Frequently asked questions, technical topics, and more.
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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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Frequently Asked Questions About the UniPro™ Valve Closure Systems
Question:
I have to operate high torque ACF valves in a very hot environment on tank cars carrying a very toxic chemical. Safety protocol demands that my operators wear full HAZMAT equipment while operating the valves. The process of opening these valves while dressed in a hot suit has been responsible for heat exhaustion on occasion. Can the UniPro™ system help my operators?
Answer:
Yes! The UniPro™ R has the capability of opening the valves at the dome. In a situation as you describe, the operator needs only to install the actuator on the valve and pull the open lever on the UniPro™ R actuator. The valve can be opened to the back-seat condition. Then, by pushing the same lever ahead, the valve can be jogged closed the recommended 1/2 to 3/4 turn. Once the valve is opened, the UniPro™ R actuator can be left on it to function in the event of an emergency exactly like the UniPro™ Standard.
