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DN20
Solaraven
8419901000
The pre insulated solar hose specially works for connecting hot water storage tank with solar thermal panels, serving as the essential circulatory artery in demanding renewable energy configurations. By establishing a secure, highly efficient thermal bridge, this specialized piping ensures that the heat captured by the collector array is transferred with minimal thermal degradation. Available in versatile diameter specifications including 1/2inch, 3/4inch, 1inch, and 2inch, the piping adapts effortlessly to varying flow rate requirements. The physical design features a precisely engineered corrugated profile, providing exceptional pliability to navigate tight architectural spaces. Installers will immediately notice the tactile flexibility of the line, which bends smoothly around corners without kinking, significantly reducing the physical exertion required during complex rooftop or utility room routing.
At the core of this system is a flexible high-grade stainless steel tube 316L(or 304). During manufacturing, the raw metallic structure undergoes a rigorous 1050℃ high temperature annealing heat treatment. This intense thermal processing eliminates internal stresses within the steel matrix, resulting in a highly workable metal that resists micro-fracturing even after decades of continuous thermal expansion and contraction. The operational safety margins are exceptional, with a maximum pressure up to 17.5 bar and a rated burst pressure 200 bar, protecting the entire loop against severe fluid hammer effects. Furthermore, the interior surface maintains a strict food grade standard, guaranteeing that the circulating heat transfer medium remains entirely unpolluted by metallic leaching, preserving the chemical balance of the fluid over the long term.
Encasing the metallic core is a thick, protective layer of 100% Genuine EPDM insulation pipe. To the touch, this elastomeric foam feels dense, smooth, and highly resilient, snapping back instantly when compressed. This outer jacket is inherently light weight, flexible, waterproof, fire resistance, UV-resistant, creating an impenetrable barrier against harsh outdoor microclimates. Whether subjected to pounding rain, freezing sleet, or relentless summer sun, the insulation prevents environmental degradation. The thermal stability is extraordinary, supporting a continuous Work Temperature rang from -200℃ to 150℃, and capable of withstanding extreme stagnation spikes Max to 175℃ without melting, hardening, or losing its insulative properties.
To accommodate diverse site layouts and minimize the need for mechanical joints, each solar hose length is available in 10,15,20,30 meters as standard off-the-shelf configurations. Recognizing that large-scale commercial arrays or unique residential architectures often demand specific continuous runs to eliminate weak points, other length is available upon customer's request. This commitment to dimensional flexibility ensures that procurement teams can source the exact measurements required for their specific engineering schematics, reducing material waste and accelerating the overall deployment timeline.

Solar hose advantages extend far beyond basic fluid transport, directly impacting site logistics and long-term thermal efficiency. The intelligent integration of premium metals and advanced elastomers results in a component that actively enhances the performance of the entire heating network.
The entire assembly is remarkably light weight and easy to transport, significantly reducing the physical strain on installation crews carrying materials up scaffolding or across expansive commercial roofs. The corrugated internal geometry creates a large surface area (improving heat transfer efficiency) compared to smooth-walled alternatives, allowing the thermal fluid to absorb and release energy more effectively. For streamlined inventory management and rapid deployment, the product supports roll package (10m-30m each roll), allowing for compact storage and easy unspooling directly at the installation site.
Connection security is paramount in pressurized thermal loops. Every line comes equipped with male or female brass connectors for easy installation. These precision-machined fittings feature deep, clean threads that engage smoothly, allowing technicians to achieve secure, leak-proof mechanical joints in a fraction of the time required for traditional soldering or welding. The tactile feedback of the solid brass tightening against the stainless steel ensures a confident, permanent seal.
The foundational material made of 304 or 316L stainless steel ensures exceptional longevity in corrosive environments, resisting oxidation even when exposed to atmospheric moisture or aggressive thermal fluids. Because the interior is strictly food grade, it prevents any internal scaling, bacterial growth, or chemical reactions that could impede flow rates over time. This uncompromising material selection guarantees that the system will maintain its original hydrodynamic performance year after year.
Being fully pre insulated at the factory fundamentally changes the installation workflow. Site crews no longer need to perform the tedious, time-consuming task of manually sliding tight foam sleeves over raw pipework or taping exposed joints. The factory-applied insulation guarantees a uniform thickness and consistent thermal resistance along the entire length of the run, eliminating the cold spots and condensation risks typically associated with field-applied lagging.


To provide a clear overview of the system's engineering parameters, the following table details the exact specifications that make this piping solution ideal for demanding thermal applications. Every batch undergoes rigorous pressure decay and thermal conductivity testing before dispatch, ensuring that the final installation delivers unpolluted thermal fluid with near-zero heat loss.
| Core Material | Flexible high-grade stainless steel tube 316L(or 304) |
|---|---|
| Insulation Material | 100% Genuine EPDM insulation pipe |
| Operating Pressure | Maximum pressure up to 17.5 bar |
| Burst Pressure | Rated burst pressure 200 bar |
| Temperature Range | Work Temperature rang from -200℃ to 150℃, Max to 175℃ |
| Manufacturing Process | 1050℃ high temperature annealing heat treatment |
| Available Lengths | 10, 15, 20, 30 meters (other length is available upon customer's request) |
| Available Diameters | 1/2inch, 3/4inch, 1inch, 2inch |


