Gate valve

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.