Patent ID: 9057449
Filing Date: 2015-06-16
Classification: F16K

Abstract:
1. A fluid control valve comprising: a resin valve main body including an inlet port and an outlet port formed in opposite side surfaces of the valve main body, a valve chamber communicating between the inlet port and the outlet port and opening at a center of an upper surface of the valve main body, and a valve seat provided in an inner wall of the valve chamber; a valve element arranged to be moved into or out of contact with the valve seat; and a valve upper body including a drive part to drive the valve element, an inflow passage being formed like an L shape extending through the inner wall to communicate between the inlet port and the valve chamber via the valve seat, wherein the inner wall is shaped in a cylindrical form including a thick-wall portion so that a wall thickness of the inner wall is thicker on the inlet port side than on the outlet port side, the valve main body is provided, at a center of a lower surface, with a resin injected part, an outer wall of the valve chamber is formed, at an upper end, with an annular seal portion to hold a retainer portion of the valve element between the outer wall and a lower end of the valve upper body, and an annular groove is formed around an outer circumference of the seal portion so that the groove is deep on the inlet port side and shallow on the outlet port side.