Produced by our factoryDouble suction strong self-priming pump (efficient, energy-saving) can meet the transportation of corrosive liquids and slurries with suspended particles and certain viscosity in the process flow. It is a single-stage double suction cantilever centrifugal pump. This strong self-priming pump is widely used in industries such as petrochemicals, rare earth smelting, electricity, desulfurization and dust removal, and environmental protection.

1Characteristics of Strong Self priming Pump:

1. When starting, there is no need for backflow, vacuum pump, or bottom valve. The pump itself can automatically extract air and liquid.
2. The self-priming height can reach 9m, breaking the limit of the pump's "allowable suction height".
3. The self-priming time is short, ranging from 6.3m3/h to 600 m3/h, with a self-priming time of only 6-50 seconds.
4. The unique suction device maintains an approximate vacuum state between the liquid level and the impeller, improving the efficiency of the pump.
5. During the operation of the pump, even if there is a "water loss" phenomenon, it can automatically extract air through the suction device, achieving the effect of cutting off and restoring at any time.
6. Product materials: A3, HT200, 1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, American standard 316, 316L, Japanese standard SUS304, SUS304L, Monel, Hastelloy, heat-resistant and corrosion-resistant alloy.

The SOW type single-stage double suction centrifugal pump with a split volute shell is a high-performance water pump produced with advanced technology introduced from Germany. By using prototype impellers and modified impellers and their cutting, the pump has a full and wide profile and high efficiency. Within the performance range of the profile, it can provide a pump with any flow head working point that appropriately meets the needs of users. The pump adopts the most excellent hydraulic model that can self balance axial and radial forces at home and abroad, with stable performance, high efficiency, compact structure, low vibration, high pressure resistance of the pump body, and easy installation and maintenance.
Performance and advantages

Compact structure, small footprint, small axial size, low vibration and noise, rotor components, short axial size and good rigidity, pump shaft supported by high-precision bearings.

Application scope
Boosting water supply for water plants, circulating water for air conditioning, fire protection systems, industrial water supply systems, shipbuilding industry, and oil refining industry.

Product Features
1. Built in sealing lubrication structure: The pump has a built-in sealing lubrication structure, and the sealing circulating water provides more direct and effective lubrication and flushing of the pump sealing system.
2. Beautiful appearance: The straight shaped appearance is reinforced with strong ribs on the pump cover, and the built-in sealed lubrication structure makes the overall structure of the pump integrated. The flexible structural design makes the pump more exquisite and generous.
3. High efficiency: CFD computational fluid dynamics is used to analyze and calculate the relationship between pressure distribution and velocity distribution inside the pump, optimize the flow channel design of the pump, ensure that the pump has an efficient hydraulic profile, and improve the efficiency of the pump. The pump body adopts a dual channel design to reduce radial force. The flow parts such as the pump body, pump cover, impeller, etc. are molded with resin sand plates to ensure the appearance, flow channel size, and hydraulic efficiency of the pump. The efficiency of SOW series pumps is 3-5% higher than that of general double suction pumps.
4. High balance accuracy: The dynamic balance accuracy of the rotor components is G1.0 level.
5. Shaft: The shaft is short and has good rigidity. Increasing the shaft diameter can extend the service life of bearings and mechanical seals. The shaft is a fully sealed structure, ensuring no contact with the medium, no corrosion, and a long service life.
6. Double volute shell: The high lift pump adopts a double volute shell structure, which reduces radial force

Model Meaning

Technical Parameter
Flow rate: 50-15000m3/h
Lift: 8-200m
Speed: 730-2900r/min
Caliber: Φ 80- Φ 1000
Motor power: 4-2500kW
Voltage: 380V, 660V, 6kV, 10kV
Temperature range: ≤ 105 ℃
Work pressure: ≤ 2.5MPa

Main component materials of SOW open volute double suction centrifugal pump

Performance parameters of SOW open volute double suction centrifugal pump