Powell Fabrication & Manufacturing, Inc.

Compressed Gas Storage - Cylinder Safety


Typical Installation Drawings:

Frequently Asked Questions About:

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 150 lb Gas Cylinders, Ton Containers, & Tube Trailers

Powell is the only valve closure manufacturer to offer both an electric and a pneumatic system for 150 lb gas cylinders and ton containers.  In addition, Powell offers a pneumatic system for specialty gases contained in tube trailers. Powell Valve Closure Systems are superior to any other emergency shutdown system available on the market and can be integrated within your existing compressed gas storage room offering you the most reliable protection against releases of hazardous gases. 

 

MaxPro RA Pneumatic Valve Closure System

Chlorine Shutdown Ton ContainerIdeal for applications where air or nitrogen is readily available. Fail-closed design operates even if AC power or air pressure is lost. Requires 90 psig. Designed for both 1-ton containers and 150-lb cylinders. Unique mounting bracket easily attaches and detaches from the valve stem in seconds, without tools. More...

 

 

 

 

E-Pro Electric Valve Closure System

Electric Actuator Chlorine ShutoffUses standard 120-volt AC power. Ideal for smaller plants or remote facilities that don’t have compressed air or nitrogen required by pneumatic systems. Designed for both 1-ton containers and 150 lb cylinders. Unique mounting bracket easily attaches and detaches from the valve stem in seconds, without tools. More...

 

Specialty Gas Closure System in 150 lb Cylinders, Ton Containers, & Tube Trailers

Gas Emergency Shutdown Tube TrailerDesigned for 150 lb Cylinders, Ton Containers, and Tube Trailers.  Applicable to a variety of valve designs and speciality gases, the system has a unique mounting bracket that can be mated to any of several available valve adapters. For use on anhydrous hydrogen chloride, dichlorosaline, trichlorosaline, silicon tetrachloride, and other pressurized hazardous gases.More...