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1. According to the arrangement of the device, terrain conditions, water level conditions, and operating conditions, determine the choice of horizontal, vertical and other types (pipeline, submersible, submerged, non-blocking, etc.) pumps.
2. Determine the clean water pump, hot water pump, oil pump, chemical pump or corrosion-resistant pump or impurity pump according to the nature of the liquid medium, or use a non-clogging pump.
The pump installed in the safeguard area shall adopt the corresponding explosion-proof motor according to the explosion area grade.
3. According to the size of the flow, determine whether to choose a single-suction pump or a double-suction pump; according to the height of the head, if the single-stage pump and multi-stage pump can be used, the single-stage pump should be selected first.
4. Determine the specific model of the gear pump
After determining what series of pumps to choose, you can press the maximum flow rate (when there is no maximum flow rate, usually 1.1 times the normal flow rate as the maximum flow rate), and take the two performances of the head after magnifying 5%-10% of the margin For the main parameters, determine the specific model on the type spectrum or series characteristic curve.
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