NPT Fittings
Fitting Type:NPT
National Pipe Threads
Applicable Standard:
ANSI/ASME B1.20.1
ANSI/B1.20-3
Description
This is a very common connection. NPT adapters are used in general plumbing,
hydraulics and numerous other applications. The thread has a taper of 1 degree
and 47 minutes resulting in the tightening of the male into the female port. The
sealing (for pressure) surface is the threads. Stocked in 316 Stainless Steel
material.
Variations
There are two types of NPT connections, one an NPT, the other an NPTF. The
standard and most commonly used is NPT. It requires a sealing
compound such as teflon tape or pipe dope to help threads seal and also to
reduce friction while tightening. The other variation is NPTF also known as a
dry seal. It is built slightly different and is designed to seal without any
sealing compound although sealant can be used.
Sizes available
NPTs start at 1/16" and go very large, over many inches. We stock up to 3". Be
careful and not confuse the stated size with the actual measurement of the
threads. For example a 3" actually has a major OD (outside dimension) of 3.5".
Connections to NPTs available at PressureLinks
We stock NPT to NPT, NPT to JIC, NPT to Medium Pressure, NPT to BSP, NPT to High
Pressure, and NPT to Type M. |
