AFSLUITER, IN HET BIJZONDER REGELAFSLUITER, VOOR BUISLEIDINGEN.

摘要

A valve in which the movable valve member, e.g. a ball or slider, has at least one valve seat braced thereagainst and is composed of an engineering ceramic which differs from the engineering ceramic of the valve seat with the two ceramics being paired to reduce adhesion between them. One of the ceramics can be an oxide ceramic while the other is a nitride or carbide ceramic or one can be a nitride ceramic while the other is a carbide ceramic.