This series of fan-shaped spectacle valves, also known as blind valves, flap valves, and fan-shaped valves, is a reliable device for cutting off gas media required by GB6222 "Gas Safety Regulations for Industrial Enterprises".
Compared with other valve equipment used for cutting off in pipelines, this series of fan-shaped glasses valves has the characteristics of novel structure, light weight, small size, convenient operation, rapid action, and reliable performance of cutting off gas.