The significance of sealing ring to mechanical seal for pump

Summary】：The general name of the dynamic ring and static ring is called sealing ring, is the main component of the mechanical seal for pumps. Seal ring to a large extent determines the performance and life of the pump mechanical seal, so the pump mechanical seal has some specific requirements for the seal ring. The general name of dynamic ring and static ring is called sealing ring, which is the main component of mechanical seal for pump. The seal ring largely determines the performance and life of the pump mechanical seal, so the pump mechanical seal has some specific requirements for the seal ring.

First, the seal ring should be easy to process and manufacture
Second, installation and maintenance should be easy and inexpensive.
Third, the seal ring should have good heat shock resistance, so the material should have a high thermal conductivity and a small coefficient of linear expansion, not to crack when bearing thermal shock.
Fourth, the seal ring should have good self-lubrication, to prevent the work of a short period of dry friction, not to damage the sealing end face. Therefore, the sealing ring material and sealing fluid should also have a good wettability.
V. Simple structure
Seal ring structure is simple and symmetrical, giving priority to the use of integral structure, can also use a combination of seal ring, try to avoid the use of sealing end spray type structure.
Sixth, there is sufficient strength and rigidity Pump mechanical seal in working conditions without damage, deformation should be as small as possible, working conditions fluctuations can still maintain the seal. In particular, the seal end face should have sufficient strength and certain corrosion resistance to ensure the service life of the product.