Customized High Security Copper Water Heating Element

Customized High Security Copper Water Heating Element Notice before inquiry: 1. For heating element of this serie, we have many shapes for you to choose from. Such as the I-shape, U-shape, W-shape(M-shape), O-shape and so forth. 2. And for the surface color, besides the copper color, we also can make it to black, or the dark green. Introduction: The electric tubular heater is a kind of heating element. It is covered with the metallic conduits(including the stainless steel, copper tube etc.), with the spiral electric heating wire evenly distributed along with the center shaft of the heating element. Filled the spacing with magnesium oxide sand that is of good thermal conductivity. And sealed with silicone at the end of tube. Metal covered heating element of this kind is be used to heat the air, metal mold and all kinds of liquid. Technical requirements: 1. Unit for dimension: mm, the unmarked size tolerance: ±0.20mm 2. When the voltage is 28V DC, the rated power is 200W±10% 3. The resistance value: 3.7-4.1 Ω 4. The outer wall of the heating element is stainless steel 304, with green treatment on the surface; thickness: 0.5mm. 5. Cold withstand pressure: 1500V/min 6. Cold insulation > 500 M Ω , DC500V 7. Under the rated voltage, the leakage current shall not exceed 0.5mA 8. The appearance of metal heating element shall not have obvious mechanical damage or partial expansion. Pls kindly let us know the below if there's any question or inquiry: 1. your technical drawing or pics for our reference; 2. more detailed specifications; 3. your expected order quantity.