Product Description
Festo PUN-H 4mm x 50m polyurethane tubing supplies compressed air, vacuum and water lines across an installation, running as a single 50m silver length rather than multiple joins.
Where it fits on a job
This tube suits pneumatic feeds for gate actuators, barrier systems, access control cylinders and any site where a push-in fitting run needs to cover distance without splicing. The 50m length reduces the number of joints on longer external runs between a compressor and end devices.
Key specs
- Outside diameter: 4mm, inside diameter: 2.6mm
- Maximum operating pressure: 10 bar; rated down to -0.95 bar for vacuum use
- Operating temperature: -35°C to +60°C
- Material: polyurethane, hydrolysis resistant, FDA compliant
- Standard: compressed air quality in accordance with ISO 8573-1:2010
- Construction: free of copper and PTFE, RoHS compliant
Why PUN-H over standard tubing
The hydrolysis-resistant formulation means this tube can also carry water, not just compressed air or vacuum, which matters if a deployment combines pneumatic and fluid lines on the same containment run. It's rated for clean room and food industry use where standard tubing may not be specified.
Fitting
Installs with push-in pneumatic fittings using a one-click connection — no tools or threading required for the initial fit, which speeds up first-fix on multi-point installations.
Specifications
- Product Type
- FESTO-Compressed-Air-Pipe-Silver-PUN-H-Series-558278
Technical Specifications
Frequently Asked Questions
What pressure range does this tubing handle?
It's rated for a maximum operating pressure of 10 bar, down to -0.95 bar for vacuum applications.
Can this tube carry water as well as compressed air?
Yes, the PUN-H formulation is hydrolysis resistant, so Festo rates it for water applications alongside compressed air and vacuum.
What fittings does it use?
It's designed for push-in pneumatic fittings with a one-click connection, so no threading is needed for the initial fit.
What's the operating temperature range?
-35°C to +60°C, per Festo's specification for this PUN-H tubing.
