| 摘要 |
A flow control valve is provided to miniaturize a size and to improve stability of a flow rate. A flow control valve comprises a valve body(11) made of resin including a first passage(13) formed in the valve body and a valve port(13a) communicating with the first passage and a valve seat(15) formed around the valve port and a valve chamber(16) formed around the valve seat and a second passage(14) communicating with the valve chamber, a valve element(12) connected with and spaced from the valve seat and a flow adjustment rod for adjusting a flow rate of a fluid flowed in the valve chamber, wherein the flow adjustment rod is adjustable in position to change an opening degree of the valve element for adjusting the flow rate, and the flow control valve further comprises an annular recess formed in an inner periphery of the valve seat for preventing the valve port from being deformed in radial direction when the valve element is connected with the valve seat.
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