What are the differences between GB96, GB95, and GB97.1 gaskets? When should a large gasket GB96 be chosen?

GB96, GB95, and GB97.1 are all standard numbers under China’s **GB standards for gaskets; they specify the dimensions and technical requirements for different types and sizes of gaskets. Gaskets are commonly used in bolted connections for sealing and fastening purposes, to ensure the tightness and sealing of the connection. GB96: Refers to large gaskets, which have a larger outer diameter than standard gaskets; they are typically used with large bolts or in applications that require a greater load-bearing area. The choice of the large gasket GB96 is usually made when high load-bearing capacity is required, or when a larger contact area is needed to distribute the pressure. GB95: Usually refers to flat washers, which are the most common type of gasket. They are used to fill the gaps between bolts or nuts and the surfaces being fastened, thereby preventing the bolts or nuts from coming into direct contact with those surfaces and protecting them from damage. At the same time, they help to ensure a more even distribution of pressure on the threads. These types of washers are generally suitable for most standard fastening connections. GB97.1 refers to small gaskets, which usually have a smaller outer diameter than GB95 gaskets. Small shims are mainly used for small bolts or in applications with limited space. When selecting gaskets, it is necessary to consider the dimensions of the bolt connection, load conditions, operating environment, and requirements for sealing performance. When the application requires a larger pressure dispersion area to reduce surface stress, or when the bolt holes are large and a larger area needs to be covered to ensure the sealing and stability of the connection, large gaskets in accordance with GB96 standard may be chosen. .