Sluice gate ROLLER

Roller gates are designed to control flow through large waterway openings, where economy and ease of operation are important. They are also the most versatile gates in terms of size. A roller or fixed-wheel gate consists of a fabricated steel slide, cast iron rollers, and rubber seals. The gate leaf is a box-like design of welded construction and varies in width and height as required by the size of the opening. The thickness is determined by the water pressure. Slots at the sides of the gate opening are required for the rails and contact faces for side seals. The thrust developed from water pressure against the gate is transmitted through the rollers to the rails and into the structure. The lift capacity required to open the gate under maximum operating conditions is minimized as the thrust is transferred to rolling friction. Features & Benefits Lower friction resistance in opening/closing than sliding surfaces Versatile size range Custom designed Variety of finishes available Can be overflow type (where water depth is the same as the height of the gate slide) or breastwall type (where water is considerably deeper than the height of the gate, and/or where complete closure of the opening is desired) Operate by cable hoists