| ventilation mode: | natural ventilation |
|---|---|
| Certification: | UL, ISO9001, CE |
| Transport Package: | Paper Box |
| Specification: | O. D1/4" to 7/8" |
| Trademark: | Sunfoam |
| Origin: | Anhui |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier | Outer diameter | 6.35 mm; 9.52 mm;12.7 mm;15.88 mm;19.05 mm |
| Length | 3-10mm |
| 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 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 joints, the seal can not turn.
Suppliers with verified business licenses
Audited Supplier 
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