High Strength Spiral Finned Tubes
Premium heat transfer tubes with smooth surface finish and new condition, designed for optimal thermal efficiency in industrial applications.
Product Parameters
| Item |
Base Tube O.D (mm) |
Base Tube Thickness (mm) |
Fin Height (mm) |
Fin Thickness (mm) |
Fin Pitch (mm) |
| Range |
25.4 ~ 1600mm |
2.5 ~ 40 mm |
0.5 ~ 20.0 mm |
0.5 ~ 3.0 mm |
5 ~ 25.4 mm |
| Material |
Carbon Steel, Alloy Steel, Stainless Steel |
| Length |
0 < L < 12000mm |
H-Fin Tube Specifications
| Product |
H-fin Tube |
| Base Pipe |
Welded or Seamless |
| Material |
Carbon steel, alloy steel, stainless steel, non-ferrous alloys and nickel alloys |
| Application |
H economizer, H evaporator, H superheater, H air heater and related systems |
Boiler Economizer Technology
Introduction
Boiler economizers are advanced heat exchange devices featuring finned tubes that efficiently heat liquids while maintaining temperatures below boiling points. We specialize in manufacturing three distinct economizer types: bare tube economizers, H finned tube economizers, and spiral finned tube economizers.
The H-finned tube economizer represents a high-efficiency heat exchange solution constructed from specialized H-finned tubes. Compared to conventional bare tube economizers, this advanced design significantly expands the heat exchange surface area while reducing the total number of tubes required. This configuration also increases flue gas flow area, effectively reducing flow velocity and minimizing abrasion.
H-finned tubes can be manufactured as double H finned tubes, providing exceptional structural rigidity suitable for extended tube row applications. The spiral finned economizer incorporates innovative design principles using spiral fin tubes to overcome common challenges of severe abrasion and limited service life.
Function
Economizers function to significantly reduce operational costs by optimizing thermal efficiency. By enabling compressor shutdown while maintaining adequate cooling capacity, these systems deliver substantial energy savings and operational cost reductions.
Boiler Economizer Specifications
| Description |
Boiler economizer |
| Material |
Alloy steel, Carbon steel, SA210C, SA213T22, etc. |
| Material standard |
ASTM, EN or ISO etc. |
| Dimension |
Customization |
| Weight |
Min: 10 ton, Max: 1000 ton |
| Smelting Process |
EF+LF+VD |
| Process |
Material→Ingot→Hot/Cold-Rolling→Heat treatment (Normalizing+tempering)→Inspection→Rough machining→UT→2nd Heat treatment→Finishing machining→Inspection |
| UT standard |
ASTM A388 or EN10228, etc |
Company Profile
Zhangjiagang Hua Dong Boiler Co., Ltd., established in 1985, specializes in manufacturing power station boilers, industrial boilers, HRSGs, waste incineration boilers, biomass boilers, and related heating surface components. We provide comprehensive integrated services spanning design, manufacturing, installation, and maintenance.
Our Advantages
38 Years of Industry Excellence
With over three decades of experience in industrial research, development, and manufacturing, we maintain substantial production capacity to meet diverse client requirements.
Quality Control
- Impact test and Strength calculation report with applied materials information
- 100% NDT (non-destructive inspection) report of steel plate, tube and electrode
- X-ray, γ-ray and liquid penetrant test inspection report (welding seam): ensuring comprehensive boiler quality
- Hydraulic test report: verifying standard working pressure and safety compliance
We maintain a complete quality assurance and control system certified according to International Quality Standards. Our quality assurance system strictly complies with national regulations, standards, and technical requirements, ensuring 100% process and product quality control. All products undergo stringent inspection and testing throughout manufacturing to guarantee compliance with contract requirements, national regulations, and standards.
Certifications
Owns verification certificates:
ISO 9001: 2015; CE certificate; EN ISO 3834-2; ASME certificate with "S", "U" and "NB" stamps, etc.
Global Sales
Frequently Asked Questions
Q1: How long is the warranty period?
We provide 18 months warranty for all spare parts (excluding fragile parts).
Q2: How can we guarantee quality?
- All machines strictly comply with ISO quality and CE system requirements
- Each procedure is crafted by professional skilled labor, followed by particular QC
- All product information can be checked in our efficient management system
Q3: What can you buy from us?
CFB Boiler, HRSG Boiler, Boiler Economizer, Boiler Fin tube, Boiler Air preheater, Boiler superheater, Boiler membrane wall, Boiler manifold headers and other pressure spare parts.
Q4: What kind of service do you provide?
Before sales:
Provide product information, market research forecasting, product customization, product processing, consultation and other services for your convenience.
After sales:
- Technical training according to customer requirements
- Replacement guarantee under warranty terms
- Supply of maintenance spare parts
- Regular call back or customer visits
- Prompt response to mail and phone calls for complaints or consultation
Accepted Delivery Terms: FOB, CFR, CIF, EXW, FCA
Accepted Payment Currency: USD, CNY
Accepted Payment Type: T/T, L/C, MoneyGram, Western Union, Cash
Language Spoken: English, Chinese
Q5: Are you a factory or trading company, where are you located?
We are a manufacturing factory located just 130km (2 hours by car) from Shanghai Airport. We offer pickup service at Shanghai for customer visits.
