Sluice gate BULK HEAD

Bulk head gates are fabricated from steel or stainless steel. They are designed to be placed in slots or grooved channel walls and are lifted and lowered with overhead or mobile cranes. The gate has lifting lugs for handling. The slots or grooves are lined or fabricated from steel or stainless steel for ease of insertion and good fit with rubber seals on the bulk head gate. The sill surface may be formed by flat and level concrete invert or with an embedded sill plate. Bulk head gates are used for equipment isolation such as pumps, screens and service gates. When equipped with a lintel seal, the gate can seal off heads greater than the gate height. Rubber seals around the perimeter of the gate control leakage effectively and are hydrostatically energized. Bulk head gates seal in one direction. Bulk head gates can be used in multiple locations (slots) and can be removed completely for storage. They cannot be inserted when significant flows or heads are present since the only closing force is gravity. Removal against high differential heads is not practical or possible. A small fill or balancing gate or valve can be installed on the bulk head gate to facilitate head balancing and gate removal. Variations in mounting such as surface (face) mounting are possible. Bulk heads may also be stacked like stop logs. Specialized lifting beams can be designed for retrieval of underwater bulk heads.