TP304 / TP304L , TP316 / TP316L , Austenitic Stainless Steel Corrugated Low Fin Tube
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:
- Heating systems
- Ventilation systems
- Refrigeration and climate control systems
- Mechanical engineering
- Automotive manufacturing
- Chemicals and pertrochemical and power plant technology
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 | ||||||
Please email us for more information. | ||||||
Competitive Advantage:
- We have more than 10,000 square meters workshop, including 10 finning machines, daily extrusion capacity up to 3,000 meters.
- The finning machines of Integral Low Fin Tubes are designed and assembled by ourselves and we can offer you finning machines and all accessories etc...
- The Integral Low Fins are rolled out of the tube surface to increase the tubes external surface area, without affecting any others dimension.
- Low Fins are very useful for tight condensers and exhibits high efficiency of heat transfer.
- Economical solutions of heat exchange problems of media with different heat conduction abilities or different current conditions.
- High chemical-, thermal- and mechanical resistance, suitable for rough operation conditions.
