MaxPro™ RA

Emergency Shut Off System for Gas Cylinders & Ton Containers

Avoid production slow downs, operator injury, or lengthy and expensive environmental cleanups by stopping dangerous chemical leaks with the MaxPro™ RA Pneumatic Valve Closure System. Designed for both ton containers and 150-lb gas cylinders, this patented emergency shutdown system prevents non accidental releases of pressurized hazardous gases. 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.

MaxPro RA

U.S. Patent 6,840,503

Stop Dangerous Leaks of Extremely Hazardous Gases Where They Occur

Some valve closure systems are simply built. Ours are engineered.

PNEUMATIC

Ideal 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.

EASY TO INSTALL

Applicable to a variety of valve designs and hazardous chemicals, the system has a unique mounting bracket that can be mated to any of several available valve adapters. For use on containers of chlorine*, sulfur dioxide, anhydrous ammonia, liquid hydrogen chloride, and other pressurized hazardous gases. Also accommodates vacuum regulators (chlorinators).

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

DEPENDABLE

Mounts on the valve body, not the yoke. This prevents any torque from being transferred to the yoke, which could cause the lead gasket between the yoke and container valve to fail, resulting in a dangerous leak.

POWERFUL

Automatically responds to any alarm input, instantly closing valves with 40 lb-ft of torque.

VERSATILE

Applicable to a variety of valve designs and hazardous chemicals, the system has a unique mounting bracket that can be mated to any of several available valve adapters. For use on containers of chlorine*, sulfur dioxide, anhydrous ammonia, liquid hydrogen chloride, and other pressurized hazardous gases. Also accommodates vacuum regulators (chlorinators).

LIGHTWEIGHT & COMPACT

Only 5.5 pounds. Exclusive “Right-Angle” (RA) design allows manual valve operation with a standard wrench. Also minimizes length when installed, extending no more than 4 inches beyond the rim of a 1-ton container.

LOW MAINTENANCE

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

MaxPro RA

The MaxPro™ RA 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.

MaxPro ™ RA System Components

Every component of the MaxPro™ RA Pneumatic Closure System is engineered to be more versatile, efficient, and reliable than other units on the market. The system includes the following: actuator, air supply hose, mounting bracket, control panel, air control unit, air receiver tank, uninterruptible power supply, remote e-stop, and chlorine wrench.

Designed for Versatility

This patented design consists of a pneumatic drive with a spring-loaded coupler designed to accommodate valve stems of varying lengths.

Durability

The actuator is constructed of aircraft-quality aluminum and high-grade carbon and stainless steels for maximum service life. A two-step polyurethane coating provides additional corrosion protection.

UniPro Control Panel

Maximum Control

The MaxPro™ RA Control Panel automatically activates the actuator to close the valve in the event of an accidental release, 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. A single control panel can activate up to eight container-mounted actuators to close all eight valves — simultaneously.

The included 6-foot air supply hose has a safety swing coupling to ensure a secure connection between actuator and gas supply, while helping to prevent kinks or tangles in the hose.

The air control unit supplies the proper amount of clean, pressurized air to the system.

MaxPro Air Control Unit

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.