NDE
NDE is an abbreviation of Non Destructive Examination, also called Non Destructive Testing (NDT).
Non Destructive Examination survey techniques by which we can get an impression of the quality of an item to consider this item without damaging them.
To detect different defects such as cracking and corrosion, there are different methods of testing available like, X-ray, Ultrasonic testing (UT), Magnetic-particle inspection (MT or MPI), Liquid penetrant testing (PT or LPI) etc..
NPS
NPS is an abbreviation of Nominal Pipe Size.
Nominal Pipe Size is a North American set of standard sizes for pipes used for high or low pressures and temperatures. The name NPS is based on the earlier "Iron Pipe Size" (IPS) system.
NPT
NPT is an abbreviation National Pipe Thread Tapered.
The American National Pipe Thread Tapered, is the best known and most widely used connection where the pipe thread provides both the mechanical joint and the hydraulic seal. NPT has a tapered male and female thread which seals with Teflon® tape or jointing compound.
ASME B1.20.1 covers dimensions and gaging of NPT pipe threads for general purpose applications.
