Page 125 - PRESS-FIT SYSTEMS FOR DIVERSE APPLICATIONS

3.0 TECHNICAL DATA
SYSTEM DESIGN CONSIDERATIONS

AND TUBE EXPANSION

The following are some of the specific design considerations which must be avoided. So it’s important to take the effect of
which are important to take account of when designing and thermal movement into account when designing or installing a
installing pipework systems containing XPress fittings. system.
THERMAL MOVEMENT It’s especially important to avoid stress concentrations between
Thermal movement is a major consideration when designing fixed points typically found at radiators, valves and other fittings.
plumbing and heating systems. Pipework systems expand and The following tables show thermal expansion details for a range of
contract with changes in temperature. If they are fixed too rigidly tube/pipe lengths and temperature changes.
and their movement restricted, the systems will be subject to stress
XPRESS COPPER, XPRESS COPPER GAS AND XPRESS SOLAR: COPPER TUBE EXPANSION
Temperature Tube Length
change 3m 4m 5m 6m 7m 8m 9m 10m 12m 25m
10ºC 0.5mm 0.7mm 0.9mm 1.0mm 1.2mm 1.4mm 1.5mm 1.7mm 2.0mm 4.3mm
20ºC 1.0mm 1.4mm 1.7mm 2.0mm 2.4mm 2.7mm 3.0mm 3.4mm 4.0mm 8.5mm
30ºC 1.5mm 2.0mm 2.6mm 3.1mm 3.6mm 4.1mm 4.6mm 5.1mm 6.1mm 13.0mm
40ºC 2.0mm 2.7mm 3.4mm 4.1mm 4.8mm 5.4mm 6.1mm 6.8mm 8.2mm 17.0mm
50ºC 2.6mm 3.4mm 4.3mm 5.1mm 6.0mm 6.8mm 7.7mm 8.5mm 10.2mm 21.0mm
60ºC 3.1mm 4.1mm 5.1mm 6.1mm 7.1mm 8.2mm 9.2mm 10.2mm 12.2mm 26.0mm
70ºC 3.6mm 4.8mm 6.0mm 7.1mm 8.3mm 9.5mm 10.7mm 11.9mm 14.3mm 30.0mm
80ºC 4.1mm 5.4mm 6.8mm 8.2mm 9.5mm 10.9mm 12.2mm 13.6mm 16.3mm 34.0mm
90ºC 4.6mm 6.1mm 7.7mm 9.2mm 10.7mm 12.2mm 13.8mm 15.3mm 18.4mm 38.0mm
100ºC 5.1mm 6.8mm 8.5mm 10.2mm 11.9mm 13.6mm 15.3mm 17.0mm 20.4mm 43.0mm
150ºC 7.7mm 10.2mm 12.8mm 15.3mm 17.9mm 20.4mm 23.0mm 25.5mm 30.6mm 63.8mm
200ºC 10.2mm 13.6mm 17.0mm 20.4mm 23.8mm 27.2mm 30.6mm 34.0mm 40.8mm 85.0mm

XPRESS STAINLESS AND XPRESS STAINLESS GAS: STAINLESS STEEL SYSTEM TUBE EXPANSION
Temperature Tube Length
change 3m 4m 5m 6m 7m 8m 9m 10m 12m 25m
10ºC 0.5mm 0.6mm 0.8mm 1.0mm 1.1mm 1.3mm 1.4mm 1.6mm 1.9mm 4.0mm
20ºC 1.0mm 1.3mm 1.6mm 1.9mm 2.2mm 2.6mm 2.9mm 3.2mm 3.8mm 8.0mm
30ºC 1.4mm 1.9mm 2.4mm 2.9mm 3.4mm 3.8mm 4.3mm 4.8mm 5.8mm 12.0mm
40ºC 1.9mm 2.6mm 3.2mm 3.8mm 4.5mm 5.1mm 5.8mm 6.4mm 7.7mm 16.0mm
50ºC 2.4mm 3.2mm 4.0mm 4.8mm 5.6mm 6.4mm 7.2mm 8.0mm 9.6mm 20.0mm
60ºC 2.9mm 3.8mm 4.8mm 5.8mm 6.7mm 7.7mm 8.6mm 9.6mm 11.5mm 24.0mm
70ºC 3.4mm 4.5mm 5.6mm 6.7mm 7.8mm 9.0mm 10.1mm 11.2mm 13.4mm 28.0mm
80ºC 3.8mm 5.1mm 6.4mm 7.7mm 9.0mm 10.2mm 11.5mm 12.8mm 15.4mm 32.0mm
90ºC 4.3mm 5.8mm 7.2mm 8.6mm 10.1mm 11.5mm 13.0mm 14.4mm 17.3mm 36.0mm
100ºC 4.8mm 6.4mm 8.0mm 9.6mm 11.2mm 12.8mm 14.4mm 16.0mm 19.2mm 40.0mm
XPRESS CARBON**: GALVANISED CARBON STEEL SYSTEM TUBE AND PLASTIC COATED CARBON STEEL SYSTEM TUBE EXPANSION
Temperature Tube Length
change 3m 4m 5m 6m 7m 8m 9m 10m 12m 25m
10ºC 0.3mm 0.4mm 0.5mm 0.7mm 0.8mm 0.9mm 1.0mm 1.1mm 1.3mm 2.7mm
20ºC 0.7mm 0.9mm 1.1mm 1.3mm 1.5mm 1.7mm 1.9mm 2.2mm 2.6mm 5.4mm
30ºC 1.0mm 1.3mm 1.6mm 1.9mm 2.3mm 2.6mm 2.9mm 3.2mm 3.9mm 8.1mm
40ºC 1.3mm 1.7mm 2.2mm 2.6mm 3.0mm 3.5mm 3.9mm 4.3mm 5.2mm 10.8mm
50ºC 1.6mm 2.2mm 2.7mm 3.2mm 3.8mm 4.3mm 4.9mm 5.4mm 6.5mm 13.5mm
60ºC 1.9mm 2.6mm 3.2mm 3.9mm 4.5mm 5.2mm 5.8mm 6.5mm 7.8mm 16.2mm
70ºC 2.3mm 3.0mm 3.8mm 4.5mm 5.3mm 6.1mm 6.8mm 7.6mm 9.1mm 18.9mm
80ºC 2.6mm 3.5mm 4.3mm 5.2mm 6.1mm 6.9mm 7.8mm 8.6mm 10.4mm 21.6mm
90ºC 2.9mm 3.9mm 4.9mm 5.8mm 6.8mm 7.8mm 8.8mm 9.7mm 11.7mm 24.3mm
100ºC 3.2mm 4.3mm 5.4mm 6.5mm 7.6mm 8.6mm 9.7mm 10.8mm 13.0mm 27.0mm

** Closed circuit systems only.

125