Compression Joints

Compression is the key to making gaskets work. The stronger the compression, the better the joint works. Not having enough pressure on the seal causes it to slide or open for contaminants to pass. This is because the gaskets are primarily designed to fit between the mated parts of the machine: it compresses between two objects, fills the tiny spaces in between, and creates a seal that prevents liquids, gases, and dirt from entering the machine components .

The materials that are frequently used in the manufacture of gaskets are the following: paper, silicone, fiberglass, metal, rubber, plastic polymer and felt. Some gaskets even contain asbestos in case your specific application requires it. Because different types of gaskets can be made of different materials, the manufacturing process for each type also differs. Mainly, the processes involve making a cut of the material in its proper shape (the cutting procedure varies depending on the material, of course).

Manufacturers use a hot compression test to determine if a particular gasket can withstand tremendous pressure. This type of test applies to both constant temperature and joint temperature. How does it work? The seal compression set is measured. This determines stress or resistance to creep relaxation and joint reserve. The manufacturer will know if the gasket can withstand the tremendous pressure applied to it Ginseal.

Gaskets have many industrial applications, including compression pressure of up to 2,000 pounds per square inch (and even more). It is generally believed that the stronger the compression load applied to a joint, the longer the joint will last.

When looking for a meeting, your first consideration should be your application. You can check manufacturers' websites and even product packaging to see test results, like the hot compression test.