Con Forms

By Heather Burlingame | September 28, 2010

Con Form Air Duff shut-off valveThe Air Duff shut-off valve is designed to stop the free-fall of concrete from the pump's discharge hose by compressing it. It operates from a standard ½-inch line from the pump's air supply and fits any hose from 3½ to 5 inches in diameter. It can be operated by remote control.

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