This is an important safety protection device for oil and gas well sites.When the first-stage throttling of thewellhead shows excessive pressure,the pressure of the gathering and transportation pipeline decreases (lossof pressure due to pipeline blasting),or the fire hazard of the wellhead and the separator,the system willautomatically close the gate valve to cut off the fluid,prevent the occurrence or expansion of the accident,andachieve the purpose of protecting the well site equipment,personnel safety,and energy loss.

Equipped with an electronic monitor,it can realize the production site monitoring of the operation status of thewellhead device,and the remote ESD implementation of automatic control to shut the well.