There are thousands of fluids, and the corrosiveness, oxidation, and permeability of various fluids vary greatly. Materials must be selected according to these characteristics. In addition, the cleaning of the system must also be taken into account to prevent the attack of the gasket by the cleaning fluid. Flexible graphite layer materials should meet the requirements of JB/T 7758.2.

Among them, the chloride ion content should be less than or equal to 50*10-6. RSB is commonly used as a material for sealing gaskets as a type of flat gasket material. It can be made into a variety of circular geometric gaskets and is widely used in pipelines, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust pipes, chillers, etc.

The vending machine shipping gearbox washer is a loophole (usually in the middle) of a thin plate (usually round) that is usually used to distribute the load thread fastener. Other uses are as spacers, springs (Belleville gaskets, wave gaskets), the sheets must be filled with irregular flange sealing surfaces, thicker gaskets have good compressibility, and have a certain adaptability to the sealing surface that is not damaged or bent. Therefore, the minimum thickness of the gasket depends on the surface roughness of the flange, the compressibility of the gasket, the stress of the gasket, the degree of deflection of the flange, etc.