Valve Closure Systems (Emergency Shut Off Systems)
Powell Emergency Valve Closure Systems address today's most critical site security and safety issues. Powell manufactures and markets shut off systems for railcars or bulk containers, or smaller containers such as 1-ton and 150 pound cylinders. The systems can be configured to close valves within 10 seconds or less in the event of a gas leak, car or container movement, security breach, fire alarm, seismic event, or numerous other circumstances. Valve Closure Systems from Powell are suitable for use with hazardous gases such as chlorine, ammonia, sulfur dioxide and more.
For more information about Powell Valve Closure Systems, reference the matrix below, or visit the official Valve Closure Systems website at:
Powell Valve Closure Systems are Compatible with Vacuum Regulators
Some vacuum regulators used on ton containers can block direct access to the valve stem. In this situation, the vacuum regulator body can be moved out of the way by adding the appropriate couplings, nipples or elbows. They must be steel fittings rated at 3000 psi. Occasionally, an additional yoke may be required, depending on the make and model of the vacuum regulator in use.
Powell Valve Closure Matrix
Powell offers emergency valve closure systems with pneumatic or electric actuators for use on either small containers (150 lb - 1 Ton) or large containers (such as 90-Ton railcars). For more information about the valve closure system that will work in your application, reference the following matrix:
Powell Valve Closure System control panels (UniPro family, MaxPro RA & E-Pro) are listed by Underwriters Laboratory to UL 508A for Enclosed Industrial Control Panels. Panels are listed by Underwriters Laboratory bearing the UL & CUL mark for use in the United States and Canada markets. In applications where a CSA listed control panel in Canada is required, please contact Powell for further information.
Extremely Hazardous Gases
Powell Emergency Valve Closure Systems are suitable for use with hazardous gases such as chlorine,
ammonia, sulfur dioxide and more. More...
About Valve Closure Systems
Powell Valve Closure Systems may prevent reportable releases of hazardous chemicals by automatically closing the container valve. For an extensive amount of informaiton about valve closure systems (sometimes also referred to as "hazardous gas shutoff systems or hazardous chemical safety equipment"), visit the official Powell Valve Closure System website at: www.ValveClosures.com .
