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ISG series single-stage single-suction vertical pipeline centrifugal pump, is our selection of excellent domestic hydraulic model, using IS centrifugal pump performance parameters, based on the general vertical pump cleverly designed from the combination of temperature, Medium derived from different heat pump, high temperature corrosion-resistant chemical pumps and pumps. The series of products with high efficiency, low noise, reliable performance, etc., in line with the latest national Ministry of Machinery JB / T53058-93 standards, products according to the international ISO2858 standard design and manufacturing. Many customers choose ISG pipeline air conditioning circulating pump, the flow rate is often small, and then cause the current flow, can not be used, or ISG pipeline pump noise, for this reason, the user that the pump quality problems. In fact, the answer is of course negative. Most of this is because there is no good style. As for why, let me analyze it. Hope to help the user. Pipeline centrifugal pump flow, head and current the following relationship: current = head * flow First of all, ISG pipeline pump head height is determined by the energy loss of water pipes and valves and other decisions, he said the pump can give water energy Of course, the decline in motor speed is also reduced when the centrifugal pump outlet valve is closed, because of the same head, the flow decreases, then the pump current decreases, if the current is the smallest, but slightly greater than idling, because the water has Resistance. Pipeline centrifugal pump current is the smallest, is idle, that is, the pump body is not what water, and the atmosphere is directly connected to the pump idling [of course, submersible pump such a long time will lead to overheating damage, and even ordinary pump This turn is not good. However, when the current of ISG pipeline pump is the maximum, it is when the source of inlet connection, such as water, is imported and the outlet is not limited. For example, it is directly connected with the atmosphere, and even the pipeline is not connected. At this time, the maximum flow rate and the maximum pump current will be achieved. However, the general manufacturers of pumps, matching motors are calculated according to the rated flow, like this when there is no limit may lead to motor overload burned, but the manufacturers are not the same, they are usually in accordance with the maximum limit of match Motor, even without such restrictions, the maximum efficiency is not high, but the pump will not be damaged.
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