Zhejiang Petrochemical Valve Co., Ltd.

Liaoyong Gu

Huaimin Wu

Jingpan Su

Chengshuai Yang

Xiheng Zhang

Hongquan Xue

Sunli Zhang

Longjie Yang

Hongqiang Yin

Jia Zhao

A high-temperature quick-opening spherical sealing shut-off valve that includes a valve body, a valve seat, a valve cover, a valve clack, a valve rod, and a driving device for driving the valve rod to rotate. A friction-adjusting mechanism is mounted on the valve rod. The valve rod is arranged coaxially and connected to the valve clack. A gas outlet passage is formed in the valve body and the valve cover. The valve clack and valve seat are located in the path of the gas outlet passage. The valve seat is mounted in the valve body and has a first through hole communicating with the gas outlet passage. The valve clack has a second through hole corresponding to the first through hole. The gas outlet passage has three states: open when the first hole fully overlaps the second hole, half-open when the holes partially overlap, and closed when no overlap.

High-temperature quick-opening spherical sealing shut-off valve

Growing community of inventors

Wenzhou, China

Liaoyong Gu