Inner Grooved Copper Tube

  • Inner Grooved Copper Tube
  • APPLICATION OVERVIEW

    Applied to the Air Conditioner, the Assembly Type Air Conditioning Unit,   the Residential Central Air Conditioning, Show Case Refrigerator and so on.


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Product Description

Inner Grooved Copper Tube

Inner Grooved Copper Tube 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 1.82.0 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.

Inner Grooved copper tube is to improve the heat transfer characteristics of copper tubes and heat exchangers, the inner surface of the tube is provided with spirally running grooves. The heat transfer coefficient of these tubes is about 2~3 times higher than that of same specification of plain tube. Increased internal surface area, turbulent flow of refrigerant and uniform distribution of refrigerant around the periphery of tube cause increment of efficiency. By using the I.G tubes in fin block heat exchangers, the efficiency of the heat exchanger can be increased up to 30% depending on the application. In general advantages which can be gained from usage of I.G tubes are: smaller unit size with unchanged efficiency, saving in material cost, space savings, smaller fan and reduced noise level, smaller compressors and energy saving.

Inner Grooved Copper Tube Standard:

ASTM B280, ASTM B68 standard, EN 12735 standard, AS 1571 standard and JIS H3300 standard.

Temper:O60

Inner Grooved Copper Tube Package:

packed individually by reel, 6-7 coils packed by one pallet

Inner Grooved Copper Tube Product Code

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

Inner Grooved Copper Tube Technical Data

O.D. 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

Please be noted:
Apex Angle(Tolerance) α 30 ~ 90
Helix Angle Deg(Tolerance)β15 ~ 30
Number of Tooth(Number) 40 ~ 70

Inner grooved copper tube diagram

Inner Grooved Copper Tube Specification

Specification Outside
Diameter
(mm)
Bottom Wall Thickness
(mm)
Groove Depth Hf
(mm)
Number of Groove Inclination Angle
(Degree)
Fin Angle
(Degree)
7.00*0.25+0.18 7 0.25 0.18 50 18 40
7.00*0.27+0.15 7 0.27 0.15 50 18 40
9.52*0.27+0.16 9.52 0.27 0.16 70 18 40
9.52*0.28+0.12 9.52 0.28 0.12 65 15 53
9.52*0.28+0.15 9.52 0.28 0.15 60 18 40
9.52*0.28+0.20 9.52 0.28 0.20 60 18 40
9.52*0.28+0.20 9.52 0.28 0.20 60 18 53
9.52*0.30+0.20 9.52 0.30 0.20 60 18 53
9.52*0.34+0.15 9.52 0.34 0.15 60 18 53
9.52*0.34+0.20 9.52 0.34 0.20 60 18 53
9.52*0.45+0.20 9.52 0.45 0.20 60 18 48
12.7*0.35+0.25 12.7 0.35 0.25 65 18 53
12.7*0.35+0.25 12.7 0.35 0.25 65 18 65
12.7*0.41+0.20 12.7 0.41 0.20 70 18 65
12.7*0.41+0.25 12.7 0.41 0.25 60 18 65
12.7*0.45+0.20 12.7 0.45 0.20 50 18 53
15.87*0.4+0.28 15.87 0.40 0.28 75 18 53
15.87*0.4+0.28 15.87 0.40 0.28 60 18 53
15.87*0.58+0.3 15.87 0.58 0.30 75 18 48

Note:Other sizes can be made as per customer’s requirement according to mutual agreement.

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