| 摘要 |
An integrated stop valve, comprising a valve body (1), wherein a valve seat (2) is arranged at the center in the valve body (1), the valve seat (2) is provided with a valve clack (3) in a matching manner, the upper end of the valve clack (3) is connected to a valve rod (4), the valve rod (4) is provided with a packing box (5) in a penetrating manner, a cavity fitted with the lower end of the packing box (5) is arranged at the center of the upper side of the valve body (1), the lower end of the packing box (5) is arranged in the cavity arranged at the center of the upper side of the valve body (1) in the matching manner and is in sealing connection with the cavity, packing (6) is arranged in the packing box (5) and is pressed through a packing gland (7), the valve rod above the packing gland (7) is connected to a nut seat (12) in a threaded manner, the nut seat (12) is connected to the valve body (1) through upright posts (13) in a fastening manner, and the upper end of the valve rod (4) is connected to a hand wheel (14). In the stop valve, a valve cover connected to the upper end of a valve body is omitted, and no leakage points exist, thereby increasing the sealing effect. |
