Frequently Asked Questions

E-Pro® Electric Valve Closure System

MaxPro™ RA Valve Closure System

UniPro™ Valve Closure Systems

Powell Valve Closure Systems - Do They Work?

Technical Documents about Valve Closure Systems

 
Vacuum Regulators
Powell can design your shut off system to accommodate vacuum regulators.
 

Frequently asked questions, technical topics, and more.

Electric Shut Off Systems for Small Containers
Pneumatic Shut Off Systems for Small Containers
Pneumatic Shut Off Systems for Large Containers with Plug-Type Angle Valves
Pneumatic Systems for Large Containers with Ball-Type Angle Valves
 


Have a unique application? Powell may have a customized solution.

UL-CUL Approved
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.

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Emergency Shutdown Systems for Hazardous Pressurized Gases

Powell Emergency Valve Closure Systems are suitable for use with many pressurized hazardous chemicals including but not limited to:

It is possible to prevent an accidental release of a hazardous chemical. Contact us today to discuss your specific application requirements.

Shutdown Systems for Various Container Sizes

Powell is the only manufacturer to offer both pneumatic or electric systems for both small to large container sizes.

For 150 lb Cylinders and Ton Containers
Electric
Pneumatic
For Large Containers Ranging from 20-Ton Bullet Tanks
to 90-Ton Railcars
Pneumatic
For Plug Type Angle Valves
For Ball Type Angle Valves