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Classification and use of chemical pumps
Chemical pumps are widely used in industrial and municipal water supply and drainage, as well as in farmland and orchard irrigation and drainage, to transport clean water or other liquids with similar physical and chemical properties.
05
2025.08
Requirements for starting and stopping sealless self-priming pumps
Before installing a sealless self-priming pump, check for loose fasteners and foreign objects blocking the pump flow path to prevent damage to the impeller and pump body during operation. During installation, avoid adding weight to the pump pipes to prevent deformation. Tighten the anchor bolts during installation to prevent excessive vibration during startup, which could affect the pump's performance. For ease of maintenance and safety, install a regulating valve on each pump's inlet and outlet pipes and a pressure gauge at the pump outlet to ensure operation within the specified head and flow range, extending the pump's lifespan. After installation, rotate the pump shaft. The impeller should not rub or seize. If not, disassemble the pump and investigate the cause.
03
2025.08
Common usage problems of stainless steel self-priming pumps
A stainless steel self-priming pump is not primed with water. This is a common problem. Many people assume that since it's self-priming, it should automatically draw water without priming. This is a mistake. Self-priming pumps pump liquids and cannot create a vacuum. Therefore, priming is essential when the pump is first used without any liquid stored in the pump body. Conversely, if the pump is turned on without priming during initial use, it will not pump liquid. Long-term operation can also cause the pump to dry-run due to idling, burning components such as the seal and impeller.
29
2025.07
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