The performance of rubber seals is crucial for the proper functioning of various systems and equipment. To ensure their reliability and durability, a series of performance tests are conducted. These tests simulate the actual operating conditions that the seals will encounter in different applications.
Fluid Leakage Tests: One of the most important performance tests for rubber seals is the fluid leakage test. This test is designed to determine the ability of the seal to prevent the passage of fluids. In a laboratory setting, the seal is installed in a test fixture that mimics the actual application conditions, such as the mating surfaces and the pressure of the fluid. The test fluid, which can be water, oil, or a specific chemical depending on the application, is then introduced into the system under a controlled pressure. The amount of fluid leakage, if any, is measured over a specific period. For example, in the testing of a fuel system seal, the seal is subjected to the pressure of the fuel and the presence of any fuel leakage is detected using sensitive sensors or by visual inspection. A low - leakage rate is essential for seals in applications where fluid containment is critical, such as in hydraulic systems or chemical processing plants.
Gas Leakage Tests: In applications where the seal is used to contain gases, gas leakage tests are performed. These tests are similar to fluid leakage tests but use gases such as air, nitrogen, or other process gases. The gas is introduced into the test chamber at a specified pressure, and the leakage rate is measured. In the aerospace industry, for example, gas leakage tests are carried out on engine seals to ensure that there is no leakage of high - pressure gases, which could lead to performance degradation or safety hazards.
