Split Pressurized Solar Systems

A: The system relies on an intelligent controller. During rainy days or periods of low solar radiation, when the temperature differential ($\Delta T$) is insufficient, the system automatically triggers the integrated auxiliary heating source (such as an electric immersion heater, air-source heat pump, or gas boiler) to ensure a 24/7 uninterrupted hot water supply.

A: Yes, DELAN is a direct manufacturer with an in-house ISO-certified facility and an experienced R&D team. We fully support full-scale OEM/ODM services, including private labeling, customized tank coil configurations, and specific collector sizing for harsh environments. Our standard MOQ is a 20GP container to ensure maritime transport safety, but we support flexible sample ordering for initial project evaluation.

A: We use industrial-grade export packaging. Vacuum tubes are secured in high-density molded styrofoam boxes, tanks are palletized with protective corner guards, and workstations are individually crated. We provide 1%-2% complimentary spare vacuum tubes with every container order to cover any transit contingencies.

A: We provide a 5-year warranty on solar collectors and a 3-year warranty on pressurized water tanks. For global B2B partners, we offer lifetime technical support, including remote installation guidance, CAD plumbing/electrical schematic designs, and troubleshooting consultations.

A: Generally, the vertical distance can go up to 20–30 meters depending on the circulation pump capacity selected in our solar workstation. Our engineering team calculates hydraulic pressure drop variations for large-scale commercial installations to choose the optimum pump head.

A: Absolutely. Our certifications including Solar Keymark (for European BAFA/Subsidies) and CE enable international project contractors and local wholesale distributors to effortlessly pass local legislative approvals and leverage high-value government environmental grants.