Patent ID: 9091352
Filing Date: 2015-07-28
Classification: F16K

Abstract:
1. A flow path opening/closing valve comprising: a valve body having a through hole therein; a main body having a fluid inlet port and provided with a valve chamber accommodating the valve body rotatably therein; a stopper having a fluid outlet port communicating with the fluid inlet port and which is secured to the main body; a handle that rotates the valve body inside the valve chamber for blocking communication between the fluid inlet port and the fluid outlet port; a guide member that projects from the handle toward the main body, when the handle is attached to the main body; and a sleeve disposed in the interior of the main body and which slides against the valve body and is provided with a through hole therein that establishes communication between the fluid inlet port and the fluid outlet port, wherein a first annular groove is provided in a surface of the sleeve that faces toward the valve body, and a first seat member that slides against the valve body is arranged in the first annular groove, wherein a second annular groove is formed in the main body and confronts the first annular groove of the sleeve, a second seat member confronting the first seat member is provided in the second annular groove, the second seat member sliding against the valve body, and wherein multiple cutouts are provided on a side of the fluid outlet port of the stopper, whereas small projections are provided on the handle at a predetermined distance on each side of the guide member at positions corresponding to the positions of the multiple cutouts, the stopper being attachable and detachable with respect to the main body by engagement of the small projections in the cutouts.