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<p>The following basic data should be understood when selecting or ordering<a href="https://www.jdoseal.com/jdseal-dn40dn50dn100-silicone-rubber-ptfe-the-flange-gasket" rel="noopener noreferrer" target="_blank"> flange ring gasket</a>:</p><p>1. The type and size of the sealing surface of the matching flange;</p><p>2. Nominal diameter of flange and gasket;</p><p>3. The nominal pressure of flanges and gaskets;</p><p>4. The temperature of the fluid medium;</p><p>5. The nature of the fluid medium.</p><p>The following factors should also be considered when selecting flange ring gaskets:</p><p>1. It has good compression and resilience performance, and can adapt to temperature and pressure fluctuations;</p><p>2. It has good plasticity and can fit well with the flange sealing surface;</p><p>3. For certain metal flanges with stress corrosion cracking tendency (such as austenitic stainless acid-resistant steel) flanges, it should be ensured that the gasket material does not contain excessive impurities that cause various corrosion. For example, control the chloride ion content of the gasket to Flange corrosion;</p><p>4. Does not pollute the medium;</p><p>5. For sealing highly toxic chemicals, gaskets are required to have greater safety; for piping systems that transport flammable liquids, the maximum operating pressure and maximum operating temperature of the gasket used on the flange are required to be within the limited range ；</p><p>6. Not easy to harden at low temperature, small shrinkage, not easy to soften at high temperature, good creep resistance;</p><p>7. Good processing performance, easy installation and pressing;</p><p>8. The flange sealing surface is not bonded, so it is easy to disassemble.</p><p><br></p>
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