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Level Wound Coils (LWC)
Level Wound Coils (LWC)
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Copper Fittings
Copper Fittings

Inner-grooved Tube

High-efficiency inner grooved tubes for chillers and heat exchangers, offering superior heat transfer over plain tubes.

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Description

Low finned tubes are high-performance heat transfer tubes designed for applications requiring enhanced external surface area. Their special fin design ensures superior heat transfer compared to plain tubes, making them ideal for demanding industrial and HVAC systems.

Applications:

  • Condensers and evaporators for air-conditioning and refrigeration (ACR)

  • Oil coolers and heat exchangers

  • Steam coils and vessels

  • Nuclear power plants and petrochemical industries

  • Diesel coolers and heat recovery systems

  • Double-tube type heat exchangers

Key Advantages:

  • High external surface area for improved heat transfer

  • Special saw-tooth fin design reduces condensed liquid build-up

  • Minimizes pressure loss in high-viscosity liquids

  • Enhances overall heat exchanger performance

  • Suitable for challenging industrial and high-viscosity fluid applications

Performance:

  • Delivers superior heat transfer efficiency

  • Optimized for advanced shell-and-tube heat exchanger designs

LWC FOR ACR SERIES (INNER GROOVED)
Specification Outside Diameter O.D Bottom Wall Thickness T.W Groove Depth Hf Fin Angle α Inclination Angle β Number of Grooves N
ϕ 9.52x0.34+0.20 9.52 0.34 0.20 53° 25° 62
ϕ 9.52x0.45+0.20 9.52 0.45 0.20 53° 25° 60
ϕ 12.70x0.43+0.20 12.70 0.43 0.20 53° 25° 70
ϕ 15.88x0.58+0.30 15.88 0.58 0.30 53° 25° 75
ϕ 15.88x0.62+0.30 15.88 0.62 0.30 53° 25° 77
Low Finned Tubes
Tube No. Plain Section (in) Plain Section (mm) S1 FPI d3 d4 S2 A2 Ao/Ai kg/m
MA LF1219125 1/2 12.7 1.25 19 11.1 12.7 0.8 0.12 3.6 0.46
MA LF1519130 5/8 15.87 1.3 19 10.9 12.7 0.9 0.12 3.7 0.49
MA LF1919120 3/4 19.05 1.2 19 14.4 15.8 0.7 0.15 3.3 0.53
MA LF1919135 3/4 19.05 1.35 19 14 15.8 0.9 0.15 3.5 0.60
MA LF1919145 3/4 19.05 1.45 19 13.8 15.8 1.0 0.15 3.6 0.65
MA LF1926125 3/4 19.05 1.25 26 11.1 12.7 0.8 0.16 4.6 0.48
MA LF1526130 5/8 15.87 1.3 26 10.9 12.7 0.9 0.16 4.7 0.51
MA LF1926125 3/4 19.05 1.25 26 14.2 15.8 0.8 0.20 4.5 0.60
MA LF1926135 3/4 19.05 1.35 26 14 15.8 0.9 0.20 4.5 0.64
MA LF1926145 3/4 19.05 1.45 26 13.8 15.8 1.0 0.20 4.6 0.68
MA LF1936120 3/4 19.05 1.2 36 15.4 17.0 0.8 0.17 3.6 0.51
MA LF1940120 3/4 19.05 1.2 40 15.4 17.0 0.8 0.20 4.1 0.51
Enhanced Finned Tubes
Tube No. Plain Section (in) Plain Section (mm) S1 FPI d3 d4 d5 S2 A2 Ao/Ai kg/m
MAET12130 1/2 12.7 1.3 19 9.1 10.7 12.6 0.7 0.1 3.59 0.36
MAET15135 5/8 15.87 1.35 19 12.3 13.9 15.8 0.7 0.13 3.38 0.47
MAET19135 3/4 19.05 1.35 19 15.4 17 18.9 0.7 0.16 3.26 0.6