About pump shaft seal water RT please explain the function of the shaft seal water and the water quality requirements. Thank you
Mechanical seal ah, that is blocking the water, do not flow from the axis of the surrounding. General water quality is fine. As long as you are not strong acid, strong alkali will doThe pump is to be driven by an electric motor. In that case, be sure to connect to the axis of the motor. It doesn't seal and doesn't flow out of the shaft.
The sewage pump is rubber (O rubber ring, skeleton rubber, oil seal, etc.), the main sealing point is to prevent water penetration into the motor. Some submersible pumps are waterproof motors that allow water to enter the motor.
Therefore, the sealing surface must be in contact with water in order to cool down. Mechanical seal no water flow, and the packing seal must have a certain amount of water outflow, one is cooling, two is lubrication, and three is sealing. The choice of sealing and water quality, Shimizu pumps are generally used in the above two ways
Whether mechanical seal or packing seal, the role of water have one thing in common - cooling, because the sealing surface and shaft are friction, will produce high temperature,