Powell Fabrication & Manufacturing, Inc.

Railcar & Tankcar Shutdown Systems




Powell is the only manufacturer to offer emergency shutdown systems with pneumatic or electric actuators for use on either small containers (150 lb. – 1 ton) or large containers (such as 90 ton railcars). Powell has taken great care to design dependable systems that are convenient to use, powerful, versatile, and most importantly, reliable. We are proud to have developed valve closure systems superior to any other shutdown system available on the market.

Frequently Asked Questions

Available Systems

Compressed Gas Valves

Various Cylinder, Ton Container, and Railcar Valves compatible with both Electric and Pneumatic actuators.  More...

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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Railcar Unloading System - How does the UniPro™ System work?

Answer:

The UniPro™ Valve Closure System stays on the loading/unloading platform, or in close proximity to bulk containers that will be serviced. It does not travel with the containers. When containers arrive to be serviced, the UniPro™ actuators are installed on the open container valves. Should there be a leak, tank car motion, process shutdown or other emergency situation, sensors automatically signal the UniPro™ Control Panel, which immediately activates the UniPro™ Air Control Unit. This sends compressed air or nitrogen to the actuators. They close the valves in seconds, preventing or minimizing a serious release of the chemical being processed.

UniPro Systems

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More Information

Ask the Engineer Archives


for 150 lb & ton Containers

for Railcars & Bullet Tanks

Other Safety Systems


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