Pneumatic tubing (PU)

Carrying compressed air between pneumatic control circuit components using flexible polyurethane tubing.

Product Overview

Polyurethane (PU) pneumatic tubing carries compressed air between the components of a control circuit. It offers high flexibility, light weight and good abrasion resistance, and is supplied in the common metric and imperial sizes and in a range of colours for circuit identification.

End-User Industries

Industrial automationPetrochemicalSteelProduction lines
PU pneumatic tubing

Technical Specification

MaterialEster-based polyurethane (PU)
Common outside diameters4, 6, 8, 10, 12, 14 and 16 mm (other sizes on request)
Working pressure rangeDepending on size, approximately 8 to 15 bar at ambient temperature (smaller sizes carry a higher rating)
Working temperature rangeApproximately −20 °C to +80 °C
FeaturesHigh flexibility, light weight, good resistance to abrasion and repeated bending
ColoursA range of colours for circuit identification (line colour coding)

Common size table (outside diameter × inside diameter)

Outside diameter (OD)Inside diameter (ID)
4 mm2.5 mm
6 mm4 mm
8 mm5 mm
10 mm6.5 mm
12 mm8 mm
14 mm10 mm
16 mm12 mm
Source: The values above follow the common industry sizes and specifications for polyurethane (PU) pneumatic tubing. The permissible working pressure falls appreciably as temperature rises (for example from 20 °C to 50 °C); exact figures depend on the manufacturer and the project's operating conditions.

Technical Catalogue

The technical catalogue for pneumatic tubing is available on request from our sales department.

Request the technical catalogue

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