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Copper pipe The main products are: LWC, Pancake Coils, ACR Straight Tubes, Capillary Tubes, Copper Water Tubes, Copper Fittings, insulated Copper Tubes and Plastic-coated Copper Tubes. Being of the top-class quality the products, we have passed ISO9001, ISO14001, UPC, SGS and TUV etc.; these promise that the products we produced are always of the best quality 1) Alloy no.: C12200, Temper: soft drawn 2) Coil Wt.: 100kg 500 kg Specifications Unit weight O.D I.D Bottom Wall Thickness TW Fin Groove Depth HF Total Wall Thickness Apex Angle Helix Angle Number of Tooth Φ5.00×0.20+0.15-18° 33 5.00 4.30 0.2 0.15 0.35 40 18 40 Φ7.00×0.25+0.10-15° 52 7.00 6.30 0.25 0.10 0.35 40 15 65 Φ7.00×0.25+0.18-18° 57 7.00 6.14 0.25 0.18 0.43 40 18 50 Φ7.00×0.25+0.22-16° 58 7.00 6.06 0.25 0.22 0.47 22 16 54 Φ7.00×0.27+0.15-18° 60 7.00 6.16 0.27 0.15 0.42 53 18 60 Φ7.94×0.25+0.18-18° 65 7.94 7.08 0.25 0.18 0.43 40 18 50 Φ7.94×0.25+0.20-18° 66 7.94 7.04 0.25 0.20 0.45 40 18 50 Φ7.94×0.26+0.17-18° 66 7.94 7.08 0.26 0.17 0.43 40 18 50 Φ7.94×0.28+0.20-18° 72 7.94 6.98 0.28 0.20 0.48 40 18 50 Φ7.94×0.30+0.20-18° 76 7.94 6.94 0.3 0.20 0.50 40 18 50 Φ9.52×0.27+0.16-18° 82 9.52 8.66 0.27 0.16 0.43 30 18 70 Φ9.52×0.28+0.12-15° 80 9.52 8.72 0.28 0.12 0.40 53 15 65 Φ9.52×0.28+0.15-18° 83 9.52 8.66 0.28 0.15 0.43 53 18 60 Φ9.52×0.28+0.15-25° 88 9.52 8.66 0.28 0.15 0.43 90 25 65 Φ9.52×0.28+0.20-18° 85 9.52 8.56 0.28 0.20 0.48 25 18 55 Φ9.52×0.28+0.20-18° 88 9.52 8.56 0.28 0.20 0.48 40 18 60 Φ9.52×0.30+0.20-18° 90 9.52 8.52 0.3 0.20 0.50 30 18 60 Φ9.52×0.30+0.20-18° 94 9.52 8.52 0.3 0.20 0.50 53 18 60 Φ9.52×0.34+0.15-25° 104 9.52 8.54 0.34 0.15 0.49 90 25 65 Φ9.52×0.40+0.25-18° 123 9.52 8.22 0.4 0.25 0.65 40 18 60 Φ12.00×0.36+0.25-18° 140 12.00 10.78 0.36 0.25 0.61 40 18 70 Φ12.70×0.35+0.25-18° 155 12.70 11.50 0.35 0.25 0.60 53 18 70 Φ12.70×0.40+0.25-18° 170 12.70 11.40 0.4 0.25 0.65 53 18 70 Φ12.70×0.50+0.25-18° 201 12.70 11.20 0.5 0.25 0.75 53 18 75 Φ12.75×0.36+0.21/0.25-20° 150 12.75 11.53 0.36 0.25 0.61 48 20 70 Remark: These are common sizes which the company is making, and unusual sizes with special requirement can be tailor-made against order. The inside surface area increases 70 100% than that of the same specification of plain copper tube, the heat transfer coefficient is about 1.8 2.0 times of that of same specification of plain tube.