Factory Wholesale Price All Size Pre Insulated Air Conditioner Connecting Piping Copper Pipe/Tube With Insulation For Split Air

Factory Wholesale Price All Size Pre Insulated Air Conditioner Connecting Piping Copper Pipe/Tube With Insulation For Split Air    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(Φ6.3hole is larger than 3.0mm); (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.   Related Products        

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