Finned Tubes for Greenhouse Heating
Fin-tube radiators for greenhouse heating are widely used core heat dissipation equipment in modern large-scale agricultural facilities, such as multi-span greenhouses, solar greenhouses, and livestock farms.
- Fin Tube selection: High-frequency welded galvanized finned tubes, tension wrapped galvanized finned tubes
- Base Tube Material: carbon steel
- Surface Treatment: galvanized
Datang-Finned Tubes for Greenhouse Heating Professional Manufacturer
In modern agricultural greenhouse and shed heating systems,greenhouse fin tube radiators are one of the most widely used and efficient convective heat exchange devices.
Compared to traditional bare tubes (round pipes), they significantly improve heat transfer efficiency to the air by extending the surface area on the outer wall of the base tube.
Unlike standard residential radiators, the greenhouse environment typically features high humidity and potential corrosive vapors from pesticides or fertilizers. As a result, exceptionally high demands are placed on the durability, corrosion resistance, and heat output of these finned tubes.
Why Choose Fin Tubes for Greenhouse Heating?
-
High Thermal Efficiency & Compact Footprint
The heat transfer coefficient on the air side is much lower than that on the internal water or steam side. Adding fins increases the heat transfer surface area by several to over a dozen times. While meeting the same heating load requirements, this significantly reduces pipe space and minimizes shading within the greenhouse.
-
Gentle Temperature Rise & Uniform Heat Distribution
Fin tubes rely primarily on a combination of natural convection and radiation for heat dissipation. This maintains stable air circulation throughout the greenhouse and prevents localized overheating that can cause excessive moisture evaporation from crops.
-
High Corrosion Resistance in Humid Environments
Greenhouses feature high humidity levels and corrosive gases from fertilizer evaporation. Specialized greenhouse fin tubes typically utilize hot-dip galvanizing or aluminum/stainless steel composite processes to deliver superior corrosion resistance.
Finned Tubes for Greenhouse Heating Selection Recommendations
-
Choose High-Frequency Welded (HFW) Galvanized Finned Tubes if:
-
You are building commercial multi-span greenhouses, modern agricultural parks, or nursery greenhouses meant for long-term operation.
-
The heating system utilizes high-temperature hot water or steam with significant temperature fluctuations.
-
You prioritize low lifecycle maintenance and require a service life exceeding 10–15 years.
-
-
Consider Crimped T Galvanized Finned Tubes if:
-
You are setting up small-scale solar greenhouses, temporary structures, or projects with strict upfront budget constraints.
-
The heating medium stays at a low, stable temperature (e.g., 45–50°C heat pump systems) in a relatively dry heating zone.
-
Ready to Optimize Your Greenhouse Heating System?
Whether you need high-frequency welded (HFW) hot-dip galvanized fin tubes or crimped type hot-dip galvanized finned tubes, Datang Finned Tube provides engineered heating solutions tailored to your greenhouse dimensions and climate requirements.
Related Components You May Need
Manufactured using a high-frequency welding process,firmly welded, high in heat transfer efficiency, and durable against corrosion, it is widely used in industrial plant heating and greenhouse warming.
It is a cost-effective choice for low-to-medium pressure and low-to-medium temperature heat exchange scenarios. Economically priced, and widely used in agricultural greenhouse heating, residential heating systems, food drying lines, livestock farm heating.
Engineered for commercial greenhouses, our hot-dip galvanized finned tube flanges offer a robust, leak-proof, and corrosion-resistant connection for low-pressure hot water and steam heating systems.
Galvanized finned tubes with threaded connections eliminate on-site welding, provide tight sealing, and enable easy assembly—ideal for greenhouse sites with limited tools and quick installation requirements.
Finned Tubes for Greenhouse Heating Production Line
Hot-dip galvanized finned tubes are produced using high-frequency welding machines: utilizing the skin effect generated by high-frequency current, metallurgical bonding between the fins and the base tube is achieved without melting the base tube. This process features fast welding speed, a small heat-affected zone, and high bond strength (tensile strength ≥30MPa), making it the most mainstream production method for industrial finned tubes.
