| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceramic valve, by which an excellent sliding characteristic can be stably obtained, and which has such a structure as to hardly cause water leakage. SOLUTION: A ceramic valve 10 is formed by plural ceramic members 11, 12 respectively having sliding contact surfaces 11a, 12a, which come into contact with each other at the respective sliding contact surfaces 11a, 12a. The sliding contact surfaces 11a, 12a are formed by coating the backing surface with a fluororesin in such a manner as to fill up at least the recessed parts of microscopic projecting and recessed parts formed on the backing surface, and the surface roughness of the surface is adjusted to the range of-0.05-0.5μmRa.
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