Description
Polyurethane Tube, 4 mm OD x 2 mm ID — BOLTON SKU 70161.
About the Polyurethane Tube, 4 mm OD
This Polyurethane Tube 4 mm OD size is a small-bore flexible tube with a 4 mm outside diameter, a 2 mm inside diameter and therefore a 1 mm wall. Polyurethane (PU) tubing combines the flexibility and kink resistance of rubber hose with the dimensional consistency of a semi-rigid plastic tube: its calibrated outside diameter is what allows it to seal reliably in metric push-in pneumatic fittings sized for 4 mm tube. PU also offers good abrasion resistance and tolerates repeated flexing, which suits routing on moving machine elements. The 2 mm bore keeps internal volume low, favouring fast signal response in pilot and instrument lines. Working pressure, temperature rating, hardness grade and colour are not stated for this listing and should be confirmed at RFQ stage.
Key specifications
| Material | Polyurethane (PU) |
|---|---|
| Outside diameter | 4 mm |
| Inside diameter | 2 mm |
| Wall thickness | 1 mm |
| Fitting compatibility | Metric push-in fittings for 4 mm OD tube |
Typical applications
4 mm PU tube is a standard choice for pneumatic pilot lines, small actuator feeds and vacuum pick-up lines on automation equipment. Its small bend radius allows tidy routing through cable chains and crowded valve manifolds where larger tube cannot turn.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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