| 摘要 |
PROBLEM TO BE SOLVED: To make water adherent to a filter removed easily and a surface treatment applied easily by installing a ring-shaped gasket main body and a filter fitted integrally to the gasket main body and forming the filter by boring numbers of holes in a disk-shaped metal body. SOLUTION: The gasket filter 41 is composed of a ring-shaped gasket main body 42 and a filter 43 installed integrally with the gasket main body 42. The filter 43 is formed by boring numbers of holes 45 by etching in a part excluding the peripheral part of a thin metal disk 44. A ring-shaped recessed place 46 coaxial with the gasket main body 42 is formed on one end surface of the gasket main body 42, and a filter housing recessed place 47 of a small diameter is formed on the bottom surface of the recessed place 46. Moreover, the recessed place 47 is formed to have a depth equal to the thickness of the filter 43 and a diameter equal to the outside diameter of the filter 43, and the filter 43 is inserted into the recessed place 47 and welded to the gasket main body 42.
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