1/4 NPT Female Thread Dimensions
Overview
The 1/4 NPT (National Pipe Taper) female thread is a common thread type used in piping systems for various industries, including oil and gas, chemical processing, and power generation. The 1/4 NPT female thread is used to connect pipes, fittings, and valves, ensuring a secure and leak-tight seal.
Dimensions
The 1/4 NPT female thread has the following dimensions:
- Major Diameter: 0.540 inches (13.7 mm)
- Pitch: 14 threads per inch (TPI)
- Thread Length: 0.375 inches (9.5 mm)
- Width Across Flats: 0.500 inches (12.7 mm)
- Thread Angle: 60 degrees
Thread Form
The 1/4 NPT female thread has a taper of 3/4 inch per foot, which means that the thread diameter decreases by 3/4 inch for every 12 inches of thread length. This taper allows for a self-sealing connection when mated with a corresponding male thread.
Applications
The 1/4 NPT female thread is commonly used in various applications, including:
- Piping systems: for connecting pipes, fittings, and valves in industrial processes
- Hydraulic systems: for connecting hydraulic hoses and fittings
- Aerospace: for connecting fuel lines, hydraulic lines, and other systems in aircraft and spacecraft
Conclusion
In conclusion, the 1/4 NPT female thread is a widely used thread type in various industries, ensuring a secure and leak-tight connection in piping systems. Understanding the dimensions and thread form of the 1/4 NPT female thread is crucial for selecting the correct components and ensuring the integrity of the system.
