Spin Doctor valve exercising models from Hurco can be mounted to any Ring-O-Matic vacuum excavator, allowing operators to clean debris from the valve and then exercise it. Exercisers have 13 feet of reach and 270 degrees of swing. The Hurco SD-400 provides 400 ft-lbs of torque, sufficient for municipal valve exercising programs. The SD-800 exerciser offers 800 ft-lbs of torque, allowing it to open large and gear-operated valves. The ERB-800 is similar to the SD-800, but on a horizontal axis. It also features a pivoting head, simplifying connection to the valve wrench. 800/544-2518; www.ring-o-matic.com.

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