一、Features: 
1. Adopt symmetrical double-flow impeller with high head, stable operation, low vibration and noise, and operate at an appropriate speed, so that the pump can adapt to a wider range.
2. Use excellent hydraulic model, making the efficiency of pump is 2-3% higher than that of the same type of pump, which greatly reduces the operation cost of pump.
3. Imported bearings are used, the parts and materials can be selected according to users' application requirements, so that the pump can adapt to various field operating conditions; The suction pipe and the lower part of the pump body are cast together, it is convenient to check the rotor parts of the pump without removing the pipe and motor which greatly reduces the maintenance cost.
4. Water pump adopt intermediate support, thickening of the pump body, sealing, cooling, thin oil lubrication bearing, etc., make the pump can be applied to 80 ℃ within the scope of various operation occasion.
二、Model Description: 

12SH-19A

12 - pump suction inlet diameter is divided by 25 (i.e. diameter of 300mm)

SH - single - stage double - suction centrifugal pump

19 - the specific speed is divided by 10

A - pump impeller outside diameter first cut

三、Spectrogram: 

四、Application field: 
Power industry: factory water supply

Coal industry: mine drainage

Paper industry: factory water supply

Iron and steel metallurgy: water supply and drainage system

Urban water supply and drainage: domestic water supply, water plant industrial water supply

Irrigation: irrigation

Cigarette industry: factory water supply system