Seamless Copper Tubes for Air Conditioning and Refrigeration Field Service
DENJI® Copper Tube also manufactures another range of copper tube to comply with Australian Standards, AS/NZS 1571 Seamless Copper Tubes for Air Conditioning and Refrigeration
Standard sizes and data for Annealed Coil Copper Tubes (15 metres /coil)
Standard sizes and data for Hard Drawn Straight Copper Tubes (5.8 metres /length
Expansion
Copper tube, like all piping materials, expands and contracts with temperature changes. Therefore, in a copper tube system subjected to excessive temperature changes, a long line tends to buckle or bend when it expands unless compensation is built into the system. The expansion of a length of copper tube may be calculated from the formula:
Calculation for expansion and contraction should be based on the average coefficient of expansion of copper which is 0.0000094 inch per inch per degree F, between 70°F and 212°F
