Powell Fabrication & Manufacturing, Inc.

Compressed Gas Shutdown Systems


Complete Line of Emergency Valve Closure Systems

Whatever your application, we can provide an emergency valve closure system to suit your needs. Powell is the only manufacturer that offers a full line of valve closure systems to accommodate containers of various sizes.

 

For 20-ton bullet tanks and 90-ton railcars:

For 150-lb cylinders and 1-ton containers:

FAQ about Electric Valve Closure Systems for 150 lb Cylinders and Ton Containers

How much power is required? How does it mount on the valve? Can it accommodate a vacuum regulator (chlorinator)? How does it detect a leak? More...

 

FAQ about Pneumatic Valve Closure Systems for 150 lb Cylinders and Ton Containers

How much air pressure is required? How does it mount on the valve? Can it accommodate a vacuum regulator (chlorinator)? How does it detect a leak? More...

 

FAQ about Pneumatic Valve Closure Systems for Railcars and Bullet Tanks

How much air pressure is required? What if the gas I service is combustible? My process automatically shuts down in a leak. Why would I need the UniPro? More...

 

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™, 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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Field Testing Shutdown Systems

Every Powell Valve Closure System is subjected to a complete development program to guarantee the highest quality, durability, and reliability available in an emergency shutdown system. Whether aimed at 90 ton railcars, gas cylinders, or ton containers, Powell’s development procedure for all new valve closure systems isn’t finished once our exhaustive in-house testing is completed. In addition to our computer controlled actuator test bench, Powell also completes rigorous testing of the entire system in the field, on the actual tank cars or chemical containers where the valve closure systems will eventually be used by our customers.

By testing our valve closure systems in actual service before making the system available on the market, we can identify field issues that might otherwise be difficult to anticipate during our in-house testing. Issues such as corrosive chemical contamination of the equipment, weather effects, and user abuse can be evaluated under the same conditions that can be expected in a customer's application. Even though the field testing period takes time, the resulting reliability and durability more than justify the delay of making the system available to our customers.

If it's a Powell system, you have complete protection that will last.

Shutdown Systems for Various Container Sizes

Powell is the only manufacturer to offer both pneumatic or electric systems for 150 lb Gas Cylinders, Ton Containers, Railcars, Tank Cars, and Bullet Tanks.

Powell offers several brackets designed to adapt to a of valve types, making the systems compatible with an extensive list of hazardous gasses. Powell can design, engineer and test prototype brackets upon request.

For more information about the valve closure system that will work in your application, reference the following: