ptfe tubing imperial size
What is a 1/4" PTFE Tube?
A 1/4" PTFE tube refers to a tube with an diameter of 1/4" (0.250 inches) made from PTFE material, a fluoropolymer renowned for its chemical 
resistance and thermal stability. This tubing is widely used in chemical processing, pharmaceutical manufacturing, the food industry, and many more applications, making it a favored choice for its reliability and outstanding performance.
Smooth imperial PTFE Tubing
Features: Smooth PTFE tubing has a slick internal and external surface, which ensures minimal fluid resistance and allows for easy cleaning and maintenance. Applications: This type is ideal for applications requiring high flow rates, such as laboratory processes, pharmaceutical applications, and chemical transfer, where contamination must be avoided.
| ID(inch） | OD(inch） | ID(mm) | Wall(mm) | OD(mm) | Tolerance(mm) | Length(M） | Pressure (bar) | Product code |
| 1/32" | 1/16" | 0.79 | 0.4 | 1.59 | ±0.1 | 100/200/300 | 30 | suniu01 |
| 1/16" | 1/8" | 1.59 | 0.80 | 3.18 | ±0.1 | 100/200/300 | 23 | suniu02 |
| 1/16" | 3/16" | 1.59 | 1.59 | 4.76 | ±0.1 | 100/200/300 | 18 | suniu03 |
| 3/32" | 1/8" | 2.38 | 0.4 | 3.18 | ±0.1 | 100/200/300 | 18 | suniu04 |
| 1/8" | 5/32" | 3.18 | 0.4 | 3.97 | ±0.1 | 100/200/300 | 18 | suniu05 |
| 1/8" | 3/16" | 3.18 | 0.79 | 4.76 | ±0.1 | 100/200/300 | 15 | suniu06 |
| 1/8" | 1/4" | 3.18 | 1.59 | 6.35 | ±0.1 | 100/200/300 | 15 | suniu07 |
| 5/32" | 1/4" | 3.97 | 1.19 | 6.35 | ±0.1 | 100/200/300 | 13 | suniu08 |
| 11/64" | 1/4" | 4.35 | 1 | 6.35 | ±0.1 | 100/200/300 | 11 | suniu09 |
| 3/16" | 1/4" | 4.76 | 0.8 | 6.35 | ±01 | 100/200/300 | 11 | suniu10 |
| 1/4" | 5/16" | 6.35 | 0.8 | 7.94 | ±0.1 | 100/200/300 | 9 | suniu11 |
| 1/4" | 3/8" | 6.35 | 1.59 | 9.52 | ±0.1 | 100/200/300 | 9 | suniu12 |
| 5/16" | 3/8" | 7.94 | 0.79 | 9.52 | ±0.1 | 100/200/300 | 8 | suniu13 |
| 3/8" | 7/16" | 9.52 | 0.8 | 11.11 | ±0.1 | 100/200/300 | 8 | suniu14 |
| 3/8" | 1/2" | 9.52 | 1.59 | 12.7 | ±0.15 | 100/200/300 | 7 | suniu15 |
| 7/16" | 1/2" | 11.11 | 0.8 | 12.7 | ±0.15 | 100/200/300 | 7 | suniu16 |
| 1/2" | 9/16" | 12.7 | 0.8 | 14.3 | ±0.15 | 100/200/300 | 7 | suniu17 |
| 1/2" | 5/8" | 12.7 | 1.59 | 15.87 | ±0.15 | 100/200/300 | 6 | suniu18 |
| 9/16" | 5/8" | 14.3 | 0.78 | 15.87 | ±0.15 | 25/50 | 5 | suniu19 |
| 5/8" | 11/16" | 15.87 | 0.8 | 17.46 | ±0.15 | 25/50 | 4.5 | suniu20 |
| 5/8" | 3/4" | 15.87 | 1.59 | 19.05 | ±0.15 | 25/50 | 4 | suniu21 |
| 3/4" | 7/8" | 19.05 | 1.59 | 22.23 | ±0.15 | 25/50 | 5.5 | suniu22 |
| 7/8" | 1" | 22.23 | 1.59 | 25.4 | ±0.15 | 25/50 | 5 | suniu23 |
1/4" Convoluted PTFE Tubing
Features: Convoluted PTFE tubing features a ribbed or corrugated surface design, which enhances flexibility and reduces kinking while maintaining the same outer diameter.
Applications: This type of tubing is often utilized in applications with tight bends and flexible routing, such as in robotic applications, automotive systems, and aerospace components.
Advantages: The convoluted structure provides excellent ability to withstand motion and vibration, making it suitable for dynamic applications that require movement without compromising flow.
Tolerance Levels Tolerance refers to the permissible range of variation from a specified dimension. High-quality manufacturers typically provide 1/4" PTFE tubes with tolerance levels usually within ±0.005 inches. Importance of Tolerance: Strict tolerances ensure that the tubing fits perfectly with other components and systems, preventing leaks and ensuring optimal performance. Application Cases: Maintaining stringent tolerances is particularly important in fields requiring precise control, such as medical devices or precision instruments. Strength and Durability The strength of a 1/4" PTFE tube depends on several factors, including the thickness and quality of the PTFE material used. PTFE is known for its excellent tensile strength and ability to withstand high temperatures. Mechanical Properties: PTFE tubes generally exhibit good resistance to deformation under load and can handle thermal shocks, making them suitable for various applications. Longevity: These tubes have a long lifespan, resisting degradation from chemicals, making them ideal for continuous operations in harsh environments. Color Options While PTFE is typically transparent or white, many manufacturers offer color options for identification and branding purposes. Common colors include blue, green, and red, which can help differentiate tubing in complex systems. Color Coding: Utilizing different colors in PTFE tubes can significantly improve safety and organization in workplaces, helping to quickly identify specific lines or systems.