Xuyi Titan & Material Co., Ltd.  

Product Name: Titanium Low Fin Tube for Condenser Model NO.: fin tube Material: Titanium, Stainless Steel, Nickel Style: Fin Principle: Regenerative Heat Exchanger Application: Heater, Vaporizer, Condenser Certification: ISO Fpi: 28, 30, 33, 36 Fin Height: 0.6-0.8 mm Bare Tube Od: 19.05mm, 25.4mm Trademark: xuyi titan Transport Package: Plywood Crate Specification: according to customer requirement Origin: China HS Code: 840490 Product Description Low Fin (Integral) tubing is a type of extruded tubing that consists of small low fins. The low fin tube is very similar to the extruded "high fin" types but these tubes have the same diameter as the base tube. Low Fin Enhanced tubes can be used in standard shell and tube baffles and tube sheets. The primary advantage for the low fin tube is providing surface enhancement and better heat transfer over smooth tubing.During the manufacturing process, fin material is tightly wound around the outside of the tube to secure metals-to-metal contact of the base of the fin with the tube.Integral Low Fin Tube has the advantage that it can improve the thermal performance of a Heat Exchanger without the necessity for changing shell size, flow arrangement or the repositioning of piping. The external surface of the tube is increased by the formation of "low fins" by direct extrusion from the material of the base tube.AdvantageFine-Fin® provides 2.5 to 3 times the external surface area of bare tubeThis yields numerous benefits for the heat transfer equipmentReduced capital cost for new equipmentEnhanced heat exchange efficiency means less Fine-Fin tubing is required to accomplish the same heat transfer as a bare tube.Reduced retrofitting cost for existing equipmentFine-Fin can increase the performance of an existing heat exchanger without the difficult and expensive task of building new shells, heads, nozzles, piping and foundations.Space, weight & structural savingsReduced plot space and weight can be extremely valuable in offshore production or high elevation distillation columns. Fine-Fin technology transforms large shell & tube exchangers into compact heat exchangers.More materials & alloys to selectFine-Fin is available in a wider range of alloys than traditional low-fin tubing which is restricted to soft metals. This opens a new world of opportunity for enhanced tubing in corrosive service. The more expensive the tube material, the more dramatic the cost savings of Fine-Fin.Reduced maintenance & life cycle costProper material selection with Fine-Fin can eliminate costly downtime & maintenance. Example: Coastal refineries using once-through seawater cooling systems can benefit by substituting conventional copper nickel tubing with Titanium Fine-Fin tubing. Titanium Fine-Fin is highly resistant to seawater corrosion erosion.ApplicationThe Integral low fin tubes are widely used inchemicalprocess. Especially applicable between air or other gases on the fin-side and a fluid on the tube-side.When to Consider Integral low fin tube.Shell side heat transfer is controlling.Expensive materials of construction are required.Debottlenecking an existing exchanger.Retrofitting or upgrading with new tube material.Meeting a stringent space or weight requirement.FIN TUBE MEETS THE FOLLOWING QUALITY STANDARDSASTM B891 Seamless and Welded Titanium and Titanium Alloy Condenser and Heat Exchanger Tubes With Integral FinsASTM A1012 Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes with Integral FinsASTM B924 Seamless and Welded Nickel Alloy Condenser and Heat Exchanger Tubes with Integral FinsASTM B359 Copper and Copper Alloy Seamless Condenser and Heat Exchanger Tubes with Integral Fins.General Dimensions - Low Fin Tube Smooth Bore28 FPI 0.889mm average fin height 0.305mm average fin thicknessNo.Plain Section avg. ODPlain section avg. wallWall Under fin avgWall Under Fin Min.Nominal Root ODFin SectionIDOutside Area AoInside AreaAiArea Ratio Ao/AiID cross Section Area15352815.881.4730.8890.78714.09712.3190.1260.0393.2521.19215422815.881.6511.0670.94014.09711.9630.1260.0373.3581.12419282819.051.2450.7110.63517.27215.85-0.1530.0503.0741.97319352819.051.4730.8890.78717.27215.4940.1530.0493.1310.29219422819.051.6511.0670.94017.27215.1380.1530.0483.2121.80025352825.401.4730.8890.78724.62221.8440.2060.0693.0043.74825352825.401.6511.0670.94024.62221.4880.2060.0673.0593.62730 FPI 0.813mm average fin height 0.279mm average fin thicknessNo.Plain Section avg. ODPlain section avg. wallWall Under Fin avg.Wall Under Fin Min.Nominal Root ODFin SectionIDOutside Area AoInside AreaAiArea Ratio Ao/AiID cross Section Area15353015.881.4730.8890.78714.24912.4710.1250.0393.1861.22215423015.881.6511.0670.94014.24912.1160.1250.0383.2881.15319283019.051.2450.7110.63517.42416.0020.1520.0503.0302.01119353019.051.4730.8890.78717.42415.6460.1520.0493.1061.92319423019.051.6511.0670.94017.42415.2910.1520.0483.1651.83625353025.401.4730.8890.78723.77421.9960.2050.0692.9563.80025353025.401.6511.0670.94023.77421.6410.2050.0683.0093.67836 FPI 0.66mm average fin height 0.305mm average fin thicknessNo.Plain Section avg. ODPlain section avg. wallWall Under Fin avg.Wall Under Fin Min.Nominal Root ODFin SectionIDOutside Area AoInside AreaAiArea Ratio Ao/AiID cross Section Area15353615.881.4730.8890.78714.55412.7760.1250.0403.1141.28215423615.881.6511.0670.94014.55412.4210.1250.0393.2111.21219283619.051.2450.7110.63517.72916.3070.1520.0512.9762.08819353619.051.4730.8890.78717.72915.9510.1520.0503.0491.99819423619.051.6511.0670.94017.72915.5960.1520.0493.1061.91025353625.401.4730.8890.78724.07922.3010.2050.0702.9173.90625353625.401.6511.0670.94024.07921.9460.2050.0692.9693.783General Dimensions - Low Fin Tube with Internal Rib28 FPI 0.89 average fin height 0.305mm average fin thickness 0.254 average rib heightNo.Plain Section avg. ODPlain section avg. wallWall Under Fin avg.Wall Under Fin Min.Nominal Root ODFin SectionIDOutside Area AoInside AreaAIArea Ratio Ao/AiID cross Section Area192828-20104619.051.2450.7110.63517.27215.8500.1530.0592.5691.961193528-20104619.051.4730.8890.78717.27215.4940.1530.0582.6231.87136 FPI 0.66 average fin height 0.305mm average fin thickness 0.254 average rib heightNo.Plain Section avg. ODPlain section wallWall Under Fin avg.Wall Under Fin Min.Nominal Root ODFin SectionIDOutside Area AoInside AreaAIArea Ratio Ao/AiID cross Section Area192536-20104619.051.245avg.0.6350.55917.72916.4590.1520.0622.4632.116192836-20104619.051.245 min0.7110.63517.72916.3070.1520.0612.4882.007d= outside diameter of plain enddi= inside diameter of plain enddr= root diameterdo=diameter over finsdi= inside diameter of fin sectionXp=wall thickness of plain endXf=wall thickness under finFh=height of finFm=fin thicknessP=rib pitchRh=height of ribHa=helix angle