Low Leak Sluice Gate

United Conveyor Corporation offers a low leakage sluice gate that has been tested and proved to operate effectively; it significantly reduces door leakage associated with earlier sluice gate designs. This gate differs from the standard model primarily in the method used to wedge the door against the seat. The wedging arrangement distributes the closing force on the door to the points where most leakage occurs. The low-leak door has a measured leakage rate of less than one GPM with material behind the gate and a 30 ft. head of water.
  • Three sets of wedges and rollers to determine the plane of the door to minimize leakage at all points
  • Separate rollers for travel and wedging greatly reducing stress on the rollers promoting reliable up and down travel
  • Additional guides o the sides of the travel rollers to eliminate the possibility of rollers disengaging during operation
  • High Strength Construction on carbon or stainless steel depending on application.
  • Improved seat design with ¼” thick elastomer backing sheet between the stainless steel face plate and the gate face to provide a flexible sub-surface
  • Gate seat is twice the width of standard gate seats
  • Improved ability to control leakage due to metal-to-metal seal between the gate and seat
  • Complete gate assemblies on standard sized gates
  • Upgrade kits available

  1. Can old style sluice gates be upgraded to the Low Leak design? [+]
    Yes, most old UCC designs can be upgraded without replacing the entire gate structure provided the components to be reused are in good working condition.
  2. What happens when the gate wears and begins to leak more? [+]

    All three roller/wedge arrangements are adjustable to compensate for seat or gate face wear.

  3. Are there nozzle options available for handling corrosive water supplies?[+]

    More corrosion resistant stainless steels and other more exotic alloys are available.


Ideal for converting wet sluice systems into a “dry” ash system without change to the existing bottom ash hoppers.