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Products - Powell is the only manufacturer to offer both electric and pneumatic gas shutoff systems for both small containers (150 lb cylinders - 1 ton containers) and large containers (railcars, bullet tanks, etc.) (Versión en Español)

• Valve Closure Systems for Small Containers
  • E-Pro Electric Valve Closure System for Small Containers (Versión en Español)
    • E-Pro FAQ (Versión en Español)
    • Typcial Installation of the E-Pro System
    • Comparison of E-Pro Vs. Competitor Systems (Versión en Español)
    • E-Pro Product Literature
    • E-Pro Catalog
  • MaxPro RA Pneumatic Valve Closure System for Small Containers (Versión en Español)
    • MaxPro RA FAQ (Versión en Español)
    • Typical Installation of the MaxPro RA System
    • MaxPro RA Product Literature (PDF)
    • MaxPro Catalog (PDF)
• Valve Closure Systems for Large Containers (Versión en Español)
  • UniPro Standard Valve Closure System for Large Containers with Plug-Type Valves (Versión en Español)
  • UniPro R - Reversible Valve Closure System for Large Containers with Plug-Type Valves (Versión en Español)
  • UniPro LT - Low Torque Valve Closure System for Large Containers with Plug-Type Valves (Versión en Español)
  • UniPro LTR - Low Torque Reversible Valve Closure System for Large Containers with Plug-Type Valves (Versión en Español)
  • UniPro QT - Valve Closure System for Large Containers with Quarter Turn Ball-Type Valves (Versión en Español)
  • UniPro System Components (Versión en Español)
    • UniPro Valve Adapters (Versión en Español)
    • Air Control Assembly (Versión en Español)
    • Hose Reel Assembly (Versión en Español)
    • Air Receiver Assembly (Versión en Español)
    • Explosion Proof Motion Detection System (Versión en Español)
    • Basic Control Panel (Versión en Español)
    • Custom Control Panel (Versión en Español)
    • E-Stop Panel (Versión en Español)
  • Gas Detector Systems - Gas Sensors
    • Transmitters
    • Receivers
• Powell Scrubber Systems (Versión en Español)
  • Sentry 2000 Emergency Scrubber (Versión en Español)
  • Guardian Single Pass Venturi Scrubber (Versión en Español)
  • Provent Scrubber System (Versión en Español)
  • Portable Scrubber System (Versión en Español)
  • Titan Tank Car Scrubber System (Versión en Español)
• Powell Application Evaluation System - customized solutions for your unique applications
• Ask the Engineer
  • E-Pro^® FAQ (Versión en Español)
  • MaxPro™ RA FAQ (Versión en Español)
  • UniPro™ FAQ
    • Who should consider using a UniPro™ Valve Closure System?
    • My process automatically shuts down in the event of a leak. Why do I need the UniPro™ Valve Closure System?
    • How does the system work?
    • What components do I need for my UniPro™ Valve Closure System?
    • How does the UniPro™ system accommodate tank car valves with different torque requirements?
    • Why the UniPro LT? Can’t I just turn down the pressure to operate the soft seat/low torque angle plug valves with the Standard UniPro™?
    • What if I only get tank cars or tank trucks with soft seat angle plug valves?
    • How much torque do the UniPro™ actuators deliver?
    • The containers I service have quarter turn angle ball valves on them. How do I close them with the UniPro™ Valve Closure System?
    • What do I need on my platform to be able to use the UniPro™ Valve Closure System?
    • My plant compressed air supply only achieves 70 psig. Is this enough to operate the UniPro™ system?
    • What if my plant air system or electric service fails? Will the UniPro™ system still close the valves?
    • I want the UniPro™ Control Panel to integrate with my other system controls. Is this possible?
    • I have professional technicians that are capable of assembling our own air control system and panels. Can I still use UniPro™ actuators?
    • I service a combustible gas. Is there any danger of the UniPro™ system making a spark during operation?
    • My control room is quite a distance from the platform. Would I be able to activate the UniPro™ system from there?
    • How long does it take to mount the UniPro™ actuator on the valves?
    • How long does it take to close the valves once the UniPro™ actuator has been activated?
    • Is there anything special I need to do with the valves when mounting the UniPro™ actuator on them?
    • 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?
    • Can I use the Torque Limiting Valve Adapter on the UniPro™ R to open and close soft seat/low torque valves?
    • If the UniPro™ R with the Torque Limiting Valve Adapter won’t open the soft seat/low torque valves, must I remove it from the dome every time I need to open them?
    • Why does the UniPro™ R actuator require two air hoses?
    • What if an emergency closure is necessary while my operator is using the UniPro™ R to manipulate a valve on a tank car?
    • My UniPro™ Operating Manual says not to turn down the operating pressure to close tank car valves with soft seats. That’s how competitive actuators do it. Why not the UniPro™?
    • I’ve seen tank car valve closures that mount directly to the valve body. Why does the UniPro™ Standard Pneumatic Actuator mount to the tank car dome wall?
    • Why is the UniPro™ Control Panel bigger than the panel for the other system used on tank car valves?
    • The company that owns the tank cars that we service changed all the angle plug valves in the tank car domes. Will the UniPro™ system fit the new valves?

Articles, News, Technical Documents

• Valve Closure Systems - Video Application
• Tank Car Fleets Are Changing - Valve Closure Systems for both High Torque, Low Torque, and Soft Seat Valves (HTML) (PDF)
• Powell Concept Identification Process
• Powell Durability Testing (Versión en Español)
• Powell Field Testing
• Do You Have a Reliable Shutdown System?
• Product Comparison Between Powell Electric Valve Closure and Competitor Systems (Versión en Español)
• Piping Modifications to Accommodate Vacuum Regulators (Chlorinators) (Versión en Español)
• Available UniPro Valve Adapters
• Explosion Proof Motion Detection System
• Automated Shut Off Valves on Flexible Transfer Hoses: Why Mount An Emergency Valve Closure Actuator On A Tank Car Valve? (Versión en Español)
• Powell Valve Closure Systems - Pressurized Hazardous Gases
  • 1,3-Butadiene
  • Anhydrous Ammonia
  • Bromomethane
  • Butane
  • Carbon Dioxide
  • Chlorine
  • Chloroethane
  • Chloromethane
  • Dimethylamine
  • Ethylene
  • Ethylene Oxide
  • Hydrogen Chloride
  • Hydrogen Cyanide
  • Hydrogen Fluoride
  • Methyl Mercaptan
  • Propane
  • Propylene
  • Sulfur Dioxide
  • Trimethylamine
  • Vinyl Chloride Monomer