VALVE DEVICE

摘要

A valve device is equipped with a body, a valve element drive mechanism, and a housing. The body has a tubular insertion section, in which a movable member of the valve element drive mechanism is inserted. A first flange is formed at an end of the insertion section that faces the housing. Furthermore, a ring is fitted externally on an outer side wall of the first flange. By projections, which are provided on an inner side wall of the ring, being embedded in an outer side wall of the insertion section, the ring is made integral with the first flange. The housing is of a bottomed tubular shape that covers the valve element drive mechanism, and an edge of an open end of the housing is crimped to the first flange through the ring.

主权项

1. A valve device comprising:
a body made of resin, the body having a flow path through which a fluid flows; a valve element configured to be seated on or separated away from a valve seat formed in the flow path; a valve element drive mechanism configured to displace the valve element in a direction to be seated on or separated away from the valve seat; and a bottomed tubular shaped housing configured to cover the valve element drive mechanism; wherein: the body has a tubular insertion section, in which a movable member of the valve element drive mechanism is inserted; a flange is formed at an end of the insertion section that faces the housing; a metal ring is fitted externally on an outer side wall of the flange, the metal ring having a projection formed on an inner wall thereof, the projection being embedded in the outer side wall of the flange; and an open end of the housing is fixed to the body by being crimped to the flange through the ring.