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Industry news
Selection conditions for O-ring assembly retaining ring
Category：Industry news Source：This station Datetime：2023-09-13 08:56:00 Hits：397
O-ring assembly retaining ring selection conditions
O-ring in the groove under the pressure of the medium, will be deformed, "flow" to the gap position, to achieve the sealing effect. That is to say, with the increase of pressure, the type 0 ring has a greater deformation, its stress also increases, and a tighter seal is obtained. When the O-ring is subjected to high pressure, it will be squeezed into the gap, resulting in seal failure. It is recommended to use high hardness extrusion resistant material of the ring rubber material.
In static seal applications, the groove design can be modified to withstand higher pressures without the use of a stop ring. When designing, we should take care to make the gap as small as possible. The extrusion limit depends on the hardness of the O-ring, the working pressure and the size of the groove clearance. The radial clearance of the O-ring groove must be kept within a certain range of radial clearance. If the tolerance is too large, it will cause the O-ring to extrude from the gap. The allowable radial clearance between sealed elements depends on the system pressure, O-ring section diameter, and O-ring hardness. So a stop ring is recommended.
retainer
The retaining ring is a supplement to extrusion seals (such as O-rings) and is not a seal itself. The purpose of using a stop ring is to reduce the gap on the low pressure side of the O-ring and similar seals, and the structure of the increasing stop ring will withstand much greater pressure than the O-ring alone.
Retaining ring material
The retaining ring materials are mainly NBR, fluororubber and PTFE, according to different use environment, we will recommend different materials for customers to use.
Retaining ring application
When choosing O-rings, we must consider the hardness of rubber. For general use, we usually recommend using a hardness of 70 degrees, because the material can obtain better comprehensive performance at 70 degrees. The use of low hardness O-ring wear resistance and high pressure resistance of the retainer, you can obtain very good sealing performance. The company is committed to continuously improving inventory and developing new products. This solves the problem of long cycle and high price of imported products.
Wuhan Heideparker Seals Co., Ltd. specializes in the production of high-precision seals, for O-ring has a wealth of production experience and product application experience, if you need to consult relevant information, please feel free to contact us 027-88779150!
O-ring in the groove under the pressure of the medium, will be deformed, "flow" to the gap position, to achieve the sealing effect. That is to say, with the increase of pressure, the type 0 ring has a greater deformation, its stress also increases, and a tighter seal is obtained. When the O-ring is subjected to high pressure, it will be squeezed into the gap, resulting in seal failure. It is recommended to use high hardness extrusion resistant material of the ring rubber material.
In static seal applications, the groove design can be modified to withstand higher pressures without the use of a stop ring. When designing, we should take care to make the gap as small as possible. The extrusion limit depends on the hardness of the O-ring, the working pressure and the size of the groove clearance. The radial clearance of the O-ring groove must be kept within a certain range of radial clearance. If the tolerance is too large, it will cause the O-ring to extrude from the gap. The allowable radial clearance between sealed elements depends on the system pressure, O-ring section diameter, and O-ring hardness. So a stop ring is recommended.
retainer
The retaining ring is a supplement to extrusion seals (such as O-rings) and is not a seal itself. The purpose of using a stop ring is to reduce the gap on the low pressure side of the O-ring and similar seals, and the structure of the increasing stop ring will withstand much greater pressure than the O-ring alone.
Retaining ring material
The retaining ring materials are mainly NBR, fluororubber and PTFE, according to different use environment, we will recommend different materials for customers to use.
Retaining ring application
When choosing O-rings, we must consider the hardness of rubber. For general use, we usually recommend using a hardness of 70 degrees, because the material can obtain better comprehensive performance at 70 degrees. The use of low hardness O-ring wear resistance and high pressure resistance of the retainer, you can obtain very good sealing performance. The company is committed to continuously improving inventory and developing new products. This solves the problem of long cycle and high price of imported products.
Wuhan Heideparker Seals Co., Ltd. specializes in the production of high-precision seals, for O-ring has a wealth of production experience and product application experience, if you need to consult relevant information, please feel free to contact us 027-88779150!