Overview
Tension wound finned tubes are formed by winding a strip made of aluminium or copper around the tube under tension. The strip winding technology provides different types of fins: L-Fin, LL-Fin, KL-Fin. Embedded fins (G-Fins) are made by winding aluminium or copper strip into a helical groove machined on the outer surface of the tube.
ASME SA179 Wrapped Tension L Type Finned Tube, which absorb waste heat from flue gas to heat combustion air to reduce fuel consumption and improve combustion conditions, thereby achieving the purpose of energy saving; it can also absorb waste heat from flue gas to heat other gaseous media such as coal gas.
ASME SA179 Wrapped Tension L Type Finned Tube, as a heat transfer element, absorb the waste heat of the flue gas at a higher temperature to generate steam. The generated steam can be fed into the steam pipe network (the pressure of the pipe network needs to be reached), and can also be used for power generation (the steam volume is large and the heat source is large). stability) or other purposes. It is the most popular form of waste heat utilization for steel mills, petrochemical plants and industrial kilns.
Specification
ASTM A179/A179M-19 Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes.
Fin Material - G-fin; L-fin; LL-fin; KL-fin Finned Tubes | ||||
|---|---|---|---|---|
Fins | EN573-3 Aluminium Alloy 1050 or 1060 | SB152 - B152 Copper | ||
Notes | For different materials please contact us | |||
Tube Material - G-fin; L-fin; LL-fin; KL-fin; Extruded-fin Finned Tubes | ||||
|---|---|---|---|---|
Tube | SA179 - A179 | SA213 - A213 | SB75 - B75 | SB111 - B111 |
Notes | For different materials please contact us | |||
Inspections and Tests |
|---|
Chemical Composition |
Mechanical Properties |
Hydrostatic Test |
Pneumatic Test |
Boroscopic Inspection |
Eddy Current Test |
Tensile Test (only for bimetallic tube) |
Standard Dimensions
Outside | Outside Thickness | Inside | Length | Ferrule Length | |||||
MM | INCH | MM | BWG | MM | BWG | M | FT | MM | INCH |
6.00÷114.30 | ½"÷4.5" | 0.711÷7.21 | 22÷2 | 0.51÷3.05 | 25÷11 | 0.3÷20 | 1÷66 | 0÷500 | 0÷20 |
Materials
Outer Tube | Inner Tube | Ferrules |
SA 179 / A 179 – Carbon Steel | SA 179 / A 179 – Carbon Steel | SA 179 / A 179 – Carbon Steel |
Applications
1. ASME SA179 Finned Tube for Heat Exchangers of power plant (electric, nuclear, thermal and geothermal power plants).
2. ASME SA179 Finned Tube for high corrosive systems (condensers, evaporators, sea water desalinations, fertilizing, urea systems, ammonia, gas, corrosive acids).
3. ASME SA179 Finned Tube for petroleum, chemical and petrochemical industries.
4. ASME SA179 Finned Tube for food processing and refrigeration industries.
5. ASME SA179 Finned Tube for natural gas treatment.
