NPT Thread
h2>Definition
NPT thread (National Pipe Thread) is an American standard for tapered pipe threads with a 60° thread angle and a taper of 1:16.
Types
There are two main types:
- NPT (National Pipe Taper): tapered thread
- NPTF (National Pipe Taper Fuel): self-sealing tapered thread
Materials
NPT threads can be made from various materials, including:
- Brass
- Steel
- PVC
- Bronze
- Cast iron
Applications
NPT threads are used in:
- High-pressure applications
- Hydraulic systems
- Plumbing installations
- Gas transport
- Industrial piping systems
Maintenance and Care
NPT threads generally require an additional sealing compound or PTFE tape to ensure a complete seal.
Standards and Certifications
NPT threads are standardized according to ANSI B1.20.1.