Abstract: An improved gate valve is provided having improved operating characteristics. Bore pressure in the body cavity of the valve in the open or closed position is isolated. In the closed position a double metal sealing barrier is provided across the gate and in the open position the pressure is isolated from the stem packing and bonnet gasket by the seats on either side of the gate. Formation of hydrates in the body cavity is eliminated and better retention of the body grease is achieved during flow through the valves. Metal-to-metal seal surfaces are developed thereby eliminating wear on the non-metal components and reducing torque requirements.