Polyurethane hoses (PU, PUR, TPU) are the technological evolution of the corrugated plastic hose (PVC, EVA) patented in the 1960s.
Flexible polyurethane tubing is used where air and/or other products need to be transported through materials that have: excellent mechanical resistance, excellent tensile strength, …
Tubing in polyurethane can be made to specific lengths, with pressed fittings at the ends or, for systems that provide for it, with ends featuring specific pre-pressed sleeves…
These PUR hoses are usually semi-transparent, the helix is opaque, and transparency is provided by the polyurethane film between the coils…
These PUR hoses usually come transparent, the helix occupies a small portion of the polyurethane film…
Where there is no helix, PUR tubing is essentially a loose sleeve (an unstructured tube). It usually has a limited thickness…