SI units for pipe thread 3

[ITBT]

Hi,

Can anybody provide some idea on SI units for pipe thread? One customer requirement is to use SI units for my proposed port size (female socket) 1-1/2"BSPP and 2"BSPP. Does it mean I must use metic size of M48x2 and M60x2 ? Thanks!

 

[notnats]

We call it 40NB and 50NB pipe and 40BSP and 50BSP threads. BSPT if it's tapered. But I am noticing some pipe taps are now marked G 1-1/2 or G 2, which is the topic of earlier threads.

Jeff

 

[jsummerfield]

International nomenclature exists for pipe flanges. Even on a metric project we refer to 1/2-inch female NPT, etc. European threads exist.

You might just stick with your American thread designations unless client requirements define other nomenclature.

John

 

[ITBT]

thanks, it's accepted by customer

 

[imagitec]

Norgren has a good reference for the various types and compatability of European and Japanese pipe threads. Be sure to scroll to the bottom for a text description.

http://webstore.usa.norgren.com/docs/pdf/Fittingthreadshelp.pdf

Rob Campbell, PE
Finite Monkeys -

http://www.livejournal.com/users/robcampbell