Corrosion-resistant magnetic pump installation points and antifreeze

[Asia Pump Network News] Corrosion-resistant magnetic pump is mainly used for corrosive liquid transport. Its range of applications is very wide, mainly used in environmental protection, copper, electronics, nuclear industry, iron and steel smelting, gas, chemical, wastewater treatment and other industries. Winter, the instrument is the most prone to problems, so we have to prevent accidents, the following to share with you the corrosion-resistant magnetic pump installation points and antifreeze. Corrosion-resistant magnetic pump installation points: 1. Magnetic pump should be installed near the tank as much as possible, and lower than the tank (self-flowing liquid). 2. If the magnetic pump is installed above the liquid level in the tank (suction type), a foot valve must be installed in the filling line and the inlet line. 3. To choose a flat place that will not be vibrated by other machines as the installation location, and leave enough space for maintenance and repairs in the future. 4. Fixed pump base area must be greater than the pump base area. If the fixed area is not big enough, the base will be damaged due to stress concentration. 5. If the magnetic pump is vibrated during operation, install an expansion joint between the pump and the pipeline to cancel the vibration, otherwise the pump, management, pressure gauge, etc. will be damaged. 6. Magnetic pump inlet pipe should be as short as possible and bending the least, while the weight of pipe and temperature stress can not be directly on the magnetic pump. 7. Irrational part of the entrance will have cavitation, such as inhalation end of non-vacuum, suction stroke is too large, the inlet pipe is too long and so on. The diameter of the inlet pipe must be greater than or equal to the suction inlet diameter. 8. When the magnetic pump to transport dangerous liquids, to install flushing pipe, in order to dismantle the pump when the internal magnetic pump cleaning. 9. In these cases, the outlet pipe must be equipped with a check valve: the outlet pipe is too long, the total head more than 15m, the height difference between the tank surface and the outlet pipe exceeds 9m, and several pumps are connected in parallel to the same pipe. 10. Install a valve on the outlet line to regulate flow and prevent overloading of the motor. When installing both the valve and the check valve, the check valve is to be installed between the magnetic pump and the valve. 11. If the outlet pipe distance is too long, the pipeline to be installed on the vent. Corrosion-resistant magnetic pump start-up and shutdown steps: 1. To the magnetic pump perfusion fluid. Close the outlet valve after filling completely. 2. Perform jog operation to check whether the motor is steered correctly (the switching time should not exceed 1 second, and observe whether the direction of motor fan is consistent with the arrow on the pump). 3. Turn on the power. Adjust outlet pressure and outlet flow. Gradually open the outlet valve within 1 minute, taking note of the ammeter's indication to prevent the motor from overloading. 4. If there is an unexpected situation at startup, immediately cut off the power and troubleshooting according to the operating instructions to solve the problem. 5. Run for a period of time to stop work to be shut down, you should gradually close the outlet valve, the flow to the minimum and then cut off the power. It is forbidden to use a solenoid valve to close the valve immediately, otherwise water hammer will damage the pump body, especially when the outlet pipe is very long. 6. Frequent start / stop of the magnetic pump will shorten the service life of the pump. The number of start and stop every hour no more than 6 times. How to protect the magnetic pump in cold winter? When the magnetic pump is stopped in cold weather, the liquid in the pump will solidify and damage the pump. Need to use a flushing tube to clean the pump, and pump the liquid completely discharged. In the case of short stop time, if the liquid is not allowed to be discharged, you need to heat to prevent liquid condensation. At present, corrosive liquid delivery in the domestic market is the most widely used corrosion-resistant pump made of stainless steel, and its corrosion-resistant pump made of materials has the advantages of wide range of corrosion resistance, convenient maintenance operation and the like. Industry personnel to master corrosion-resistant magnetic pump installation points and antifreeze is necessary. Further reading: industry leaders IFAT China Guangzhou Exhibition building water pump manufacturers ranking article belongs to Internet industry (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor: gogoing (QQ / WeChat:) Starting: http://beng.liuti.cn/ (Service Hotline:)

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