Air Conditioner Tube Insulated Copper Aluminium connecting Pipe Air Conditioning Pipes

air conditioner connecting pipe

Technical standard of copper 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.

Our website:https://nbhengxing.en.alibaba.com/

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1. Q: What is your payment terms?
A: TT, LC etc.

2. Q: What is your delivery terms?
 A: FOB, EXW, CIF etc.

3. Q: How to control your quality?
A: We are ISO 9001-2008 certified firm. We have the integrated system of production quality control. We have IQC(Incoming quality control), IPQC( In process quality control), FQC(Final quality control), and OQC(Out-going quality control) to control each process of production.

4. Q: What is your main market?
A: Europe, Austria, East Asia and America etc.

5. Q: Do you provide the samples? How long will it take?
A: Yes, we do. The regular item in stock will be shipped in 3-5 days. And the customized one will be 15-25 days.

6. Q: Can you produce the small order?
A: Yes, we can. If you order is smaller than our MOQ, we will arrange special production for you, but the price will be a little higher.

7. Q: How to get the samples?
A: Please send your address, telephone number and the products you need to us