The Spiral Water Heating Tube is a specialized immersion element engineered specifically for the rapid and efficient heating of water and aqueous solutions. Featuring a unique helical design, this tube maximizes the heating surface area within a compact volume. It is the ideal choice for water storage tanks, instant heaters, and industrial process water systems where space is limited, and consistent temperature control is critical.
Key Features & Benefits
Anti-Scaling Design: The spiral geometry promotes natural convection and water circulation, reducing the likelihood of "dead zones" where sediment and limescale can accumulate. This helps maintain efficiency and extends the lifespan of the heater.
Hygienic Construction: Built with a Stainless Steel 316L sheath (low carbon), which offers superior resistance to pitting corrosion caused by chlorides in water. This ensures the water remains clean and safe for domestic, commercial, and food-grade applications.
Rapid Heat Transfer: The extended surface area of the spiral design allows for faster heat-up times compared to straight elements. The high-density Magnesium Oxide (MgO) filling ensures there are no air gaps, transferring heat from the resistor wire to the water instantly.
Compact Footprint: By coiling the tube, a long heating element can be installed in narrow tanks or vessels with limited headspace, providing high power density without the need for a large tank opening.
Advanced Quality Assurance & Testing Protocol
To guarantee safety and reliability in water heating applications, every Spiral Water Heating Tube undergoes rigorous testing:
Leak Testing (Submersion Test): The element is pressurized and submerged in a test bath to visually inspect for micro-bubbles, ensuring the metal sheath is 100% leak-tight.
High-Voltage Insulation Test (Hi-Pot): Tested at 2000V AC + 2x rated voltage for 1 minute to verify the dielectric strength of the insulation, preventing any risk of electric shock.
Insulation Resistance Test: Using a 500V DC Megger, the resistance is tested to ensure it exceeds 500 MΩ at room temperature, guaranteeing the MgO core is dry and free of moisture.
Dry-Fire Protection Simulation: While not a standard test, the design is validated to withstand high surface temperatures without immediate failure, providing a safety buffer if the water level drops.
Core Applications
Domestic & Commercial Water Heaters: Used in storage tanks for homes, hotels, and hospitals.
Instantaneous Water Heaters: Ideal for point-of-use heaters due to the high power density.
Solar Thermal Systems: Used as a backup heating element in solar water storage tanks.
Industrial Process Water: Heating water for清洗, sterilization, and manufacturing processes.
Swimming Pool & Spa Heaters: Providing reliable heat for recreational water systems.
Certifications
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