NPT are common threads used for general purposes, while FPT are a type of NPT. NPTs and FPTs are used to join pipes and fittings for all types of general purposes. This includes things such as joining low pressure air or liquid needs. They are also used for many mechanical applications.What does FNPT mean in plumbing?
RE: What's mean of PE+FNPT. PE stands for Plain End, which means that the end connection is a straight part (e.g. by means of a welded in Nipple or integral machined to forged body) with straight end, so no bevel machined to it. This type of end connection specified for socket weld piping systems.What does FNPT mean?
NPT. NPT stands for National Pipe Thread and is an American standard thread. It may also be reffered to as MPT, MNPT or NPT (M) for male external threads and FPT, FNPT or NPT (F) for female interal threads.