초록 ▼

A pair of opposed valve members defines a radial flow path therebetween which extends from the outer radial peripheries of each valve member to an axial bore formed in one of the valve members. The other valve member is mounted on a stem having an upper end which is urged upwardly by a spring dispos

A pair of opposed valve members defines a radial flow path therebetween which extends from the outer radial peripheries of each valve member to an axial bore formed in one of the valve members. The other valve member is mounted on a stem having an upper end which is urged upwardly by a spring disposed around the stem. A substantially cylindrical element is threadably engaged in the upper end of a valve body in which the valve members are received and the stem is urged thereagainst. In another embodiment, the stem is fixedly connected to the cylindrical element. Rotational movement of the cylindrical element axially moves the stem thereby controlling flow through the valve.

대표청구항 ▼

A flow control valve comprising: a housing; a first valve member mounted on said housing and having a working face formed thereon; a bore formed in said housing, said bore being in communication with said first valve member working face; a second valve member received in said bore and having a first

A flow control valve comprising: a housing; a first valve member mounted on said housing and having a working face formed thereon; a bore formed in said housing, said bore being in communication with said first valve member working face; a second valve member received in said bore and having a first side directed toward said first valve member and a second side opposite thereto, said first side having a working face formed thereon; a shaft substantially coaxially received in said bore, said shaft being connected to said second side of said second valve member; inlet means formed in said housing for permitting a flow of fluid to fluid to a location adjacent the outer peripheries of said working faces; one of said valve members having an orifice extending thereinto from its working face, said faces being engageable with each other near the orifice to prevent fluid flow through the orifice; outlet means coupled with said housing for permitting a flow of fluid out of said orifice; means for substantially balancing the upward and downward pressures applied to said shaft when said valve is in operative condition; and means for sealing between the radially outer surface of said shaft and the radially inner surface of said bore, said sealing means comprising a substantially planar disk coaxial with said bore and having a central bore therethrough for receiving said shaft.