John Valve Rhinogate Valve

Patented Collapsible Seat

Unique design patented seat for slurry isolation knife gate valve

The RHINOGATE™ slurry isolation knife gate valve encompasses a revolutionary, patented collapsible seat design.

This design offers bi-directional versatility, full bore operation and encompasses no pockets or grooves in the seat area where solids can cake up and prevent gate closure – a feature that is unique only to the RHINOGATE™.

During gate closure, the polyurethane seat is forced into the specially designed cavity ring. The groove in the cavity ring locks in the gate, preventing gate deflection and ensuring a 100% leakproof seal.

Upon gate retraction, the polyurethane seat returns to its original position, thereby allowing full bore operation – and no pockets or grooves in the seat area.

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Seat Open Position
Closed Seat Position