What Performance Requirements Should Rubber Seals Meet?

Rubber seals are basic components made of various rubber materials that play an important role in the sealing process. Sealing is an important performance that some machinery must have, so the requirements for the materials used to make seals are also very high. The following is Take you to see the performance requirements of the materials used in specific rubber seals:

1. Physical properties
Seals are generally divided into two forms: static seals and dynamic seals. A typical example of static seals is pipeline seals. After the pipeline is installed, the rise and fall of the pipeline will cause slow movement between the rubber seal (ring) and the interface. When the rubber is in a state of static compression. Because most of the pipelines are buried underground, some external factors such as temperature, ultraviolet rays, and oxidation basically have no effect on the aging of the seals. At this time, the compressibility of the rubber material is required to be high, and other requirements can be lowered; The rubber seals used in the dynamic sealing process should have different physical properties. The representative of the dynamic seal is the valve seal. In this sealing process, in addition to the force of the rubber, the surrounding environmental factors are complex, so the rubber seals are here. During the process, it is easy to reduce the resilience due to excessive extrusion or cause seal leakage due to wear. Therefore, in this process, we must put forward different physical performance requirements for the materials used according to the different parts of the seal used in the valve sealing process, and effectively solve the deformation of the rubber seal due to long-term use and the reduction of the sealing effect. question.

2. Hygienic performance
Rubber products are basically covered with a layer of rubber material on the outer surface. The appearance is basically the same, but the inner quality will be greatly different. In the process of using rubber seals to strengthen the sealing performance of some products, we must avoid the pollution of sealing rubber , Therefore, in terms of the requirements for the materials used, non-toxic materials must be used and recycled rubber is strictly prohibited, and the seals suitable for water dispensers and other products must pass GB/T17219-1998 "Drinking Water Transmission and Distribution Equipment and Safety Evaluation Standard for Protective Materials" or non-toxicity test of BS6920:2000 "Applicability of Non-metallic Products to Water Quality Test for Contact with Human Body".

There are various types of seals. When using different products, we need to use different seals. Most of the time, we look at the specifications and sizes of the seals. Whether the material used has the performance we need determines whether to use this rubber sealing product.

Cixi Changhe Xinqide Seals Factory is a wholesale rubber O-ring seals manufacturer and custom bulk rubber ring factory in China, providing custom special rubber seals for sale, welcome to consult.