Cleveland Armstrong's® One-Way ROLLING BLADE® (OW) gate has a number of unique design benefits:
Superior sealing due to cam action.
Fast closing and opening.
One internal moving part.
Curved blade to promote flow regulation
Seals on top, bottom, and side of the gate; these help provide a seal for pressure or vacuum applications.
Cam action used during blade closure. This action forces the blade up into the seal at the closure point rather than running the blade along the seal. The end result is a tighter seal with a longer seal life and superior sealing on pressure and vacuum application.
Optional outboard bearings are to protect the bearings from material contamination and provide a better shaft seal.
Curved blade design allows the gate to be used as a metering valve.