Stainless steel submersible pump single – ended mechanical seal

Stainless steel submersible pumps are designed with single-ended mechanical seals. It should be noted that there are many parts of mechanical seals, high precision, high installation and removal requirements, the corresponding cost is also higher shortcomings. However, from the actual needs and production point of view, the use of mechanical seal advantages and disadvantages, mechanical seal is the future development trend.
1) The main sealing the original: by the moving ring, static ring, composed. Dynamic ring and static ring are generally made of different materials, a lower hardness, a higher hardness. But two rings may be made of the same material depending on the circumstances.
2) auxiliary seal original: by the dynamic ring seals, static ring seals and other appropriate gasket composition. According to different requirements, auxiliary seal original O-ring, V-ring or other shape of the seal ring. So as to absorb the vibration of the sealing surface has an adverse impact on the auxiliary seal ring of the original commonly used rubber or plastic and other materials.
3) Compression of the original and other auxiliary components: such as springs, push rings, drive blocks, anti-pin, etc., and to ensure that the dynamic ring and static ring work of other parts necessary for this type of original. As the working conditions of mechanical seals are complicated, the frictional heat is generated continuously between the moving ring and the stationary ring sealing surface during operation, which results in vaporization of the liquid film between the moving ring and the stationary ring, aging, coking and deformation of some parts. . Therefore, in the choice of mechanical seal, it must also pay attention to the mechanical seal cooling.