● a certain amount of plasticity, under the action of compression force can produce a certain radial force and close contact with the stem.
● sufficient chemical stability.It does not contaminate the medium, the filler is not inflated by the medium, the dipping agent in the filler is not dissolved by the medium, and the packing itself does not corrodes the sealing surface.
● good self-lubrication performance, wear resistance, friction coefficient is small.
● when a small amount of eccentric stem, packing should be enough to float elastic.
● simple manufacturing, convenient loading.
