Patent ID: 8474791

Claim:
A gate valve equipped with a valve box, a valve disk displaceable for being seated on a valve seat formed in the valve box, a valve rod connected to the valve disk for moving the valve disk along a straight line as well as tiltably moving the valve disk, and a driving section disposed in a housing connected to the valve box for linearly displacing the valve rod in an axial direction, the gate valve comprising: a yoke connected to a drive shaft of the driving section and which is displaced along the axial direction under a driving action of the driving section; a displacement member displaced integrally with the yoke, and which is tiltable at a terminal position along the axial direction; an engagement member disposed on a side of the displacement member and having a hole therein into which a first roller mounted on the displacement member is inserted; a frame disposed parallel to the axial direction of the valve rod and having a groove that extends along the axial direction; a second roller disposed on the engagement member and which is inserted into the groove; and a pressure receiving member disposed to face toward the groove and which abuts against the second roller in a valve closed state in which the valve disk is seated on the valve seat, wherein the valve rod, the displacement member and the driving section are arranged in parallel in interior of the housing, and the pressure receiving member is formed from a material having a hardness greater than that of the frame.