DELLOK 90 Degree Bends Boiler HH Type 51mm BS3059 Square Fin Tube - 18m Length, 1.5-3.5mm Fin Thickness
DELLOK 90 Degree Bends Boiler HH Type 51mm BS3059 Square Fin Tube is engineered for high-performance heat transfer applications in marine boilers, economizers, and heat exchangers. These precision-engineered tubes feature welded square fins with 90-degree bends to optimize thermal efficiency.
Tube OD: 51mm maximum
Tube Length: 18 meters maximum
Fin Thickness: 1.5mm - 3.5mm
Fin Pitch: 10mm minimum
Daily production capacity: 20 tons
6 dedicated H-FIN finning machines
10,000+ square meter manufacturing facility
| Component | Material Options | Standards |
|---|---|---|
| Core Tube | Carbon Steel, Alloy Steel, Heat Resistant Steel, Stainless Steel | A106/A179/A192/A210, TP304/304L, TP316/316L, TP347, P5/T5/P9/T9/T11/T22 |
| Studs Material | Carbon Steel, Stainless Steel | TP409/410, TP304/304L, TP316/316L |
- Chemical Composition Inspection
- Mechanical Properties Testing
- Surface and Dimension Verification
- Non-destructive Testing
- Hydrostatic Pressure Testing
- Eddy Current Testing
- Tensile Strength Testing
External coating: Red oxide zinc phosphate primer with volatile corrosion inhibitor (VCI) in water-soluble tablet form for internal protection. Additional options include black painting, anti-corrosion oil, galvanized coating, or custom specifications.
- Preferred choice for high-pressure boiler applications
- Customizable fin shapes and sizes via stamping process
- In-line fin and tube spacing for easy cleaning
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