Full definition
Pneumatic tubing is a crucial component in pneumatic systems, serving as the conduit for compressed air to reach various pneumatic tools and actuators. The flexibility and durability of the tubing are essential for ensuring efficient operation and longevity of the pneumatic system. There are several materials used in the fabrication of pneumatic tubing, each offering distinct advantages. Polyurethane (PU) tubing is known for its excellent flexibility and resilience, with a Shore A hardness of approximately 95. It operates effectively in temperatures ranging from -35°C to +60°C, making it suitable for a wide range of applications. Nylon (PA12) tubing, on the other hand, provides higher pressure resistance and is less flexible, making it ideal for applications requiring a stiffer structure. Polyethylene (PE) tubing is the most economical option, often used in less demanding applications where high flexibility is not a primary requirement.
Standard outer diameters (OD) for pneumatic tubing typically include sizes such as 4, 6, 8, 10, 12, and 16 mm, accommodating various flow rates and installation spaces. The maximum pressure ratings for these tubes can range from 8 to 15 bar, depending on the material and diameter. The selection of tubing must take into consideration the specific requirements of the application, including pressure, temperature, and flexibility needed to navigate through the installation environment. According to ISO 7751, proper standards must be adhered to ensure compatibility and safety in pneumatic system designs.
In industrial settings, pneumatic tubing is integral to automation processes, connecting valves, actuators, and various tools that require compressed air. The ability to easily route and install these tubes often allows for greater design flexibility and efficiency in factory layouts. As such, careful selection of the appropriate tubing material and size is critical for optimizing system performance and avoiding potential failures due to material fatigue or pressure loss.