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Help Centermy Dream Qxf Submersible Sewage Pump for Fields
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Tianye brand QWB series submersible sewage pumps are suitable for industries such as chemical, petroleum, pharmaceutical, mining, paper industry, cement plants, steel mills, power plants, coal processing industry, as well as the drainage systems of urban sewage treatment plants, municipal engineering, construction sites, etc. They can convey sewage and dirt with particles, and can also be used to pump clean water and corrosive media.
I. Technical parameters:
Nominal diameter: 50 - 600 mm
Lift: 6 - 80 m
Flow rate: 5 - 6000 m³/h
Power: 1.5 - 400 kW
II. Operating conditions:
1. The temperature of the medium does not exceed 40°C;
2. The pH value of the medium: 6 - 9;
3. The volume ratio of solid substances in the medium is less than 2%;
4. The operating viscosity of the medium is no more than 20x10-6m²/s;
5. The density of the medium is less than 1.2x10³kg/m³.
3. Material selection:
Cast iron, stainless steel, etc.
4. Structural description:
In the QWB series sewage pumps, the motor is located at the upper part of the electric pump, and the insulation class of the motor is Class F. The shaft seal is composed of a rotary seal ring and a double mechanical seal. The rotary seal ring can prevent the intrusion of mud and reduce the direct pressure of the pump on the mechanical seal, serving as the first line of defense for sealing. There are two sets of double mechanical seals. The first set on the pump side is the initial seal for sealing sewage, and the second set on the motor side is the secondary seal for preventing the leakage of lubricating oil. The entire mechanical seal is immersed in No. 20 turbine oil, which plays a role in cooling and lubricating the seal.
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