Then the secondary seal are what kind of sealing material (material) it?

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2016-09-09 17:35:16: 　
Then the secondary seal are what kind of sealing material (material) it?

Secondary seal of the sealing material (material) is the most common kinds of rubber (rubber seal member), PTFE, flexible graphite and metal gasket. According to different operating conditions, use of different seal materials.

Rubber O-ring seal secondary seal material selection requirements:

1. sealing material (material) good flexibility, particularly the requirements of good resilience, permanent deformation should be smaller; 2 erosion from the liquid medium, and in the medium expansion and contraction are not large oh;.. 3 small friction coefficient good abrasion resistance;

4. Use the temperature range to be more widely;

5. so have the appropriate mechanical properties, such as tensile strength and elongation, pressure, etc., under pressure without significant deformation, has excellent tear resistance, abrasion resistance and pressure resistance; 6. ease of processing and to obtain a high accuracy;

7. The anti-corrosion, dissolution, swelling, aging good performance, there should be no pollution and other media.

With between dense material filling coupling having a certain mechanical strength, elasticity, hardness, flexibility and other properties, isolated, cut off the flow path of the liquid fluid; or to increase the resistance of flow, to eliminate the pressure difference between the page; or additional acting element, the leakage flow back into the source chamber.

Then the secondary seal are what kind of sealing material (material) it?

Secondary seal of the sealing material (material) is the most common kinds of rubber (rubber seal member), PTFE, flexible graphite and metal gasket. According to different operating conditions, use of different seal materials.

Rubber O-ring seal secondary seal material selection requirements:

1. sealing material (material) good flexibility, particularly the requirements of good resilience, permanent deformation should be smaller; 2 erosion from the liquid medium, and in the medium expansion and contraction are not large oh;.. 3 small friction coefficient good abrasion resistance;

4. Use the temperature range to be more widely;

5. so have the appropriate mechanical properties, such as tensile strength and elongation, pressure, etc., under pressure without significant deformation, has excellent tear resistance, abrasion resistance and pressure resistance; 6. ease of processing and to obtain a high accuracy;

7. The anti-corrosion, dissolution, swelling, aging good performance, there should be no pollution and other media.

With between dense material filling coupling having a certain mechanical strength, elasticity, hardness, flexibility and other properties, isolated, cut off the flow path of the liquid fluid; or to increase the resistance of flow, to eliminate the pressure difference between the page; or additional acting element, the leakage flow back into the source chamber.
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