Pump industry suppliers to tell you: why do pump with multistage pump cycle

why pump usually use multistage pump, circulating pump usually use single pump, this is because the main is determined by the function of the pump and the circulating pump.

pump mainly is the loss of the complement system, so the general flow is small, head is bigger, single-stage pump hydraulic model in the case of small flow a lot of can not meet the requirements of the head, can only use multistage pump. Circulating pump in general are large capacity low head, efficiency of economic operation, and hydraulic model is a single pump is appropriate, especially the single stage double suction pump.

single pump and multistage pump difference: single pump water supply, an impeller, no other brothers and sisters to help; And multistage pump work, there are multiple impeller have brothers and sisters to help for it, so that his work ability is high. Like working with more than one person working alone, do the work is not the same.

the so-called circulating pump is usually used in closed loop system, circulating pump working pump pressure can be created, which is said the water pressure, the pump inlet is in the normal pressure system, outlet in the closed loop system, when the system pressure is zero. 1 mpa, the pump for filling water system needs higher than 0. 1 mpa, the greater the pressure difference of difference and the faster the filling water, on the contrary, the smaller the pressure difference is the slower speed; So the pump to work must export pressure is greater than the system pressure. And water pump usually use multistage pump and circulating pump with single pump usually it is not true, as long as the filling water met the requirement of the pressure difference, multi-stage pump and single stage pump has no effect.

water pump industry suppliers is the collection scientific research, design, production, management, services for the integration of production enterprises, the products are widely used in petroleum, chemical industry, metallurgy, electric power, mining, coking, medicine, printing and dyeing, food, paper making, environmental protection and other fields. The company has a modern pump performance testing means, equipment is excellent. Main production ZA, ZAO, ZE petrochemical pump, multi-stage pump CZ chemical process pump, IH chemical pump, forced circulation pump, SPP chemical mixed-flow pump of 28 kinds of material, 30 series more than 1000 specifications special alloy chemical pumps, valves, stainless steel pipe, fluorine pipe parts.