Anti-Fire Copper Aluminum Connecting Tube Pipe with Nuts for central air conditioner
Outer diameter | 6.35 mm; 9.52 mm;12.7 mm;15.88 mm;19.05 mm |
Cu(min) | 10% |
Wall thickness | 0.7-1.2 mm |
Insulation pipe thickness | 8mm |
Elongation(≥%) | 40% |
Tensile strength(≥MPa) | 170 |
Alloy or not | Alloy |
Material | XPE or RUBBER |
Application | Air condition or refrigerator |
Technical standard of copper aluminum connecting pipe:
(1)Welding point: no pores,cracks,slag,burrs and burn,not fusion,no obvious oxide film,no plug hole without significantly reduced;
(2)Air tightness: using a high pressure for 4.0MPa pressure for 5 minutes, no leakage;
(3)Pressure: after the air tightness check is qualified, slowly press the pressure to 13MPa,keep for 1 minute, without any cracks ;
(4)Bending: The sample is bent into a curved core diameter of 2 times than the nominal diameter of the pipe,after bending 180 degrees, the pipe does not produce wrinkles and cracks;
(5)Tensile strength: The tensile strength is at 65-118mpa, the pull part is on the side of the aluminum pipe, and the weld is above 10mm;
(6)KTG: Shrink good, sealed accessories have been melted, completely wrapped in copper aluminum joints, the seal can not turn.
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