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How to select suitable phe gaskets for working conditions?
Jan 03, 2019

1.

The gasket material shall be selected according to the process use, and the supplier shall provide details of the gasket material and its operation restrictions, including the expected service life of the gasket;

2.

For the conditions that may lead to gasket swelling (for example, the medium is hydrocarbons), in order to facilitate maintenance, adhesive gasket should be preferred;

3.

If the supplier lacks experience in the use of gaskets in a particular condition, the gaskets shall be soaked to determine their swelling, hardness, and susceptibility to chemical erosion.The immersion test shall be carried out at the operating temperature with a section of the gasket with a maximum thickness of 8mm.The experiment lasted at least 15 days.The hardness change of fluorine rubber should not exceed 15IRHD;Other rubber shall not exceed 10IRHD.Volume variation shall not be greater than 15%;

 

4.

If the supplier lacks the experience of using the adhesive in a certain working condition, the adhesive shall be used for immersion test after bonding to determine its bonding strength and sensitivity to chemical erosion.The immersion test shall be carried out at the operating temperature with a length of 100mm of the gasket.The test period should be at least 15 days.One half of the length of the test gasket (50mm) shall be pasted to the bonding surface corresponding to the state of the


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