How To Choose Liquid O-Ring Material Correctly?

Several important parameters should be considered when choosing the material of liquid o-ring correctly.

First, the use of liquid o-ring material conditions

1. Objects to be touched, including liquids, gases, solids and various chemical agents.

2. Temperature range, minimum and maximum.

3. The pressure range, the lowest compression ratio of the seal under pressure.

4. Considerations for static or dynamic use.

Second, Design requirements of liquid o-ring structure

1. Portfolio considerations.

2. Consideration of possible chemical reactions in use.

3. Consideration of service life and review of possible causes of failure.

4. Assembly Lubrication and assembly method.

5. Tolerance considerations.

Third, Requirements for testing liquid o-rings

1. Define the test criteria.

2. Determine the need for sample validation.

3. Primary Sealing surface setting.

Fourth, Selection of material specification for liquid o-ring

1. Decide on material specifications, such as ASTM, Din, Jis, GB, etc. .

2. Discuss with supplier and define the selection of rubber material.

3. Choose stable quality suppliers.

Fifth, Cost considerations for liquid o-ring materials

The selection of suitable liquid o-ring materials, the selection of high-cost and impractical rubber, resulting in the finished product can not be issued seal function, whether natural or synthetic rubber has the general rubber characteristics, for example, after compression, elastic resilience, flexure resistance, but each type of rubber elastomer has its unique properties, and through the composition of the rubber formula can also affect its performance. At present, there are more than 20 kinds of rubber elastomers, and they are widely used in all kinds of materials. At the same time, with the formulation design and mixing of a professional mixing plant, they can meet all engineering requirements, vulcanization transforms the rubber from a thermoplastic mixture into a thermosetting desired shape, so it is important that the designers of the liquid o-ring discuss with the builders and the suppliers of the liquid o-ring materials.