| CSI Code | Short Description | Extended Description |
| 11280 | Hydraulic Gates and Valve |
| 11285 | Hydraulic Gate | Bulkhead Gates High - Pressure Gates Hinged - Leaf Gates Radial Gates Slide Gates Sluice Gates Spillway Crest Gates Vertical - Lift Gates |
| 11295 | Hydraulic Valve | Butterfly Valves Regulating Valves |