Product Overview
The Festo PUN-H-12X2-RT-25 (manufacturer ID 8204449) is a flexible polyurethane tubing designed for demanding pneumatic and fluidic applications. With an outside diameter of 12 mm and an inside diameter of 8 mm, this red tubing offers a balanced combination of flow capacity and compact routing. Its TPE-U (PU) material provides excellent flexibility and durability, making it suitable for dynamic installations, including energy chains. The tubing is hydrolysis-resistant, ensuring reliable performance in humid or water-contact environments, and is certified for food-grade use, meeting stringent cleanliness and safety standards.
Technical Specifications and Performance
The PUN-H-12X2-RT-25 operates effectively across a wide temperature range from -35°C to 60°C. It is rated for compressed air per ISO 8573-1:2010 [7:-:-] and can also handle water (liquid, ice-free). The operating pressure varies with temperature: for the entire temperature range, it supports -13.775 psi to 87 psi, while temperature-dependent conditions allow up to 145 psi. For water applications, the maximum pressure is 0.3 MPa at 0–60°C, as indicated in the manufacturer's diagram. The tubing has a minimum bending radius of 33 mm and a bending radius relevant for flow rate of 62 mm, providing flexibility without compromising flow efficiency. Its Shore hardness of D 52 ±3 ensures a robust yet pliable structure.
Installation and Integration
One of the standout features of this tubing is its “one-click” installation principle, which simplifies assembly and reduces setup time. The tubing is designed for plug connections with an outside diameter of 12 mm, allowing quick and secure connections in pneumatic systems. This ease of installation is particularly beneficial in automation environments where downtime must be minimized. The tubing is also suitable for use in energy chains, making it ideal for moving applications that require continuous flexing. Its compatibility with compressed air, vacuum, and water expands its utility across various industrial processes.
Compliance and Suitability
The Festo PUN-H-12X2-RT-25 meets several important industry standards. It is TÜV certified (certificate B 013277 0506 00), ensuring compliance with safety and quality requirements. The material is RoHS-compliant and conforms to VDMA24364-B2-L for LABS (PWIS) conformity, which is critical for paint and coating applications. For the food industry, the tubing is approved for use, provided supplementary material information is followed. Additionally, it is suitable for Li-ion battery production, with restrictions on metals containing more than 1% copper, zinc, or nickel, except for specific exceptions like nickel in steel or plated surfaces. The tubing has a UL94 HB fire rating, and its cleanroom classification is noted as not meaningfully evaluable for static installation per ISO 14644-1.
Practical Benefits
Engineers and procurement teams will appreciate the versatility and reliability of this tubing. Its hydrolysis resistance ensures long service life in moist environments, while the food-grade compatibility makes it a safe choice for hygienic applications. The lightweight design (0.0729 kg/m) reduces overall system weight, and the red color aids in quick identification during maintenance. Whether used in pneumatic controls, vacuum systems, or water-based circuits, the PUN-H-12X2-RT-25 delivers consistent performance and simplifies installation, making it a valuable component in modern automation.