How to use and maintain single headed pipes
1. Special attention should be paid to the heating medium when selecting a single headed tube. There should be no corrosive effect on the single head shell material.
2. In addition, the wiring should be exposed in the insulation layer of the heater or outside the heater, so that this part should not overheat and suffer damage. The heating area of the single head electric heating tube should be immersed in the heating medium to avoid slow heat dissipation and exceeding the allowable heating temperature, which may cause damage to the single head electric heating tube.
3. The input power supply should not exceed 10% of the rated voltage indicated on various single headed tubes. If applied below the rated voltage, the heat generated by the single headed tube will also decrease.
4. The wiring terminal of a single head electric heating tube should be kept clean and dry. Otherwise, it will reduce the insulation performance and be short circuited and broken down. If it is used in an environment with chemical corrosion, flammable, explosive liquids or gases, the wiring part of the single head electric heating tube should be tightly protected with insulation sealing devices to prevent accidents.
5. When heating certain substances such as adhesives, such as sodium nitrate, stearic acid, paraffin, etc., the power supply voltage should be reduced at the beginning of heating to reduce the heat generation of the single head tube. When all of them are melted into liquid, they should be raised to the rated voltage for heating.
6. If the single head pipe is used for a long time and there is a thick accumulation of pipe scale and oil scale on the surface, it should be removed regularly, otherwise it will reduce the heat transfer performance of the single head pipe and cause the surface heat load of the pipe to exceed the rated allowable limit and be damaged.
7. When connecting single ended pipes, two nuts should be tightened relative to each other. Do not apply too much force to avoid loosening the screws and damaging the single ended pipes.
8. Single headed pipes should be stored in a dry warehouse. If the surface is damp due to long-term storage, a megohmmeter should be used to measure the insulation resistance before use. If it is less than 1 megaohm/500 volts, the single head electric heating tube should be placed in a 200 degree drying oven for drying.
9. Special single headed pipes should carefully read the relevant instructions before installation and use to avoid damage.