British Standards
BSPP and BSPT Fittings
British
Standards
There are two types of British Fittings – British Standard
Pipe Parallel (BSPP) and British Standard Pipe Tapered (BSPT). British fittings are commonly used in the UK,
France, Japan, Scandinavia, and British Commonwealth countries such as New
Zealand, India, and Australia.
BSPP: BSPP female
and male fittings have a 30
° seat and straight threads.The female port has a spotface.The seal on the port is made with an O-ring
or a soft metal washer on the male.
BSPP
fittings are similar to, but not interchangeable with NPSM fittings.
While fittings with NPSM thread have a 60°
thread angle, BSPP fittings have a 55° thread angle.
BSPT: BSPT male
fittings have tapered threads.
BSPT male
couplers can mate with female BSPT and BSPP couplers.
When male fittings mate with female fittings,
the seal is made on the threads.
Just as
with BSPP, BSPT fittings are similar to, but not interchangeable with NPTF
fittings.
Once again, NPTF couplers have
a 60
°
thread angle and BSPT fittings have a 55° thread angle.
Find our selection of British fittings here.
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