

Re: Unfamiliar Unit
by Robert Fogt on 10/24/04 at 22:19:36

After additional thought, I imagine the numbers 20 and 25 could stand for the threads per inch of the pipe adapters. That might make more sense. Not sure about that part though.

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