GATE VALVES have been well known and used for a number of years employing a variety of constructions. Such valves normally include a valve body with a flow passage therethrough, spaced annular seating members in the body and plate members forming a gate with a surface for blocking flow through the body and with an opening for aligning with a flow passage in the body.Gate Valves Also such constructions have included a sealant arrangement for supplying sealant to the face of the gate member to attain sealing between the gate member and the annular seating members.

Normally when the gate is removed from the body of prior art constructions, it tends to fly apart due to the fact that the plate member comprises two plates which are urged apart by spring members positioned therebetween. This is disadvantageous in that the springs and other parts may thus become misplaced or time is required to recover them after they have become separated from the gate member. The present invention is directed to a gate valve including a gate member formed of a pair of plates which are secured together to accommodate relative movement of the plates toward and away from each other, with spring means to tend to urge the plate members apart. Thus, the gate member is urged into frictional engagement with the annular seating members, and yet when it is removed from the gate, it can be removed in one piece and thereafter taken apart in a manner which tends to reduce losing of the springs between the place when they are removed such as in prior art arrangements.

Still another object of the present invention is to provide a gate valve construction wherein spaced annular seating members are provided in a valve body with a flow passage therethrough, the annular seating members having an annular surface for receiving a gate member between the opposed surfaces of the annular seating members. The annular surface of each member includes a teflon seal ring, and an annular groove that communicates with a sealant conducting passage for supplying sealant to the annular groove.Cast Gate, Globe, Check Valves

Yet a further object of the invention is to provide a gate valve construction wherein spaced annular seating members are provided in a valve body with a flow passage therethrough, the annular seating members having an annular surface for receiving a gate member between the opposed surfaces of the annular seating members. The annular surface of each member includes a teflon seal ring, and an annular groove that communicates with a sealant conducting passage for supplying sealant to the annular groove. A cylindrical member is rotatably carried by the upper end of the gate member and is threadedly connected with a stem that is rotatably supported in the body so that upon rotation of the stem the gate can be moved vertically for either blocking the flow through the valve body or for accommodating flow through the valve body. Each of the spaced annular seating members includes projecting spaced vertical guide surfaces for abutting the edges of the gate member to align it as it reciprocates within the valve body.

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