In a gate valve construction a valve body having end walls with aligned openings forming fluid flow passages, a valve gate disposed within the body and movable between full open and closed positions relative to the flow passages, annular sealing assemblies surrounding the flow passages and serving to establish seals between the body and the side surfaces of the gate, Gate Valveseach of said sealing assemblies including a metal seat ring and spring means for urging the seat ring toward the gate, the gate being dimensioned whereby when in full open position it engages only a minor portion of each of the seat rings, means at the upper part of the body for operating the gate and spreader means interposed between the lower portions of the seat rings for both open and closed positions of the gate,GATE VALVES said spreader means serving to maintain a desired predetermined spacing between the lower portions of the seat rings when the gate is moved to its open position, said spreader means consisting of a single spreader member and yieldable means normally positioning the spreader member between the lower portions of the seat rings to directly engage said seat rings radially inwardly of the outer circumferences thereof,Resilient Seated Gate Valves said spreader member being movable downwardly against the urge of said yieldable means to an out of the way position.

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