Submersible pump selection


The drainage pumps used in buildings include submersible sewage pumps, submerged drainage pumps, vertical sewage pumps and horizontal sewage pumps.

Method of reducing pump noise


The pump noise is mainly the aerodynamic noise generated by the gas/liquid during the transportation process, the structural noise excited by the vibration of the motor casing, the noise generated by the vibration of the machine base, and the noise of the motor. Such noise level peaks are mainly concentrated in the low octave band, which is in the range of approximately 100-450 Hz.

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