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

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UniPro Typical Platform Installation Drawing

UniPro System Flow Diagram (PDF)

UniPro Catalog (PDF)

Powell Durability Testing

Threshold Pressure and the UniPro™ Torque Limiting Valve Adapter for Soft Seat Valves

Available Valve Adapters for UniPro™ Valve Closure System

Automated Shut Off Valves on Flexible Transfer Hoses: Why Mount An Emergency Valve Closure Actuator On A Tank Car Valve?

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UniPro™ R Pneumatic Emergency Valve Closure System

Avoid production slowdowns, operator injury, or lengthy and expensive environmental cleanups by stopping dangerous chemical leaks with the UniPro™ R Valve Closure System. The only reversible emergency valve closure technology designed for 20-ton bullet tanks to 90-ton railcars, this patent-pending system prevents reportable releases of pressurized hazardous gases at the source. Plus, the UniPro™ R system is easily "reversible" - helping reduce operator effort and potential injuries. Improve your Risk Management Planning (RMP) scenarios with a pneumatic-powered system that not only promises easy installation and low maintenance, but also superior performance and reliability.

U.S. Patent 6,871,834

The UniPro™ R is designed to stand alone as a complete system, or to integrate and interface with existing unloading components. The manual activation lever allows the operator to open and close the valve on demand. The included air supply hose has a safety swing coupling to ensure a secure connection between actuator and gas supply.

LOW MAINTENANCE

Robust motor requires no lubrication, and is completely encased by a steel cover for protection and years of reliable service.

*Designed in accordance with The Chlorine Institute’s guidelines for valve closure systems.

 

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The UniPro™ Valve Closure Family includes the UniPro™ Standard, UniPro™ R (Reversible), UniPro™ LT (Low Torque) and UniPro<™ QT (Quarter Turn).UniPro™ System Components

The UniPro™ Pneumatic Valve Closure System is engineered to be the most versatile, efficient, and reliable unit on the market. The system includes the actuator, control panel, air control unit, and air supply hose.

 

REVERSIBLE

Easily opens tightly closed valves with just a pull on the lever. No need for T-bars and spanners. Pushing the lever in the opposite direction closes the valve. Reversible feature requires an additional air line (90 psig) and does not interfere with emergency operation mode. Designed for high-torque valves only.

PNEUMATIC

Ideal for applications where air or nitrogen are readily available. Requires 90 psig to operate. Fail-closed design operates even if AC power or air pressure is lost.

VERSATILE

Designed to operate high-torque, plug-type angle valves on railcars and tank trucks with dome sizes between 24 and 42 inches in diameter. For use on containers of chlorine*, sulfur dioxide, anhydrous ammonia, liquid hydrogen chloride, and other pressurized hazardous gases.

 

 

 

POWERFUL

Automatically responds to any alarm input, closing valves with 120 lb-ft of torque in less than 10 seconds.

EASY TO INSTALL

Easily mounts to the dome wall in seconds, without tools. Can be quickly removed from the valve handle without detaching from the dome wall to facilitate manual valve operation. Weighs only 30 pounds.

Side view of the UniPro R (Reversible) Pneumatic Valve Closure System Actuator

  

The UniPro™ R Pneumatic Valve Closure System has been engineered, designed, and field-tested to ensure reliable performance while reducing installation time, maintenance, and material cost.

That’s Reliable Engineering.


UniPro R Pneumatic Actuator Designed for Durability

The actuator is constructed of aircraft-quality aluminum and high-grade carbon and stainless steels for maximum service life. The housing is sealed to prevent intrusion from dirt and water in outdoor applications, while a two-step polyurethane coating provides corrosion protection.

 

 

 

 

 

UniPro Control Panel - automatically activates the actuator to close the valve in the event of an emergency.

Maximum Control

The UniPro™ Control Panel automatically activates the actuator to close the valve in the event of a gas leak, car movement, fire alarm, seismic event, security breach, process shutdown, or other monitored condition. You can also manually activate the system by depressing the emergency stop button on the panel.

Air Control Unit - supplies the proper amount of clean, pressurzied air to the system.

Air Control Unit

The air control unit supplies the proper amount of clean pressurized air to the system. Available in two sizes to operate up to six UniPro™ actuators simultaneously.

 

UniPro™ System Components

Versatility

The UniPro™ name represents a whole family of pneumatic actuators for railcar and tanker applications, including the standard, reversible and low-torque models, all designed for plug-type valves, plus a quarter-turn model specifically designed for ball-type valves. The control panel, air control unit, and all optional system components work with any of our pneumatic actuators.

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 engineering for further information.

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