How do chemical pumps achieve high sealing conditions

How do chemical pumps achieve high sealing conditions? Chemical pump uses: chemical pumps are widely used in chemicals, petroleum, metallurgy, light industry, synthetic fibers, environmental protection, food, medicine, etc., in order to improve product quality, reduce running, spilling, dripping, and leakage. Prevent pollution and improve the environment, which has a great effect. How does its mechanical seal achieve high sealing conditions? This question can be explained by the mechanical seal from the following two aspects. 1. Sealing method For static sealing, there are generally only two methods: gasket and sealing ring, and the sealing ring is the most widely used o-ring; for dynamic sealing, chemical pumps rarely use packing seals, mainly mechanical seals , Mechanical seals are divided into single end face and double end face, balanced type and unbalanced type. The balanced type is suitable for the sealing of high pressure medium of mechanical shaft seal (generally refers to the pressure greater than 1.0mpa). The double end face machine seal is mainly used for high temperature and easy For crystalline, viscous, particle-containing, and toxic transpired media, the double-end machine seal should write isolation fluid into the sealed cavity, and its pressure is generally higher than the media pressure by 0.07~0.1mpa. 2. Sealing material Chemical pump static sealing material is general Fluorine rubber is used, and PTFE material is used under special circumstances; the material and equipment of the mechanical seal dynamic ring is more critical. It is not that cemented carbide is the best for cemented carbide. The high price is one aspect, and there is no difference in hardness between the two. Reasonable, so it is best to treat them differently according to the characteristics of the medium. Keywords: mechanical seals, mechanical seals, mechanical shaft seals