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DSA single stage double suction pump
DSA is a BB1 structure. It is an industrial double suction pump developed by our company with advanced technology and excellent hydraulic model.
The pump has the following characteristics:
1. High efficiency: the structure of staggered arrangement of two half impeller blades is adopted, so as to change the blade frequency (the frequency of blades passing through the pump body tongue separation), so as to reduce the liquid flow pulse (about 1 ‰ to 4 ‰ of the head reduction), make the liquid flow more stable, more efficient, less vibration, and more stable and reliable operation.
2. Low NPSH: the shape of the blade inlet edge adopts convex arc optimization design, which increases the flow area of the liquid inlet, reduces the inlet flow rate, and increases the inlet edge pressure, so as to improve the NPSH. The blade head is designed with airfoil streamline, which reduces the impact loss of liquid flow and reduces the vortex. It not only improves the efficiency value of the highest point, but also makes the efficient area wider, the pressure distribution uniform and the cavitation performance better.
3. High reliability: the high lift pump adopts the double volute design, the pump body and the pump cover are set with stiffeners, and the hydrostatic test of the pump casing is strictly in accordance with the hydrostatic test standard in the technical conditions for centrifugal pump class II (GB / t5656). The design of bearing span and short shaft roughening makes the rotor run with small disturbance, stable and reliable. All impellers are subject to 6.3-stage static balance test, and the whole rotor is subject to 2.5-stage dynamic balance test according to ap1610 standard.
The pumps are widely used in desalination, water circulation, refining, water treatment, environmental protection and other industries.
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