The aluminum fin strip or the copper fin strip is folded into an L shape and spirally wound tightly under the action of tension on the outer surface of the base tube. Tension in the fin strip is wrapped around the tube serves to make the fin foot forcefully on the tube, thus hold the fin firmly in place.
L foot tension finned tubing is combined with two different materials
Core Tube: Carbon steel, stainless steel, copper
Fins: Aluminum, copper
Features of L Foot tension finned tubing: low cost, high production efficiency, uniform sheet distance, good heat transfer performance, good vibration resistance, high finning ratio, and the substrate tube can be protected from air erosion.
Application: Mainly used in protein powder, starch, soybean milk powder, maltodextrin, vegetables, food, pharmaceuticals, paper making, coal washing and transformers, dyeing and weaving, ceramics, leather, textiles, electric power, refrigeration, tobacco, plastics, grain and oil, petroleum , air coolers in the chemical industry and industrial and civil air heaters and radiators.
This is a circular fin wrapped helically around the tube under tension. Full coverage of the base tube by the L-foot offers good protection against atmospheric corrosion.
These fins tend to become loose over time, resulting in significant deterioration in the air side performance due to the gap between the tube and the fins. Consequently, their use is limited to applications where the process-fluid inlet temperature is less than 120℃. However, the majority of ACHE applications have process inlet temperatures less than this.
Since the air side performance of these finned tubes is likely to deteriorate due to the loosening of the fins. They are generally not very popular. One place where they are common is in the corrosive marine atmospheres of offshore platforms. Since they afford good protection against
Atmosoheric corrosion of the base tubes and are superior to grooved fins.
Dimensions
Base Tube: SA179 Tube, Copper Tube, Stainless Steel Tube, Alloy Tube
Fin Material: Al1100, Al1060, Copper Strip
Base Tube OD: 1’’to 2’’
Tube length: no limit
Fin OD: 2 1/4’’ to 3 1/4’’
Fin Pitch: 4FPI to 12FPI.
Cangyang Thermal Energy has 5 production lines for Embedded G Fin, also available for producing L Fin, LL Fin Tube and KL Fin Tube. Production capacity is 5000meters per day.
To avoid any mistanderstanding on your enquiry, we request you to provide the following datas.
Core Tube (Base Tube) Material and Quantity
Base Tube OD * tube wall thick * length
Fin Type and Fin Material
Fin Dimensions: Fin OD * Fin Thick * Fin Pitch * Unfinned Length at two sides
FAQ
Q: Are you trading company or manufacturer?
A: We are professional manufacturer specialized in heat exchanger and finned tubes products. And we export our welded tube, seamless tubes and fin tubes directly to International market.
LL Fin Tube and KL Fin Tube. Production capacity is 5000meters per day.
Q: Can you do OEM and ODM?
A: Yes, OEM and ODM are both acceptable. The base tube material, size, fin type, package details all can be customized or just follow our normal international standard.
Q: How many different types of products your company can manufacture?
A: We can manufacture different kinds of finned tubes, such as extruded fin tubes, L type Fin Tube, LL Foot Fin, KL Type Finned Tube, Embedded G Fin, High Frequency Fin Tubes. To servce customers better, we can also collect and sell seamless tube, welded tube, U tube bundle, just to make sure our customers purchase all materials with low cost.
Q: Can we use our own label on the tube ends?
A: Yes, we can print your private label or logo at tube ends just according to your request.
Q: How do you package the tubes and finned tubes?
A: We have different package types for your options.
For seamless plain tube, welded plain tube, we use woven bags or wooden cases.
For fin tubes, either for embedded G Fin or other fin types, we usually use steel frame with thick wooden case, to make sure the package is strong enough for transportation.
