PU Tubes

Polyurethane (PU) tubes are highly flexible, durable, and abrasion-resistant hoses designed for pneumatic systems, robotics, and fluid transfer. They offer superior kink resistance, high elasticity, and chemical resistance, making them ideal for tight spaces and industrial automation. Compatible with push-in, barb, and compression fittings, they are available in various colors and sizes (e.g., 4mm-16mm). 

Key Features & Advantages

  • Superior Flexibility: Known for excellent memory and resistance to kinking.

  • Durability: High resistance to abrasion, tearing, and impacts.
  • Operating Range: Performs well in diverse temperature and pressure conditions.
  • Lightweight: Easy to install, reducing labor costs and system complexity.
  • Versatility: Compatible with push-on or brass/aluminum fittings. 

Common Applications

  • Pneumatic Systems: Air tools, robotics, and factory automation.

  • Fluid Transfer: Suitable for water, oils, and chemical transfer.
  • Industrial Use: Used in packaging machinery and 3D printer parts. 

Specifications & Sizing

  • Common Sizes: Available in metric sizes, including 4mm, 6mm, 8mm, 10mm,12mm, and 16mm 

  • Working Pressure: Typically handles up to, 8 to 12 bar depending on the size and wall thickness.
  • Colors: Common in Blue, Transparent, Black, Yellow, Red and Green for easy identification. 

Common Types

  • Standard PU Tube: General-purpose pneumatic tubing.
  • Soft PU Tube: Enhanced flexibility for specialized applications.
  • Coiled Hoses: For high-movement or extending applications.

Push Fittings and Connectors

Push-to-connect fittings provide fast, tool-free, and removable connections for air, water, and gas lines, commonly used in pneumatic, HVAC, and plumbing applications. They operate by inserting tubing into a body containing a gripping ring (collet) that seals and secures the tube, available in plastic or metal configurations. 

Features and Benefits

  • Installation: No tools required, just manual insertion, ideal for confined spaces.
  • Release Mechanism: Collar/collet is pushed in to release the tube.
  • Material Compatibility: Suitable for copper, PEX, and CPVC.
  • Industrial Use: Used in Robotics, Automotive, and Pneumatic Systems for High-Pressure requirements. 

Maintenance Practices

  • Inspection: Regularly inspect for leaks, especially in systems conveying hazardous gases or liquids.

  • Replacement: Establish a maintenance schedule (monthly/quarterly) for removing and replacing, depending on operating conditions.