Seal Kit for Grundfos

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Grundfos Mechanical Seal Replacement

Materials:

● Seal Rings: Resin Carbon, Antimony Carbon, SIC, SSIC, Tungsten Carbide

● Elastomer: VITON, EPDM, NBR

● Metal Part: SS304, SS316

Assembly Dwg:

Dimensions (mm):

*Related Introduction*

Leakage problems existing in the use of sewage pumps

(1) The pressure generated by the sealing fluid medium of the sewage pump is much greater than that of the isolation fluid. However, in the design of the sewage pump, the pressure of the isolation fluid of the sewage pump must be controlled at about 0.15KPa, and the pressure of the isolation fluid must be controlled. It must be greater than the pressure of the sealing medium of the sewage pump, otherwise, the medium containing a large amount of toxic substances will leak out of the sewage pump, causing environmental pollution. However, after the sewage pump is put into use, the pressure of the isolation fluid is much less than 0.15KPa, while the sealing fluid medium is increasing. Generally, the sealing fluid medium is greater than 0.55KPa, which results in a large amount of toxic medium from the sewage. Seepage from the pump.

(2) The medium used by the sewage pump to transport contains a large amount of solid matter. In its daily work, the sewage pump stores a large amount of toxic water or substances in the sewage tank, and then transports a large amount of sewage and pollutants to The sewage purification station carries out treatment, but the sewage in the sewage pump contains a large amount of solid toxic substances. These solid substances are easy to enter the sewage pump pipeline, causing the pipeline to be blocked. At the same time, these solid pollutants have strong friction. Due to the force, the pipeline of the sewage pump is worn out, and the sealing equipment is worn out by a large amount of solid materials, resulting in a decrease in the sealing effect. When the pressure of the isolation fluid is too small, it cannot work normally, and the pressure of the sealing fluid medium is increasing at the same time, and a large amount of solid toxic substances stay on the end surface of the sewage pump, causing the leakage of the sewage pump.

(3) The sewage pump is continuously started and stopped. When the sewage in the sewage pump is cleaned up, the sewage pump will stop running. When the sewage in the sewage pump is about to be full, the sewage pump will start to run. The frequency of opening and closing of the pump is too large, which causes the sewage pump to receive force between the start and stop, causing serious damage and causing the sewage pump to leak.

(4) The sewage in the sewage pump is prone to emptying problems. The sewage pump is opened and stopped frequently. When the water in the sewage pump is about to be pumped out, the sewage pump still does not stop pumping, which leads to the phenomenon of sewage pump emptying. When the water in the sewage pump has been pumped away, but the sewage pump still does not stop running, a lot of noise and vibration will be generated, making the sewage pump work in an extremely unstable environment, resulting in leakage of the sewage pump .

We continue to improve our research and development technology, and achieve the goal of improving the quality of Seal Kit for Grundfos and production efficiency. We strive to catch up with the world's advanced level, make full use of advanced technology and equipment, and build excellent enterprises. Our company has always been to carry forward the industry as the mission, forge ahead, and constantly develop and innovate.