Dellok Yonghui Radiating Pipe Manufacturing Co.,Ltd.
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DELLOK Petrochemical Industry KL Type Spiral Finned Tube
About Us
DELLOK (YONGHUI RADIATING PIPE MANUFACTURING CO.,LTD.) was established in 2002, which is located in Jiangsu, China. After many years of development, the company now has 66 million yuan in fixed assets, more than 200 employees, and 33 technical staffs. We have 4 aluminum processing production lines, with the annual processing capacity of more than 20,000 tons; And we have 5 tube-drawing production lines; 47 fintube production lines, 1 imported production line from American with the brand of McElroy , with the annual production capacity of 12 million meters the above. Quality is the theme of eternal pursuit of winner -Production workshop- Meticulous works, standardized management system and systematic quality assurance are Dellok(YONGHUI)'s best commitment to quality. In Dellok(YONGHUI), the quality control is not only the detection of the final process, but throughout the entire production process. We implement a set of quality control and assurance systems. Each batch of pipes is sampled and tested, and records are kept as a quality guarantee for the final product.
Description
KL Fin Tubes also called knurled finned tubes. This finned tube is basically identical to the Wrap-On fin and produced with a combination of Wrap-On and Embedded. The fins are manufactured from strip which is preformed into an accurately controlled L shape similar to the L type, rolled into a taper which causes it to curl. It is then continuously helically wound under tension onto the tube. The fin wrapped around the tube. The base tube is knurled by a rotating tool, then the foot of the fin is knurled into the knurling of the base tube providing a tight bond with increased thermal performance. Providing the correct fin strip is used the foot of one fin butts up against the next fin and there is no gap between the fins. This gives some corrosion protection to the tube. The fins are secured at each end to prevent unwinding in a similar way as L fins.
The fin is wrapped around the tube and the foot is rolled into the outer surface of the pre knurled tube and secured at each end. Gives good surface protection to the tube and improved heat transfer compared to the L or LL type fin. KL -Foot tension wound finned tubes are commonly used in applications with metal Maximum Operating Temperature- up to 320°C (608°F)
Stainless Steel Finned Tube Coil
Kl Embossed Spiral Fin Tube
Studded Tube Nailhead Tube
Application
Mainly used for air coolers in petrochemical, electric power, papermaking, tobacco, building heating and other industries, and air heaters and air heaters in spray drying systems such as vegetable protein and starch in the food industry. Blast furnace and converter systems, power generation: condensed waste gas from steam turbines, condensed water contact circulation cooling condensation, fossil and nuclear power plants, air conditioners (Freon, ammonia, propane), waste incineration equipment, compressor coolers, etc.
The thermal resistance of the Winding Finned Tube is relatively low: after practice, it is concluded that the thermal resistance of the bimetallic winding finned tube is basically zero even if it is used in an environment of 210 °C, because the relatively Low thermal resistance touch force, so it has a very good effect on heat transfer.
Product Categories : L/LL/KL Finned Tube
Fin Type: L/LL/KL Finned Tube
Tube Material: Carbon steel, stainless steel, copper, aluminum
Fin Material: Copper, aluminum
Fin Tube Length: No Limit
Working temperature: 230℃.
Features: Adopting the winding process, the production efficiency is high, the lamella distance is uniform, the heat transfer is good, the finization ratio is high, the base tube can be protected from air erosion.
Finned tube is a tube with small finned fins around its outer surface. These fins act as a filter and a mechanism for transferring heat from the material inside the tube to or from the outer space. Finned tubes are used in applications where heat is transferred from a hot fluid to a cooler fluid through the wall of the tube. The rate at which this heat transfer occurs depends on three factors:
The difference in temperature between the two fluids.
The coefficient of heat transfer between each fluid and the wall.
Surface area of fluid exposure.
L type finned tube
Adopting the winding process, the production efficiency is high, uniform lamella distance , good heat transfer, high finization ratio, the base tube can be protected from air erosion. The aluminum fin or copper fin is folded into an L shape and continuously spirally wound on the outer surface of the base tube under the action of tension.
Maximum working temperature-150°C (302°F), acceptable for atmospheric corrosion resistance, poor mechanical resistance. Commonly used heat sink materials are aluminum and copper.
LL type finned tube
Under the L-shaped foundation, the fin root completely covers the outer surface of the base tube; to some extent, this fin type guarantees better corrosion resistance. Maximum working temperature-180°C (356°F), acceptable for atmospheric corrosion resistance, poor mechanical resistance. Commonly used heat sink materials are aluminum and copper.
KL type finned tube
Before the fins are continuously wound on the surface of the steel pipe, the outer surface of the base pipe needs to undergo a knurling process; after the fins are wound, the root of the fin attached to the steel pipe will also be knurled to strengthen the steel pipe and Combination of fins. For this reason, this fin type ensures better heat transfer characteristics under the fins of L and LL. Maximum working temperature-260°C (500°F), acceptable for atmospheric corrosion resistance, poor mechanical resistance. Commonly used heat sink materials are aluminum and copper.
Mainly used in air coolers in petrochemical, electric power, paper making, tobacco, building heating and other industries, air heaters and air heaters in spray drying systems such as vegetable protein and starch in the food industry. Blast furnace and converter systems, power generation: condensate exhaust gas discharged from steam turbines, condensate contact cycle cooling condensation, fossil and nuclear power plants, air conditioners (Freon, ammonia, propane), waste incineration equipment, compressor coolers, etc.
We customized finned tube according to customer indivisual requirement, for more details about L/LL/KL finned tube please inquire us!
FAQ
Q: What is your the lead time for production?
A: Generally Sample needs 1-3 days, mass production needs 15-30 days, also depends on your request.
Q: What is the warranty for your products?
A :We provide one year warranty for the products.
Q: What payment terms do you accept?
A :Trade assurance,TT,Western Union.
Q: What are the modes of transportation of machines?
A: Air freight, sea freight express delivery, etc. We will choose the most suitable transportation method according to your requirements.