Pneumatic Emergency Shut Down Valve

ALIS Valves offers Pneumatic Emergency Shut Down Valves for industrial applications requiring rapid and reliable isolation during emergency situations. These valves use a pneumatic actuator operated by compressed air to open or close the valve according to the system’s control requirements. They are designed to isolate the flow of liquids or gases when triggered by an emergency signal, helping limit the release of process media and protect equipment, personnel and connected systems. Depending on the valve and actuator configuration, fail-safe operation can be provided to move the valve to a predetermined safe position, such as fully open or fully closed, when the control air supply is lost.

Pneumatic Emergency Shut Down Valves are suitable for applications in oil and gas facilities, refineries, petrochemical plants, chemical processing units, power generation facilities and industrial pipeline systems. They are commonly integrated into emergency shutdown systems to isolate process lines, storage tanks and equipment during abnormal operating conditions. Important selection factors include operating pressure, temperature, process media, required closing time, valve size, body and sealing materials, actuator specifications, control signals and fail-safe requirements. Selecting the appropriate valve configuration helps support dependable emergency isolation, effective process safety and reliable operation under the intended working conditions.