In light of low productivity and low cost natural gas wellhead, FST developed a simple wellhead safety control system. This system is a small hydraulic control system with the basic functions of control panel. It integrates hydraulic system and intercepting valve actuator, which makes it easy to install. The system uses hand pump to provide power source.

The control object of emergency intercepting system is one valve, it has the functions of local shutdown, remote shutdown, automatic emergency shutdown of fusible plug during fire, and automatic shutdown when flow line pressure is too high or too low, etc.