Golden Harvest, Inc. has released the stainless steel Model GH-29 Sluice Gate available in self-contained and non self-contained frame configurations. The tapered wedge sluice gate is designed with the head angles attached to the slide at an incline; the angle of inclination corresponds to the sealing periphery of the gate frame. At the final rotations of the operator stem acting down on the gate disc it wedges itself against the corresponding angle of the sealing perimeter creating a nearly leak tight orifice. Fully adjustable wedges are also located at the top of slide to provide additional reinforcement against unseating head pressures. Once the gate is unseated from the wedged position, operation is nearly free of friction.