Powell Fabrication & Manufacturing, Inc.

Installing Railcar Gas Shutoff 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 About:

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.

Versión en Español

Is there anything special I need to do with the valves when mounting the UniPro™ actuator on them?

Answer:

It is advisable to not leave the valve in the back-seated condition. After opening the valve completely by hand or with a T-bar or spanner, it should be closed ½ to ¾ of a turn. This results in a slightly quicker closing time and eliminates the possibility of a worn out valve sticking in the back-seated condition. Then the UniPro actuator should be installed on the valve handle.

In the case of the UniPro QT, the valve should be opened by hand first. when mounting the UniPro QT valve adapter to the valve handle, take care to insert the hitch pin so that it can be accessed for removal after the valve has been closed.

UniPro System Installed

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Tank Car Fleets are Changing


for 150 lb & ton Containers

for Railcars & Bullet Tanks

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