High-Efficiency Greenhouse Heating Solution for Georgia: Datang Finned Tube’s Customized DN65 Galvanized Finned Tubes
Greenhouse cultivation demands exceptionally strict temperature control. A sudden drop in temperature can put an entire season’s crops at serious risk.
In March 2026, we received an urgent inquiry from a client in Georgia. Facing a harsh local climate, their greenhouse urgently needed a heating system upgrade to safeguard crop growth. The client’s requirements were highly specific: they needed DN65 galvanized finned tubes, and the solution had to strike the perfect balance between strict cost control and achieving the ideal heating temperature.
Precision Engineering: Datang Finned Tube’s Customized Solution
In response to the client’s pain points, the technical team at Datang Finned Tube intervened immediately. Rather than blindly recommending off-the-shelf products, our engineers analyzed the specific environmental characteristics of the Georgian greenhouse—marked by high humidity, frequent fog, and prolonged low winter temperatures. Based on these conditions and the client’s actual heating requirements, we performed detailed thermal calculations to design a tailor-made, cost-effective, and highly efficient greenhouse heating solution.
To ensure a seamless, leak-free installation process on-site, we provided a fully integrated piping system with rigorously verified technical parameters:
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Core Piping: Utilizes DN65 (OD 76mm, Wall Thickness 3mm) galvanized finned tubes with a length of 5.80 meters. High-frequency welding (HFW) was employed to ensure a flawless bond between the fins and the base tube, maximizing heat transfer efficiency.
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Fin Parameters: Features a fin thickness of 0.8mm, a height of 10mm, and a pitch of 12mm. This “golden ratio” design not only maximizes the heat dissipation area but also effectively reduces air resistance and dust accumulation—perfectly aligning with the client’s core demand for a budget-friendly yet highly warm solution.
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Matching Pipe Fittings: To facilitate rapid on-site construction, both ends of all tubes are pre-welded with flanges. The system also includes matching DN65 180-degree flanged elbows and DN65 blind flanges (equipped with a DN32 male thread interface, total length approx. 10cm). All matching fittings have undergone professional anti-corrosion paint treatment to fearlessly withstand the high-humidity environment of the greenhouse.
In the high-humidity and foggy environments typical of greenhouse cultivation, the quality of galvanized finned tubes directly determines their service life and heating efficiency. To ensure that our products do not suffer from issues such as loose fins, tube-fin unwelding, surface corrosion, or interface leakage under harsh operating conditions, Datang Finned Tube implements exceptionally stringent Quality Control (QC) standards throughout the entire production process:
Greenhouse Hot-dip Galvanized Finned Pipe Quality Control
Raw Material Source Control
High-quality finished products begin with premium raw materials.
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Base Tube Selection: We strictly select premium seamless steel tubes or boiler-grade welded tubes that comply with national or international standards (such as ASTM, DIN). Before entering the factory, they must undergo 100% Eddy Current Testing (ET) or Ultrasonic Testing (UT) to ensure the tube walls are entirely free of pinholes, cracks, or thinning.
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Steel Strip (Fin Material) Control: The fin strip must possess excellent thermal conductivity and forming flexibility, with a smooth surface free of oxide scale to guarantee current stability during high-frequency welding.
Core Process QC: High-Frequency Resistance Welding (HFW Quality Control)
High-frequency welding is critical to determining the heat dissipation efficiency and longevity of finned tubes. If the bonding rate is low, the fins will loosen over a few years due to thermal expansion and contraction, causing a catastrophic drop in heating capacity.
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Weld Fusion Rate Inspection: We ensure the weld fusion rate between the fins and the base tube reaches 98% or higher. During production, regular metallographic microscope inspections are conducted to observe the fusion of welding grains.
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Mechanical Property Testing: Random sampling is performed for Fin Pull-off Tests. When the fin is forcibly torn, the fracture must occur on the fin base material itself rather than at the weld line, proving a “parent-metal grade” bonding strength.
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Dimensional Accuracy: We strictly control the total length tolerance of the finned section within -1mm to +1mm, the fin pitch tolerance within -0.2mm to +0.2mm, and ensure the perpendicularity deviation between the fin and the steel tube stays within -1° to +1°.
Hot-Dip Galvanization Quality Control
Since greenhouse humidity levels remain above 80% year-round and can even hit 100% (condensation), corrosion prevention is a top priority.
