What is a good material for half of the gaskets in a liquid ring vacuum pump unit?
Thread Content
What type of gasket is generally suitable for liquid ring vacuum pump units? Metal wound gaskets can only be used once; the gas being drawn in is at room temperature and contains a small amount of hydrogen sulfide, an acidic substance.
Four-fluoride gaskets or gaskets coated with fluororubber can be considered.
How about metal wound gaskets? Is it versatile in use, and what is its price compared to others?
Article 4 of 3.0.2 on page 225 of HG20592-2009: \"Polytetrafluoroethylene-coated gaskets shall not be used in vacuum environments or in situations where the material of their backing layer is susceptible to corrosion by media.\"”