Product Description:

Split Air Conditioner Insulated Copper Connecting Tube

1. Inside cleaned copper tubes for refrigerant gas and closed at the extremities.
2. Phosphorus deoxidized soft temper copper pipe DHP99.9 (C12200)
3. Dimensions and features according to AS TM B280, EN 12735-1, AS1571, JIS 3300
Insulation Properties:
1.Extruded and closed cell white polyethylene with a white outside PE-protection layer
2.Average Density: 33Kg/m3
3.Heating conduction at 0°C 0.033W/mK
4.Working temperature from -40°C until +120°C
5.Vapour resistance: μ>5000
6.White external non toxic and resistance to external chemical agents and ultra -violat rays
7.RoHS Certificate approved

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.

 
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