Hot-dip galvanized finned tube for greenhouse
What is Hot-Dip Galvanized Greenhouse Finned Tube?
The round wing hot-dip galvanized finned tube represents a specialized heat exchange solution engineered specifically for large and medium-sized greenhouse applications, including vegetable cultivation, flower production, and botanical research facilities. This advanced thermal technology combines efficient heat transfer with exceptional durability to meet the demanding environmental conditions of modern agricultural operations.
Hot-dip galvanized finned tube specifically designed for greenhouse heating systems
The manufacturing process involves precision finning operations followed by hot-dip galvanization, which significantly enhances anti-corrosion properties while providing an aesthetically pleasing finish. This dual-process approach ensures optimal performance in the humid, chemically challenging environments typical of greenhouse operations.
Technical Advantages of Greenhouse Finned Tubes
Hot-Dip Galvanized Greenhouse Finned Tube Performance
Independent testing shows that our greenhouse finned tube systems achieve heat transfer coefficients of 35-45 W/m²K, representing a 240% improvement over standard heating pipes while reducing energy consumption by approximately 30% compared to conventional greenhouse heating methods.
Technical Specifications and Materials
Base Tube Materials
• Carbon Steel: ASTM A179, A192
• Stainless Steel: 304, 316L (optional)
• Alloy Steel: T5, T11, T22
Fin Specifications
• Fin Height: 12-16 mm
• Fin Thickness: 1.2-1.8 mm
• Fin Pitch: 4-6.5 mm
• Fin Ratio: 8:1 to 12:1
Galvanization Details
• Coating Thickness: 60-80 μm
• Zinc Purity: ≥99.995%
• Process Temperature: 450-460°C
• Adhesion: Excellent (no flaking)
The round airfoil zinc hot-dip galvanized finned tube utilizes premium carbon steel materials, offering exceptional pressure resistance and mechanical strength that prevents cracking under thermal cycling conditions. Following flange welding, comprehensive hot-dip galvanizing treatment covers both internal and external surfaces, providing complete corrosion protection throughout the radiator assembly.
Performance Comparison: Greenhouse Finned Tubes vs. Alternative Heating Methods
| Parameter | Hot-Dip Galvanized Finned Tube | Standard Heating Pipes | Radiant Floor Heating | Unit Heater Systems |
|---|---|---|---|---|
| Heat Transfer Efficiency | 85-92% | 45-60% | 70-80% | 75-85% |
| Temperature Uniformity | Excellent (±1.5°C) | Poor (±5°C) | Good (±2.5°C) | Fair (±3.5°C) |
| Installation Cost | Medium | Low | High | Medium |
| Operating Cost (per year) | Low | High | Medium | Medium-High |
| Lifespan | 20+ years | 8-12 years | 15-20 years | 10-15 years |
| Maintenance Frequency | Low (Annual) | High (Quarterly) | Medium (Biannual) | Medium (Biannual) |
Hot-Dip Galvanized Greenhouse Finned Tube Application
Standard single hot-dip galvanized finned tube units measure 6 meters in length, with custom lengths available to accommodate specific greenhouse dimensions and layout requirements. Connection methodologies include flanged joints or standardized screw thread systems, providing installation flexibility for various greenhouse configurations.
Heat Output Characteristics
Our greenhouse finned tubes deliver optimal thermal performance across various operating conditions:
- Hot water systems (70-90°C): 450-650 W per linear meter
- Low-pressure steam (1-3 bar): 600-850 W per linear meter
- Thermal oil systems: 400-580 W per linear meter
- Geothermal applications: 350-500 W per linear meter
These versatile heating elements accommodate diverse thermal media including hot water (incorporating geothermal resources), steam, and heat transfer oils, making them compatible with virtually all industrial boiler systems and renewable energy sources employed in modern agricultural operations.
Greenhouse-Specific Applications
Hot-dip galvanized finned tubes demonstrate exceptional performance across various greenhouse types and cultivation environments:
Vegetable Production
• Tomatoes, cucumbers, peppers
• Leafy greens and herbs
• Root vegetables and specialty crops
• Optimal temperature range: 18-26°C
Floriculture Operations
• Roses, chrysanthemums, gerberas
• Orchids and tropical species
• Seasonal flowering plants
• Temperature precision: ±1°C critical
Nursery & Propagation
• Seed germination chambers
• Cutting propagation areas
• Young plant production
• High humidity tolerance: 80-95% RH
Greenhouse Finned Tube Operational Longevity and Maintenance
Properly installed and maintained hot-dip galvanized finned tube systems consistently deliver 20+ years of reliable service in greenhouse environments. The zinc coating provides sacrificial protection, actively preventing corrosion even if the surface becomes scratched or damaged. Regular visual inspections and annual cleaning represent the complete maintenance regimen, significantly reducing operational downtime and costs.
The combination of robust carbon steel construction, precision engineering, and comprehensive hot-dip galvanization establishes these greenhouse finned tube systems as the preferred thermal solution for modern agricultural facilities worldwide, balancing initial investment with long-term performance and reliability.