Pipeline shutdown valve

The Axelson™ PA pneumatic surface safety shutdown gate valve automatically performs fail-safe during a predetermined emergency condition, a control pressure loss, or a mechanical seal failure within the device. This fail-safe function may involve closing or opening the valve depending on customer requirements.

This versatility of function enables the PA valve to be used as a safety shutdown valve, a diverter valve, or a blowdown valve. The Axelson PA automatic valve meets the requirements of ANSI B16.34 and API 6D Specifications. It was developed to replace power-operated gate valves, ball valves, butterfly valves, globe valves, and plug valves on installation when the fail-safe function is desired to protect personnel, the installation, and the environment.

The unit may also be adapted with a manual hand-wheel to override the automatic function. Other accessories include heat-sensitive lock-open caps and hydraulic overrides