High clean and ultra luminous surface in both inside and outside,the even and compact structure, less scrap, eddy-current test

1)various types of dental patterns, its heat transfer coefficient can be 2.5-4 times as that of a plain copper tube.

2)Plain Copper Tube is of high cleanliness and super brightness of inner and outer surface. It has a homogeneous and compact structure and features of high dimensional precision, high heat-exchange efficiency, easy welding, and great corrosion resistance

Applications:

Air conditioners, combination type air conditioning units, refrigeratiors, freezers, solar water heaters, water heaters, andiron fireplace grates, etc.

Standards applied: GB; ASTM; JIS

Range of Outer Diameters: 4.00mm-22.22mm

Range of Wall Thickness:0.25mm-2.00mm

Specifications:

OD mm	TW Bottom wall thickness mm	Hf addendum height mm	TWT total wall thickness mm	Addendum angle α/°	helix angle β/°	ridge number
3~16	0.20~0.75	0.10~0.30	0.30~1.05	10~100	0~50	30~100

Nominal dimension of tubes with ordinary ridge pattern

No.	Size	D OD	d ID	TW bottom wall thickness	Hf addendum height	TWT total wall thickness	Addendum angle α /°	helix angle β/°	ridge number n/
1	Φ5.00×0.20+0.14-40-18	5.00	4.32	0.20	0.14	0.34	40	18	38
2	Φ6.35(1/4'')×0.26+0.20-40-10	6.35	5.43	0.26	0.20	0.46	40	10	55
3	Φ7.00×0.27+0.15-53-18	7.00	6.16	0.27	0.15	0.42	53	18	60
4	Φ7.00×0.25+0.18-40-18	7.00	6.14	0.25	0.18	0.43	40	18	50
5	Φ7.00×0.25+0.22-22-16	7.00	6.06	0.25	0.22	0.47	22	16	54

No.	Size	D OD	d ID	TW bottom wall thickness	Hf addendum height	TWT total wall thickness	Addendum angle α /°	helix angle β/°	ridge number n/
6	Φ9.52(3/8'')×0.28+0.15-53-18	9.52	8.66	0.28	0.15	0.43	53	18	60
7	Φ9.52(3/8'')×0.30+0.20-53-18	9.52	8.52	0.30	0.20	0.50
8	Φ9.52(3/8'')×0.27+0.16-30-18	9.52	8.66	0.27	0.16	0.43	30	18	70
9	Φ12.70(1/2'')×0.41+0.25-53-18	12.70	11.38	0.41	0.25	0.66	53	18	60
10	Φ15.88(5/8'')×0.52+0.30-53-18	15.88	14.24	0.52	0.30	0.82	53	18	74

Note: The above datas are based on the normal size, and are for reference only. For special specs, we may make according to customers' special requirements

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