A double suction pump is a horizontal split centrifugal pump, with the core advantages of large flow, high efficiency, and stable operation, suitable for large flow liquid transportation scenarios.
　　Product Core Introduction
　　Structural Features: The pump body is of horizontal split type, with a double suction impeller design, symmetrically inhaling liquid from both ends, and the axial force is offset. The inlet and outlet are on the same side of the pump body, and the pump cover can be directly opened for maintenance without dismantling the pipeline, making maintenance convenient. The flow passage parts are mostly made of cast iron, stainless steel, etc., to meet the needs of different media.
　　Working Principle:The motor drives the impeller to rotate, and the liquid is sucked into the center of the impeller from both sides, and is pressurized by the centrifugal force and discharged from the outlet of the pump body. The double suction structure greatly increases the water delivery capacity per unit time, and at the same time reduces the risk of cavitation.
　　Core Advantages: The flow is much greater than that of a single suction pump, the efficiency is generally between 75%-90%, the operation is stable with low vibration and noise, and the service life is long; it has good cavitation resistance, a wider suction range, and can adapt to complex working conditions.

　　Key Technical Parameters
　　Flow Rate (Q): Core parameter, commonly used unit m3/h, typical range 50-10000m3/h, large double suction pumps can exceed higher flow rates.
　　Head (H): Unit m, range 10-200m, selection based on pipeline resistance and delivery height, some high-pressure types can reach above 300m.
　　Speed (n): Common 1450r/min, 2900r/min (adaptable to asynchronous motor), the higher the speed, the greater the flow rate and head.
　　Power: Motor power range 5.5-1000kW, it is necessary to match according to flow rate, head and medium density, leaving 10%-15% redundancy.
　　Medium Requirements: Adaptable to clear water, sewage, liquids containing a small amount of impurities (such as river water, industrial circulating water), corrosive media need to select stainless steel material.
　　Medium Temperature: Typical - 20℃~120℃, high-temperature types can adapt to media above 200℃ (need special design for seal and material).
　　Inlet and Outlet Diameter: DN80-DN1200mm, it is necessary to be consistent with the specifications of the delivery pipeline to ensure smooth fluid flow.
　　Net Positive Suction Head (NPSH): Typically 2-6m, the lower the value, the stronger the anti- cavitation ability, to avoid blade cavitation damage.

　　Typical Use Cases
　　Hydraulic Engineering: Large flow water transmission scenarios such as river, lake, and sea water intake, urban flood control and drainage, farmland irrigation, reservoir replenishment, etc.
　　Industrial Production: Circulating water transmission in the power industry, cooling and water supply in the metallurgical industry, raw material transportation in the petrochemical industry, slurry transportation (low concentration) in the paper industry.
　　Municipal Water Supply: Urban water intake in waterworks, secondary water supply pressurization, large-scale centralized water supply in industrial parks, new urban areas, etc.
　　Other Scenarios: Tailings transportation in mining ore dressing plants, ship ballast water transportation in ports and wharfs, large central air conditioning circulating water systems.