Murphy Thermal Energy Co., Ltd.
Model No.: murphy-28
Brand: Murphy
Status: New
Applicable Industry: Machinery Repair Shops, Manufacturing Plant, Energy &Amp; Mining, Other, Construction Works, Home Use
Out-of-warranty Service: Video Technical Support, Online Support, Spare Parts
Where To Provide Local Services (in Which Countries Are There Overseas Service Outlets): None
Showroom Location (in Which Countries Are There Sample Rooms Overseas): None
Video Factory Inspection: Provided
Mechanical Test Report: Provided
Marketing Type: Ordinary Product
Place Of Origin: China
Species: Heat Exchanger Tube
Use: Heater Parts
Certification: Ce
Warranty Period: 1 Year
Service System: Free Spare Parts, Video Technical Support, Online Support
Packaging: wooden box
Productivity: TBD
Transportation: Ocean,Air,Express,Land
Place of Origin: China
Supply Ability: TBD
Certificate: ISO90001
HS Code: 8419909000
Port: Shanghai,Ningbo Port,Qingdao Port
Payment Type: T/T,L/C,D/P,D/A,Paypal
Incoterm: FOB,EXW,CFR,CIF,FAS,FCA,CPT,CIP,DDP,DDU,Express Delivery
L/LL/KL Finned Tube Product Description:
L type Fin Tube, The fin is helically wound around the base tube forming a strong mechanical contact between the tube and fin, thus improving the heat transfer efficiency.Also named Wrap On fin tube. This also give considerable corrosion protection to the base tube.
Maxumum working temperature: 270 F (130 C)
Application:
Air Cooler,Charge Air Chiller, Condenser,Evaporator, Fluid Cooler, Gas Cooler,Oil Cooler, Radiator, Refrigeration,Steam to Air Heat Exchanger,superheater etc.
- LL Finned Tube
LL fin tubeSame as L fin except the fin foot is overlapped giving more corrosion protection. Also named Over Lapped fin tube. The fin is helically wound around the base tube forming a strong mechanical contact between the tube and fin, thus improving the heat transfer efficiency.This type of finned tube is often used as an alternative to the more expensive extruded type fin in corrosive environments.
Maxumum working temperature:330 F (165 ℃)
Application:
Air Cooler,Charge Air Chiller, Condenser,Evaporator, Fluid Cooler, Gas Cooler,Oil Cooler, Radiator, Refrigeration,Steam to Air Heat Exchanger etc.
- KL Finned Tube（Knurled Aluminum Tubing）
KL type fin tube same as L fin tube,except that the base tube is knurled before application of the fin foot.Also named Wrap On Knurled type fin tube.After application,the fin foot is knurled into the corresponding knurling on the base tube thereby enhancing the bond between fin and tube,Resulting in improved heat transfer efficiency.
The fin is helically wound around the base tube forming a strong mechanical contact between the tube and fin,thus improving the heat transfer efficiency.This also give considerable corrosion protection to the base tube.
Maxumum working temperature:500 F (260 C)
Application:
Air Cooler fins,Charge Air Chiller, Condenser,Evaporator, Fluid Cooler, Gas Cooler,Oil Cooler, Radiator, Refrigeration,Steam to Air Heat Exchanger etc.
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.
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.
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
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.
L/LL/KL Finned Tube Specifications：
Product Specification Tube OD 19~51 (mm) 3/8”~2” Tube Wall Thk 1.65~3.0(mm) 0.065”~0.118” Tube Length ≤18,500 (mm) ≤60.7 ft Fin Thk 0.3~0.5 (mm) 0.012”~0.02” Fin Height 10~16 (mm) 0.394”~0.63” Fin Pitch 100~433 FPM 3~11 FPI Fin Type L,LL,KL Material Combinations Fin Material Aluminum (most common grade:Alu.1100, Alu.1060, Alu. 6063) Copper Tube Material C.S. (most common grade: A179, A192,SA210 GrA1/C,A106 Gr B ) S.S. (most common grade: TP304, 316) Copper (most common grade:UNS12200,14200, 70600, CuNi70/30, CuNi 90/10) Titanium (most common grade: B338Gr2) Applied
Temperature L Type:150°CL,LL Type:180°C,kL Type:260°C Type of Service L Type:Low temperature
LLType:Low temperature, corrosive atmospheric environment applications
KL Type:Medium temperature
Product Categories : L/LL/KL Finned Tube
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