Function: 1. Solid stainless steel flange laser welding ensures clean welds and prevents water leakage 2. Durable construction for long service life and reliable operation 3. 1.0mm thick stainless steel tube resists deformation over time 4. High thermal efficiency, stable performance, and simple design 5. Suitable for solar energy, air energy, and engineering water tanks Specification: Item Type: Heat Pipe Material: Stainless steel, brass Working Voltage: 380V Power: 9KW Length: 360mm Tube Diameter: Approx. 10mm / 0.4 inch Leakage Current: <0.5mA Thread Diameter: DN40 (47mm / 1.9in) Application: Solar energy, air energy, engineering water reservoirs Package List: 1 x Heating Pipe 1 x Rubber Pad Note: Do not operate without water. Avoid leaving the heating pipe in a dry state for extended periods.