Frequently Asked Questions About:

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 1/4 Turn 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.
UniPro™ System Components

Search all Powell websites:

Frequently Asked Questions About the UniPro Valve Closure Systems

Question:

My plant compressed air supply only achieves 70 psig. Is this enough to operate the UniPro™ System?

Answer:

No. The UniPro™ actuators require 90 psig to operate correctly. You can install a nitrogen system using replaceable nitrogen bottles. Or, if your 70 psig plant air is already sufficiently dry, you can use an air pressure amplifier to raise the pressure in the UniPro™ Air Receiver. Alternatively, you can install any compressor that will achieve a minimum of 100 psig and a drier to reduce the dew point appropriately. The size of the compressor is not of major importance, since the UniPro™ Air Receiver will store enough air to operate the UniPro™ system by itself in an emergency.

UniPro Air Control Unit

 

 

UniPro Air Control Unit

 

 

 

 

UniPro Air Receiver Assembly

UniPro Air Receiver

Back to UniPro FAQ

Richard Fortino, BSME, is Powell’s Lead Valve Closure Development Engineer. Richard is available to assist you with your technical questions by email at rfortino@powellfab.com or by calling 989.681.2158. 

Tank Car Fleets are Changing

©Powell Fabrication & Manufacturing, Inc.