CuNi70/30 , CuNi90/10 , 26FPI With Internal Rib Condenser Low Fin Tubes
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.
More Carbon Steel Tube Materials Sheet We're Supplying:
Chinese Standard | Steel Grade/ No. | American Standard | Steel Grade/ No. |
GB5310 | 20G,15MoG,12CrMoG, 12Cr2MoG,15CrMoG, 12Cr1MoVG, | ASTM A106 | GR. A,B,C |
GB9948 | 10,20,12CrMo,15CMo | ASTM A53 | GR.A,B |
GB3087 | 10,20 | ASTM A192 |
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| ASTM A179 |
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| ASTM A210 | A-1,C |
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| ASTM A333 | GR.1,GR3,GR6 |
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| ASTM A334 | GR.1,GR3,GR6 |
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| ASTM A209 | T1, Ta, Tb |
German standard | Steel Grade/ No. | Japanese standard | Steel Grade/ No. |
DIN17175 | ST35.8, ST45.8 | JIS G3454 | STPG370,STPG410 |
DIN1629 | ST37.0, ST44.0, ST52.0 | JIS G3461 | STB340, STB410, STB440 |
British Standard | Steel Grade/ No. | European standard | Steel Grade/ No. |
BS3059-Ⅰ | 320 | EN10216-1 | P195TR1/TR2,P235TR1/TR2, |
BS3059-ⅡS1/S2; TC1/TC2 | 360,440, | EN10216-2 | 195GH,P235GH, |
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...
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Data sheet of Low Fin Tubes
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 | ||||||
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