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CHINA FACTORIES  >  COPPER > INNER GROOVED COIL >
铜管
Inner Grooved Coil
Application: The even and compact structure , the highly precise dimension , the normative and integrity groove shape , the low interior surface residuum etc., the inside surface area increases 65~100% 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, inner grooved copper tube is widely applied to the Air Conditioner, the Assembly Type Air Conditioning Unit, the Residential Central Air Conditioning, Show Case Refrigerator which is in conformance with the developing tendency of the Air Conditioner and Refrigerator to the high efficiency, the energy saving.
Standard: ASTM B280, ASTM B68 standard, EN 12735 standard, AS 1571 standard and JIS H3300 standard.
Temper:  O60
Package: Packed individually by reel, 6-7 coils packed by one pallet.

[ Product code and size ]

Product Code

Description

HTCD4

Inner Grooved Coil 4mmxLWC, soft annealed

HTCD476

Inner Grooved Coil 3/16"xLWC, soft annealed

HTCD5

Inner Grooved Coil 5mmxLWC, soft annealed

HTCD6

Inner Grooved Coil 6mmxLWC, soft annealed

HTCD635

Inner Grooved Coil 1/4"xLWC, soft annealed

HTCD7

Inner Grooved Coil 7mmxLWC, soft annealed

HTCD794

Inner Grooved Coil 5/16"xLWC, soft annealed

HTCD952

Inner Grooved Coil 3/8"xLWC, soft annealed

[Technical information ]

O.D.(Inch)

Bottom Wall Thickness Tw

Fin Groove Depth Hf

Inch

mm

Inch

mm

Inch

mm

0.1575

4

0.008~ 0.012

0.20 ~ 0.30

0.004~ 0.006

0.10 ~ 0.15

0.1875

4.76

0.008~ 0.014

0.20 ~ 0.35

0.004~ 0.006

0.10 ~ 0.15

0.197

5

0.008~ 0.014

0.20 ~ 0.35

0.004~ 0.006

0.10 ~ 0.15

0.2363

6

0.008~ 0.014

0.20 ~ 0.35

0.004~ 0.008

0.10 ~ 0.20

0.25

6.35

0.008~ 0.014

0.20 ~ 0.35

0.004~ 0.008

0.10 ~ 0.20

0.275

7

0.01~ 0.016

0.20 ~ 0.41

0.004~ 0.010

0.10 ~ 0.25

0.3125

7.94

0.01~ 0.016

0.20 ~ 0.41

0.004~ 0.010

0.10 ~ 0.25

0.375

9.52

0.01~ 0.016

0.20 ~ 0.46

0.004~ 0.012

0.10 ~ 0.30

■ Apex Angle(Tolerance) α 30 ~ 90

■ Helix Angle Deg(Tolerance)β15 ~ 30

■ Number of Tooth(Number) 40 ~ 70

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