Carbon Steel/Stainless Steel Spiral Finned Tube for Boiler Economizer and Air Preheater
H-type finned tubes are designed for waste heat recovery from flue gas exhaust in power plant boilers, industrial boilers, kilns, and marine power plants. These components maximize heat utilization, improve fuel efficiency, and reduce emissions while serving as enhanced heat exchange elements positioned at the tail of fuel duct systems.
The double H-type finned tube features an innovative separate structure that prevents ash accumulation and gas resistance issues common in spiral finned tubes. Its cantilever beam rib design enhances vibration under pulsed airflow, facilitating effective ash removal.
Key benefits include expanded heating surface for improved heat transfer coefficient and self-cleaning functionality that minimizes smoke dust deposition, blockage, and wear - ensuring extended service life and safe operation of waste heat boilers.
Product Specifications
| Description |
Heat boiler economizer, steam boiler economizer, oil boiler economizer, coal steam boiler economizer, Gas boiler economizer |
| Material |
Alloy steel, Carbon steel, SA210C, SA213T22 |
| Standard |
ASME, GB, EN |
| Main Process |
H fin welding |
Manufacturer 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 services from design and manufacturing to installation and maintenance.
Our Advantages
38 Years of Industry Experience
With nearly four decades in research, development and manufacturing, we maintain substantial production capacity to meet global demand.
Quality Control System
- Impact test and strength calculation reports with complete materials documentation
- 100% non-destructive inspection (NDT) of steel plates, tubes, and electrodes
- Comprehensive welding inspection including X-ray, γ-ray and liquid penetrant tests
- Hydraulic pressure testing to verify working pressure standards and safety
Our complete quality assurance system complies with international standards, ensuring all manufacturing processes and final products meet stringent contract requirements and national regulations through rigorous inspection protocols.
Certifications
ISO 9001:2015
CE Certificate
EN ISO 3834-2
ASME with S, U & NB Stamps
Global Distribution
Frequently Asked Questions
Q1: How long is the warranty period?
We provide 18 months warranty for all spare parts (excluding fragile components).
Q2: How do you guarantee quality?
- Strict compliance with ISO and CE system requirements
- Professional craftsmanship with dedicated quality control at each stage
- Comprehensive product tracking through our management system
Q3: What products do you offer?
CFB Boilers, HRSG Boilers, Boiler Economizers, Fin Tubes, Air Preheaters, Superheaters, Membrane Walls, Manifold Headers, and other pressure components.
Q4: What services do you provide?
Before Sales:
Product information, market research, customization, processing consultation, and other support services.
After Sales:
- Technical training per customer requirements
- Warranty replacements
- Maintenance spare parts supply
- Regular customer follow-ups
- Prompt response to inquiries and complaints
Delivery Terms: FOB, CFR, CIF, EXW, FCA
Payment Options: T/T, L/C, MoneyGram, Western Union, Cash
Currencies: USD, CNY
Languages: English, Chinese
Q5: Are you a factory or trading company? Where are you located?
We operate as a manufacturing facility located just 130km (2 hours by car) from Shanghai Airport. We provide pickup service from Shanghai for visiting clients.
Votre message doit contenir entre 20 et 3 000 caractères!
