When selecting the seal and when choosing the rubber material, the need to consider a variety of situations of indicators:

First, consider the conditions of using

1. contacting physical considerations (including liquids, gases, solids, and various chemicals)

2. The temperature range, the minimum and maximum temperature

3. The pressure range

4. Consider the use of static or dynamic

 

Second, the design needs to consider

1. Consider portfolio

2. Consider the use of a chemical reaction process may occur

3. Component lubrication and assembly methods to consider

4. life considerations and may fail to reflect on the reasons

5. consideration of tolerances

 

Third, the test needs to consider

1. The main sealing surfaces set

2. Decides to demand confirmation of the sample

3. Set acceptance criteria

4. Define the testing standards

 

Choose four of the seal material specification

1. Decides that the material specification selection, such as the United States ASTM, the German DIN

2. Use a stable supply of quality suppliers

3. Selection and suppliers to discuss the definition of the rubber material

 

Fifth, cost considerations

Seals cost how to consider it? Companies choose suitable rubber material, not to choose the high cost and do not match the actual material, resulting in the finished product can not use the sealing function, whether natural or artificial, synthetic rubber all have the rubber composition generally can also produce its performance influences.

Now life, with more than ten to twenty or more types of elastic rubber, and a wide range of materials used in a variety of different needs, and at the same time through a professional mixing refinery formulation design, can adapt to a variety of projects as well as the needs of manufacturers, so Designers of O-ring seals and raw material suppliers and to create those materials with each other to discuss the decision is very important.