1/4 NPT Dimensions in MM: A Comprehensive Guide
The 1/4 NPT (National Pipe Taper) thread is a widely used standard for piping and tubing connections in various industries, including oil and gas, chemical processing, and aerospace. When working with 1/4 NPT threads, it's essential to understand the dimensions in millimeters to ensure proper connection and assembly.
** Thread Dimensions **
The 1/4 NPT thread has a major diameter of 13.2 mm and a pitch of 1.5 mm. The thread angle is 60 degrees, and the thread form is a tapered thread.
** Major Dimensions **
The major dimensions of the 1/4 NPT thread are as follows:
- Major Diameter (D): 13.2 mm
- Pitch (P): 1.5 mm
- Thread Length (L): 10.2 mm
** Minor Dimensions **
The minor dimensions of the 1/4 NPT thread are as follows:
- Minor Diameter (d): 11.1 mm
- Thread Root Radius (r): 0.25 mm
- Thread Crest Radius (R): 0.38 mm
**Thread Form **
The thread form of the 1/4 NPT thread is a tapered thread, which means the major diameter decreases as you move away from the thread root. This tapered thread form allows for a more secure connection and helps to prevent leakage.
Applications
The 1/4 NPT thread is commonly used in various applications, including:
- Piping and tubing connections in oil and gas, chemical processing, and aerospace industries
- Hydraulic and pneumatic systems
- Industrial machinery and equipment
Conclusion
In conclusion, understanding the dimensions of the 1/4 NPT thread in millimeters is crucial for ensuring proper connection and assembly in various industrial applications. By knowing the major and minor dimensions, thread form, and applications of the 1/4 NPT thread, you can ensure a safe and reliable connection.
