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DELLOK Carbon Steel KL Finned Tube

1 meter
MOQ
$20 - 1000 /Piece/Pieces
Price
DELLOK  Carbon Steel KL Finned Tube
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Features
Specifications
Automatic Grade :: Automatic
Energy Saving:: Energy Saving
After-sales Service :: 7*24 Hours
Voltage:: Customized
Customized :: Customized
HS Code:: 8436990000
Basic Infomation
Place of Origin: china
Brand Name: DELLOK Yonghui
Certification: ISO9001
Model Number: KL/LL/L Finned Tube
Payment & Shipping Terms
Packaging Details: Wooden Case
Delivery Time: 1-3weeks
Payment Terms: T/T, L/C, D/A, D/P, Western Union, MoneyGram
Supply Ability: 10000 Pieces
Product Description

DELLOK Carbon Steel KL 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.

 

L/LL/KL Finned Tube Product Description

 

- KL Finned Tube(Knurled Aluminum Tubing)

This is manufactured similar to L fin except that the base tube is knurled before wrapping the 'L' shaped fin strip. After wrapping the fin strip, the fin foot is also knurled on the base tube to increase the bonding between the tube & fin. This will result in increased heat transfer performance.

Maximum Operating Temperature- 260 deg C

Tube Material - No theoretical limit.

Fin Material - Aluminium or copper

- L Finned Tube

Aluminium fin strip is formed to L shape and then tension wound to the base tube.

Maximum operating temperature for L fin is 150 deg C.

Fin Material - Aluminium (or) copper

Tube Material - No theoretical limit

- LL Finned Tube

Aluminium fin strip is formed to L shape and tension wound on the tube with overlapping of fins as shown in the figure.

Maximum operating Temperature for LL fin is 180 deg C.

Fin Material - Aluminium or copper

Tube Material - No theoretical limit

DELLOK  Carbon Steel KL Finned Tube 0

L/LL/KL Finned Tube(Knurled Aluminum Tube) Manufacturing Process

 

Applied Fin Tube is made with strip wrapped under tension around the base of the tube. Fins are welded to the base tube at the strip ends.

 

DELLOK  Carbon Steel KL Finned Tube 1

 

L/LL/KL Finned Tube(Aluminum Finned Tubes) Advantages

 

- L Finned Tube

Suitable for low-temperature application.

The finning type is the most cost effective method compared to the others.

The failed fins can be easily removed during production and bare tube can be used again for finning.

There is no need for make a helical grove over the core tube.

It is possible to place the fins on a very thin-walled tube with is particularly desirable when using expensive alloys as core tube.

The tube can withstand a temperature of up to 130°C without the risk of atmospheric corrosion or thermal stress.

- LL Finned Tube

This type of finned tube is often used as an alternative to the more expensive extruded type fin in corrosive environments.

Maximum operating temperature 170ºC.

- KL Finned Tube

Corrosion-resistant Tubes

Vibration resistance

It can withstand temperatures of up to 320°C (608°F).

High thermal performance and stress resistance combined with protection from air corrosion is a one-of-a-kind combo.

Any form of finned tube can be replaced with KL.

 

DELLOK  Carbon Steel KL Finned Tube 2

 

             L/LL/KL Finned Tube Properties

 

               Atmospheric Corrosion Resistance: OK

               Mechanical Resistance: Poor

               Fin Contact: Interference Fit

               Fin To Tube Bond :Moderate

               Heat Transfer Efficiency :Moderate

 

DELLOK  Carbon Steel KL Finned Tube 3

 

               L/LL/KL Finned Tube Applications

 

               - the petroleum, chemical and petrochemical process industries.

                 natural gas treatment

               - the steel industry: blast furnace and converter systems

               - power generation: steam turbine exhaust condensing

               - contact condensing with cooling of circulating condensate

               - fossil and nuclear power plants

               - air conditioning (Freon, ammonia, propane)

               - incineration of household refuse

               - compressor coolers, etc.

 

DELLOK  Carbon Steel KL Finned Tube 4


 

Knurled Aluminum Tube

 

 

Product Categories : L/LL/KL Finned Tube

Product Description

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.

 

L Finned Tube

 

L/LL/KL Finned Tube

 

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/LL/KL Finned Tube

 

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.

Fin Tube

 

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.

 

Aluminum Finned Tubes

 

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.

Knurled Aluminum Tube

 

L/LL/KL Finned Tube Applications

 

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!

 

Knurled Aluminum Tubing

 

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.

 
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Get in touch with us
Contact Person : Pax Yang
Tel : +862569521609
Fax : 86-25-6952-5709
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