Hot-dip Galvanized Finned Tube Process
Process: The formed finned tube is immersed in molten zinc at 440-460℃, forming a 50-100μm thick zinc-iron alloy layer and a pure zinc layer on the surface. Performance advantages: The zinc coating has strong adhesion (≥5MPa), protecting the substrate through the “sacrificial anode” principle. It boasts a salt spray test lifespan of 5000-8000 hours and effectively resists humid, dusty, and mildly acidic/alkaline environments (pH 5-9). In contrast, electroplating (cold galvanizing) produces a thinner zinc layer (5-20μm), with weaker adhesion and significantly inferior corrosion resistance, making it suitable only for dry indoor environments.
Finned Tubes for Greenhouse Heating Airtightness Test
During the processing of finned tubes, welding is usually involved between the tube body and the ends and connectors. The high-temperature process of hot-dip galvanizing can sometimes stress the micro-welds.
Purpose: To check for the presence of micropores, cracks, or welding defects invisible to the naked eye, ensuring that the pipeline is a completely closed pressure system.
Hot-dip Galvanized Fin Tube Flange Welded
Engineered specifically for commercial greenhouses and agricultural nurseries, our Greenhouse Heating Package provides a complete, high-efficiency heat distribution system in one unified solution. Featuring heavy-duty hot-dip galvanized finned tubes along with precision-matched connectors (threaded ends, flanges, and mounting brackets), this all-in-one package eliminates on-site welding, drastically reduces field installation time, and provides maximum resistance against humid greenhouse environments.
Finned Tubes for Greenhouse Heating Package
To ensure your finned tubes arrive in perfect condition without bent fins or surface rust, every bundle is securely packed with steel framing, protective end caps, and heavy-duty waterproof wrapping. Designed for harsh long-distance sea freight, our packaging prevents fin deformation and moisture ingress during global shipping.
Case Study
Discover how Datang Finned Tube designed a cost-effective greenhouse heating system in Georgia using high-frequency welded DN65 galvanized fin tubes with flanges and 180-degree elbows.
Types of Hot Dip Galvanised Finned Tubes
The Galvanized Spiral Finned Tube from Datang Finned Tube is a high-efficiency heat transfer solution specifically engineered for harsh industrial environments. By combining advanced spiral winding technology with a premium hot-dip galvanizing process, our tubes ensure that the zinc coating fully seals the gaps between the fins and the base tube, providing exceptional corrosion resistance alongside superior thermal performance. Rigorously tested for fin pull-out strength and manufactured to international standards, Datang’s galvanized finned tubes are the ideal choice for boiler economizers, air preheaters, and petrochemical cooling systems where long-term durability and energy optimization are critical.
Hot-dip galvanized spiral round high-frequency welded finned tubes are high-efficiency, corrosion-resistant heat exchange elements widely used in industrial waste heat recovery, HVAC, and agricultural greenhouse temperature control. Combining high-frequency welding technology with hot-dip galvanizing, it possesses both excellent heat transfer performance and long-term corrosion resistance.
Hot-dip galvanized elliptical tubes with rectangular fins are high-performance heat exchange elements. They combine the hydrodynamic advantages of elliptical tubes with the large heat exchange area of rectangular fins, and then achieve corrosion protection and heat transfer contact through the hot-dip galvanizing process.
Related Product
Availability
Hot dip galvanised finned tubes are available from manufacturers and distributors specializing in heat exchanger products. It is important to specify the specific requirements, such as dimensions, material grade, and fin type, when purchasing titanium fin tubes.
A: We can provide galvanised fin tube samples for free.
A: After you confirm hot dip galvanised finned tube sample details, the samples will be ready for delivery in 3-7days,and will be sent to you via express and arrive in 3-5days.
A: Hot dip galvanised finned tube can be customized, we can make the new thermoforming or extruding mode based on your drawings and we can sign a confidentiality agreement about your patented product, pls contact us for any further information.
A: Always a pre-production sample,before mass production;always final inspection before shipment.
Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.
A: Datang provides factory inspection videos, and production progress will be sent to you via pictures and videos, allowing you to feel as if you are on-site.
A: Email: info@datangpipe.com
Whatsapp & Wechat: +86 15690122018