Air Conditioner Copper Aluminum Connecting Tube

"hot sale air conditioner copper aluminum connecting pipe"One end or both ends of the pipe are connected to a copper pipe, forming the ctructure of the copper-aluminum(-copper) joint,which are used for the tranmission of refrigerant in the refrigaration system.
The thinner copper pipe is inserted into the thiker aluminum pipe, by resistance welding with any weld flux produce a copper - aluminum joint pope.
In order to prevent corrosion of aluminium pipe, heat shrinkable tube is lined outside the aluminum pipe.
There are 3 kinds of insulation tube: 1) with white embossed pattern
2) rubber foam
3)PEThe length of welding fusion of copper - aluminum can be checkesby peeling test.
MAIN PERFORMANCE INDEX OF COPPER ALUMINIUM AIR ConDITIONER ConNECTING PIPEPerformance indexparameterspressure test4.9Mablasting test≥13MaThe lenth of welding fusion of copper-aluminum≥5mmleakage rate of welding joint≤10ppmtensile strength of welding joint≥60Maelongation at break of welding joint22%PE
(anti-corrosion PE pipe)comparison of tensile strength before and after aging testbefore aging test13Maafter aging test
(158ºC/168h)12.6Macomparison of elongation at break of welding joint before and after aging test)before aging test450%
after aging test
(158ºC/168h)426%Neutral Salt spray test(operation life ≥15years5%NaCl/35ºC500h
SPECIFICATION OF COPPER ALUMINIUM AIR ConDITIONER ConNECTION TUBE
specification
CU(OD/thickness)
(mm)
AL(OD/thickness)
(mm)
Length of products
(m)1/4"6.35/0.76.35/0.83m, 5m, 8m,
as per customer's requirement3/8"9.52/0.79.52/0.81/2"12.7/0.712.7/1.05/8"15.88/0.815.88/1.23/4"19.05/0.819.05/1.2COST SAVING ANALYSIS OF COPPER ALUMINIUM AIR ConDITIONER ConNECTION TUBEspecification
CU(OD/thickness)
(mm)
AL(OD/thickness)
(mm)Cost camparison between copper aluminum A/c connection pipe with full copper A/C connection pipe
(without insulation tube)(5m)1/4"6.35/0.76.35/0.8
The average cost savings is about 60%3/8"9.52/0.79.52/0.81/2"12.7/0.712.7/1.05/8"15.88/0.815.88/1.23/4"19.05/0.819.05/1.2