Product Overview
The Festo PUN-H 3/8 TSW 150 CB (part number 8203976) is a high-performance pneumatic tubing engineered for demanding industrial environments. Its translucent black appearance and TPE-U (PU) construction deliver a balance of flexibility and durability. This tubing is specifically designed for use with push-in connectors, ensuring a secure and leak-resistant fit. The material is copper-free and zinc-free, making it an excellent choice for applications where metal contamination must be avoided, such as in battery production.
Material and Compliance
The tubing is made from TPE-U (PU), a thermoplastic polyurethane known for its excellent mechanical properties and chemical resistance. It is RoHS-compliant and has a Shore hardness of D 52 +/-3, providing a robust yet flexible conduit for compressed air and water. The material is also suitable for use in energy chains, as it can withstand repeated bending without failure. The tubing meets the fire test standard UL94 HB and conforms to VDMA24364-B2-L for LABS (PWIS) conformity, ensuring it is free from substances that could affect paint adhesion.
For Li-ion battery production, the tubing adheres to strict metal restrictions: metals with more than 1% by mass of copper, zinc, or nickel are excluded, with exceptions for nickel in steel, chemically nickel-plated surfaces, circuit boards, cables, electrical plug connectors, and coils. This makes the PUN-H 3/8 TSW 150 CB a safe and reliable choice for such sensitive applications.
Technical Specifications and Performance
The tubing has an external diameter of 3/8 inches and is designed for plug connections with the same outside diameter. It offers a minimum bending radius of 24.994 mm, while the bending radius relevant for flow rate is 52.121 mm. This allows for tight installations without compromising flow efficiency. The operating pressure is temperature-dependent, ranging from -0.993 bar to 9.997 bar. For water applications, the maximum operating pressure is 0.3 MPa at temperatures between 0 and 60 °C. The ambient temperature range is -35 °C to 63 °C, making it suitable for a wide variety of environments.
The tubing weighs 0.48 kg per meter, providing a lightweight solution that reduces overall system weight. Its smooth inner surface ensures consistent flow and minimizes pressure drops, contributing to reliable and efficient operation.
Applications and Integration
Thanks to its copper-free and zinc-free composition, the PUN-H 3/8 TSW 150 CB is particularly well-suited for battery production lines, where even trace amounts of these metals can cause defects. It is also versatile enough for general pneumatic systems, food industry applications (with reference to supplementary material information), and cleanroom environments. In cleanrooms, the tubing is considered a statically installed element, and no meaningful evaluation is possible according to ISO 14644-1.
The tubing’s compatibility with push-in connectors simplifies installation, reducing setup time and labor costs. Its durability and resistance to chemicals ensure long service life, even in harsh conditions. For engineers and procurement teams, this tubing offers a dependable solution that meets stringent industry standards while providing flexibility in design and application.
Selection Considerations
When selecting pneumatic tubing, it is essential to consider the operating medium, pressure, temperature, and environmental factors. The PUN-H 3/8 TSW 150 CB is rated for compressed air as per ISO 8573-1:2010 [7:-:-] and water (liquid, ice-free). Its temperature-dependent operating pressure must be carefully matched to the system’s requirements. The tubing’s material properties and compliance with standards such as RoHS and VDMA24364-B2-L make it a reliable choice for industries with strict quality and safety requirements.
For applications involving energy chains, the tubing’s suitability ensures long-term performance without fatigue. Its translucent black color allows for easy visual inspection of flow, aiding in maintenance and troubleshooting. Overall, the Festo PUN-H 3/8 TSW 150 CB combines material innovation with practical design, making it a valuable component in modern industrial automation.