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Model QWB Series -Sewage Submersible Pump
Ganquan brand QWB series submersible sewage pump is suitable for chemical, petroleum, pharmaceutical, mining, paper industry, cement plants, steel mills, power plants, coal processing industries, as well as urban sewage treatment plant drainage systems, municipal engineering, construction sites and other industries conveyor belts. Granular sewage and dirt can also be used to pump clean water and corrosive media.
First, technical parameters:
Nominal caliber: 50-600 mm
Head: 6-80 meters
Flow rate: 5-6000 cubic meters / hour
Power: 1.5-400 kW
Second, the conditions of use:
1. The temperature of the medium does not exceed 40 ° C;
2. Medium pH (pH): 6-9;
3. The volume ratio of the solid matter in the medium is below 2%;
4. The running viscosity of the medium is not more than 20x10-6m2/s;
5. The density of the medium is less than 1.2x103kg/m3.
Third, the material selection:
Cast iron, stainless steel, etc.
Fourth, the structure description:
The QWB series sewage pump motor is located in the upper part of the electric pump, and the insulation level of the motor is F grade. The shaft seal is a combination of a rotary seal ring and a double-end mechanical seal. The rotary seal ring can prevent the intrusion of mud and reduce the pump pressure directly on the mechanical seal, which plays the role of the first seal line. The seal is in two groups. The first group is the initial seal on the pump side for sealing the sewage, and the second group is the secondary seal on the motor side for leak sealing of the lubricating oil. The complete mechanical seal is immersed in the No. 20 turbine oil. Cooling and lubrication to the seal.