Product Details
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DELLOK Power Indudtry Welded Longitudinal Finned Tube

^{DELLOK Power Indudtry Welded Longitudinal Finned Tube}

^{About us}

^{Professional heat exchanger factory with 20 years of experience,
providing you with one-stop heat transfer solutions to design
different heat exchangers according to your purposes (metallurgy,
food, petrochemical, pharmaceutical, beverage, wastewater,
refrigeration, etc...)}

^{Dellok Young is a professional manufacturer of various heat
exchangers integrating R&D, design, production and sales. The
heat exchangers produced are mainly used in petrochemical, electric
power, papermaking, building heating, mining and other industries,
such as air heaters, food industry plant protein powder, starch and
other air heater spray drying systems.}

^{The company now has a professional technical innovation team and
professional after-sales personnel. The company's production plant
covers an area of approximately 18,000 square meters, has multiple
professional and advanced CNC and automated production equipment,
and has obtained a number of professional certificates and patents.
The company has a professional foreign trade team and has trade
cooperation with various regions. Some global partners conducted
on-site inspections of the production plants and were very
satisfied with the inspection results and established long-term
strategic cooperative relationships with our company.}

^{Longitudinal
Finned Tube Product Description:}

^{Like welded helical finned tubes, this welded configuration can be
used for practically any heat transfer application, and is
particularly suited to high temperature, high pressure applications
with high fin-side temperatures. The choice of longitudinal finned
tubes versus helical finned tubes seems to be governed mainly by
geometric considerations. For example, some heater configurations
consist of finned tubes inserted inside other tubes — longitudinal
finned tubes are the obvious choice for such applications. In other
cases, users prefer longitudinal finned tubes for installations
where the tube will be oriented in a vertical direction — the fin
orientation facilitates fluid drainage on the fin side of the tube.
The longitudinal fin configuration is most commonly used in shell
and tube type applications such as in double-pipe and multi-pipe
heat exchangers where the longitudinal finned tube is telescoped
inside the bore of a larger tube shell. Heat is transferred between
the fluid passing through the bore of the finned tube and the fluid
passing through the bore of the shell. Fluids passing through the
bore of the shell are forced between the longitudinal fins. In this
case, a helical fin would block the flow of the fluid, rather than
allowing the fluid to run between the fins.}

^{Longitudinal Fin Tube Manufacturing Process:}

^{The longitudinal I/L or U shape fins are welded onto the core plain
tubes by resistance welding or welding with filler metal (Spot
welded).}

^{1. U bends tubes with longitudinal fins and Fin Tube
Coils are available for requesting.}

^{2. Longitudinal fins types: one-piece shape, standard U bent shape,
cut & twist, perforated type etc…}

^{3. The fin channels are welded to the tubes in opposite pairs. Fin
height, number of fins and fin thickness can be specified.}

^{4. Fins can be applied to either OD tube or NB pipe.}

^{Longitudinal
Fin Tube(Carbon
Steel Welded Pipe) Advantages:}

^{Increase of heat transfer rates for viscous liquids. Perforated fin
type used whenever drainage of liquid from fin channels become a
problem. Widely used in horizontal heat-exchangers.}

^{Brown
Fin Tube Properties:}

^{Improve heat transfer efficiency in efficient space.}

^{Reduces installation space on required heat transfer surfaces.}

^{Reduce the cost of the equipment, and have a high operational
reliability.}

^{The pressure drop on the side of the tube is reduced and the
operation cost is reduced.}

^{The stiffness of steel tube is improved, and the seismic
performance of steel tube is improved.}

^{Enhance heat transfer, reduce flow resistance and metal
consumption.}

^{Longitudinal Finned Tube(Welded
Steel Pipe) Applications:}

^{Chemical-, Petrochemical-, Oil-, Power
Industry,Heat-Exchangers,Fired Heaters,Gas Coolers and Heaters,Tank
Heaters}

^{Longitudinal Finned Tube Specifications:}

^{Product Specification}
^{Tube OD}	^{16~273 (mm)}	^{3/8”~10”(NPS)}
^{Tube Wall Thk}	^{2.11~25.4 (mm)}	^0.08”~1”
^{Tube Length}	^{≤12,000 (mm)}	^{≤39 ft}
^{Fin Thk}	^{1.0~1.5 (mm)}	^{0.04”~0.06”}
^{Fin Height}	^{5~25 (mm)}	^{0.2”~0.98”}
^{Fin Pitch}	^1U~36U
^{Fin Type}	^{“U”or“I/L”}
^{Material Combinations}
^{Fin Material}	^{C.S. (most common grade: Q235B)}
	^{S.S. (most common grade are AISI 304, 316, 409, 410, 321,347)}
	^A.S.
^{Tube Material}	^{C.S. (most common grade: A106 Gr.B)}
	^{S.S. (most common grade are TP304,316, 321, 347)}
	^{A.S. (most common grade are T/P5,9,11,22,91)}

^{Product Categories : Longitudinal
Finned Tube}

FAQ

^{Q1: Are you trading company or manufacturer?}

^{A: We are manufacture factory and we can accept OEM order. Welcome
to visit our factory and check our products.}

^{Q2: Can I have a sample ?}

^{A: Yes, welcome to place sample order to test and check quality.
Mixed samples are also OK.}

^{Q3: 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.}

^{Q4: What is the warranty for your products?}

^{A :We provide one year warranty for the products.}

^{Q5: What payment terms do you accept?}

^{A :Trade assurance,TT,Western Union.}

DELLOK Power Indudtry Welded Longitudinal Finned Tube

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Categories	Longitudinal Finned Tube
Brand Name:	Dellok Yonghui
Model Number:	Longitudinal Finned Tube
Certification:	ISO90001
Place of Origin:	China
MOQ:	1 piece
Price:	$50 - 5000 /Piece/Pieces
Payment Terms:	D/P, T/T, Western Union, MoneyGram, D/A, L/C
Supply Ability:	TBD
Delivery Time:	1-3 weeks
Packaging Details:	wooden box
connection size:	1/4
connection type:	threaded
fin height:	3.0mm
fin material:	aluminum
fin number:	20
fin pitch:	3.2mm
fin surface:	plain
fin thickness:	0.2mm
finned type:	longitudinal
material:	stainless steel
surface treatment:	polishing
tube diameter:	6.35mm
tube length:	1000mm
tube material:	copper
tube wall thickness:	0.5mm