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Brand Name : | YUHONG |
Model Number : | Corrugated Tube |
Certification : | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
Payment Terms : | L/C, T/T |
Delivery Time : | 7DAYS |
TP304 / TP304L TP316 / TP316L Stainless Steel Corrugated Tubes For Heat Exchangers PA Fin Tube
A corrugated tube is a pipe with a helical groove obtained from a plain tube by cold forming. The number of starts of the helix can be changed as well as the angle to optimize the heat transfer and performance.
Quick Detail:
General Low Fin Tubes Production Capacity | Specifications of Low Fin Tubes('N' Fins) |
Finning Facility: 10 finning machines; Daily capacity up to 3000 meters; | Tube OD: 12.7 mm~25.4mm Tube Length: 18 meters max. Fin Height: 1.2 mm ~2.77mm Fin Thickness: appr. 0.3mm Fin Pitch: 30 FPI /28 FPI/ 26 FPI/ 36 FPI /43 FPI |
Description:
Manufacturing process: The fins are rolled out of outer wall of the plain tubes by a pass
roller. Tubes and fins are in same piece tube. We call it “N” fin type.
Tube Materials:
ASTM A213 / A213M :Seamless Ferritic & Austenitic Alloy-Steel
Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A312/ A312M : Seamless, Welded, and Heavily Cold Worked
Austenitic Stainless Steel Pipes
ASTM A269/ A269M :Seamless and Welded Austenitic Stainless Steel
Tubing for General Service
Delivery Range of Low Fin Tubes
We can provide the integral low fin tubes with un-finned section gaps( 5mm Min.) in the middle of core tube OR
bent with designed Bend Radius.
Quality Test:
The integral low fin tube quality is assured by hydrostatic or
pneumatic tests, eddy current tests & MARCO tests in order to
verify design specifications.
Acceptance Ceritia:
WOLVERINE / HPT / GEWA-K & GEWA-KS
Delivery Condition:
Tube ends are square cut, free burrs, internally dried and air
blown clean, externally coated with varnish.
The desiccants are put into the each package for continental
transportation.
Applications:
The Integral Low Finned Tubes find the preference in the following
industrial sectors:
Specifications:
Tube and fins consist of same tube and materials as carbon steel ,
low-alloy steels , stainless steel , brass , copper , cooper-nickel
alloys , aluminum bronze , nickel alloys , titanium etc...
Plain tube (mm) | Finned section dimensions (mm) | Ratio | De | |||
D×t | Tp | dd | dr | di | η | mm |
19×2 | 0.8 | 18.8 | 17 | 134 | 2.8 | 17.9 |
19×2 | 1 | 18.8 | 16.8 | 13.4 | 2.5 | 17.8 |
19×2 | 1.25 | 18.8 | 16.6 | 13 | 2.2 | 17.8 |
19×2 | 1.5 | 18.8 | 16.6 | 13 | 2 | 17.7 |
19×2 | 2 | 18.8 | 16.4 | 13 | 1.7 | 17.5 |
25×2.5 | 0.8 | 24.8 | 23 | 18.8 | 2.8 | 23.9 |
25×2.5 | 1 | 24.8 | 22.6 | 18.8 | 2.75 | 23.7 |
25×2.5 | 1.25 | 24.8 | 22.3 | 18 | 2.5 | 23.6 |
25×2.5 | 1.5 | 24.8 | 22.3 | 18 | 2.2 | 23.5 |
25×2.5 | 2 | 24.8 | 22 | 18 | 1.8 | 23.4 |
25×2.5 | 2.5 | 24.8 | 22 | 18 | 1.6 | 23.3 |
D------Outside diameter of plain end section Dof----Diameter of top fins Dr-----Root diameter of finned section Di-----Inside diameter of finned section T------Wall thickness of plain end section Tp-----Fin pitch De----Equivalent diameter of finned tube L------Plain tube end length | ||||||
Please email us for more information. |
ASTM A1012 : Standard Specification for Seamless and Welded Ferritic,
Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger
Tubes With Integral Fins.
ASTM B891: Standard Specification for Seamless and Welded Titanium and
Titanium Alloy Condenser and Heat Exchanger Tubes with Enhanced
Surface for Improved Heat Transfer.
ASTM B924:Standard Specification for Seamless and Welded Nickel Alloy
Condenser and Heat Exchanger Tubes With Integral Fins.
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