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Pre-treatment Purity: We strictly execute the pickling, water rinsing, and fluxing tank processes to thoroughly eliminate rust and oil stains from the gaps between the base tube and fins, preventing any “bare spots” or “peeling” during galvanization.
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Zinc Layer Thickness Inspection: For galvanized finned tubes, coating thickness tests are conducted to ensure the formation of a 50–150μm thick zinc-iron alloy layer, providing adequate “sacrificial anode” anti-corrosion protection.
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Adherence & Appearance Inspection: The galvanized surface must be smooth, free of zinc drips, lumps, or rough zinc dross. Fin adherence is tested via hammering or cross-hatch methods to ensure the zinc layer does not flake during transport or on-site installation impacts.
Non-Destructive Testing (NDT) & Pressure Testing
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Eddy Current Testing (ET): Utilized to precisely detect any micro-defects within the welds.
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Hydrostatic or Pneumatic Testing: Pressure tests are conducted on the tubes to ensure that the tube body and welds remain completely leak-free under high pressure, safeguarding the operational safety of the entire system.
Fittings & Prefabrication QC
For one-stop integrated solutions involving matching components like flanged elbows, blind flanges, and pre-welded flanges (as seen in our Georgia project):
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Welding Bevel & Alignment: When mating flanges with DN65 base tubes, specialized jigs and fixtures are used to lock them in place, ensuring precise coaxiality and preventing bolt hole misalignment during on-site connection.
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Anti-Corrosion Continuity: The surfaces of matching fittings—such as elbows and blind flanges—undergo meticulous, zero-blind-spot professional anti-corrosion painting or equivalent hot-dip galvanization, ensuring that accessories never become the “weakest link” of the system’s corrosion defense.
Our Quality Commitment: Every batch of greenhouse finned tubes produced by Datang Finned Tube comes with a complete set of Material Traceability Reports, Zinc Layer Thickness Reports, and Pressure Test Compliance Certificates. Through our rigorous, industrial-grade quality control, we safeguard the warmth of agricultural greenhouses through the harshest winters.
From Blueprints to After-Sales Support
When this batch of customized greenhouse finned tubes and the full set of accessories successfully arrived in Georgia, our service did not stop. Recognizing the potential technical barriers involved in an international installation, Datang Finned Tube’s after-sales team—led by senior technical engineers—took a proactive approach. We not only provided detailed blueprint design solutions but also guided the client’s on-site staff through every step via one-on-one video calls. From the sealing of flange gaskets to the alignment checks of the elbows, all on-site installation challenges were resolved within just a few hours.
Under our remote video guidance, the originally greenhouse radiator pipe complex installation process became clear and straightforward. We successfully helped the client eliminate potential hazards during installation, ensuring that the entire heating system ran perfectly on its very first try.
Client Feedback: Trust That Exceeded Expectations
“Datang Finned Tube not only helped us save unnecessary budget but also solved our on-site installation difficulties through professional video guidance. This was a flawless collaboration!” After sending feedback that the greenhouse had warmed up smoothly, the client expressed high recognition of our professional design and after-sales service.
Results and Impact
Today, these high-efficiency greenhouse heating finned tube manufactured by Datang are operating seamlessly in Georgia. They effectively maintain a warm environment inside the greenhouse, enabling the crops to thrive even in the harsh winter.
By combining manufacturing expertise with a one-stop integrated accessory service, Datang has once again proven that we do not just provide industrial components; we are dedicated to bringing peace of mind and hassle-free solutions to our users. No matter where your project is located, Datang is your reliable partner for high-efficiency heat transfer solutions.
As a leading greenhouse finned tube manufacturer with years of deep industry expertise, Datang is dedicated to providing global clients with full-lifecycle services ranging from R&D and customization to final installation. We are not only your trusted galvanized finned pipe supplier but can also offer highly competitive greenhouse finned radiator price options alongside comprehensive greenhouse heating pipe wholesale services.
Whether you are looking for standard greenhouse finned tube products, specialized greenhouse heating finned tube systems designed for harsh winter climates, or a fully tailored custom finned tube for greenhouse solution, Datang can precisely meet your core requirements. Our finned pipe for greenhouse heating and agricultural greenhouse fin tube solutions have been field-proven across multiple international projects, effectively upgrading traditional greenhouse radiator pipe setups to achieve significantly lower energy consumption and more uniform temperature control.
Choosing Datang means choosing efficiency, peace of mind, and a long-term guarantee for a bountiful harvest. Contact us today to get your exclusive greenhouse heating upgrade solution!
