Series 800 Aluminum Gates offer high performance and long life in designs which accommodate a wide range of mounting arrangements and flow conditions. Rugged, reinforced aluminum construction is combined with tough, flexible ultra-high molecular weight polyethylene (UHMW) seat/seals, to provide a heavy-duty assembly.  Flush bottom closure is provided by a resilient bottom seal.  In addition to the wide range of standard gates, Whipps Inc. can quickly and economically produce standard gates or gates customized for unusual applications.  Whipps, Inc. Series 800 Aluminum Gates can be constructed of either 1/4” thick or 3/8” thick material.


  • Superior Performance: Whipps Inc. guarantees lower leakage than that listed in AWWA C-501 – Cast Iron Sluice Gates or the latest revision, AWWA C-560-Cast Iron Slide Gates.  Whipps, Inc. will guarantee leakage of no more than 0.10  gpm/ft of seal perimeter in seating head and unseating head conditions.
  • Cost: Fabricated aluminum gates almost always cost less than cast iron, stainless steel, or fiberglass gates.
  • Durability:  Aluminum has proved to be a suitable material in most water and wastewater applications. (If concern exists about the suitability of aluminum, Series 900 Stainless Steel Gates are also available.) The U.V. stabilized UHMW seat/seals that are utilized on our aluminum gates are field proven to maintain shape and integrity in demanding applications.  Whipps, Inc. tested the UHMW seat/seals to confirm the ability to withstand continuous operation in an abrasive environment.  The testing consisted of 25,000 gate open/clos cycles in an abrasive media while experiencing only negligible wear. (Actual testing performed on Series 900 Gate with similar UHMW seal systems. Test results available upon request.)
  • Reliability:  The slide will not “freeze” to the frame after long periods of inactivity.  Whipps, Inc. aluminum gates incorporate UHMW seat/seals to prevent any metal-to-metal contact between the slide and the frame.
  • Delivery: The fabrication process required to turn raw materials into an aluminum gate is relatively quick.  Most materials are stocked at Whipps,Inc.
  • Self-Adjusting Seals: The Series 800 aluminum gates have a self-adjusting seal system that completely eliminates the need for field adjustment.  This seal system was developed with the understanding that many gates are installed in locations where field adjustment is not practical or possible.  Our UHMW seat/seals are much more durable than rubber J-seals or P-seals.  While rubber seals can crack, flatten and/or adhere to the slide, our U.V. stabilized UHMW seat/seals will not.  In addition, UHMW has a lower coefficient of friction than rubber and thus reduces the effort to operate the gate.
  • Low Maintenance: Aluminum gates do not require periodic painting, and require less operator attention compared to cast iron or steel gates.
  • Ease of Repair: In the unusual event that the seat/seals are damaged, they can be replaced in the field with common tools.  The gate does not have to be removed from the wall.  If the seating surface on a cast iron gates is damage, the gate will have to be removed from the wall and shipped back to the manufacture for re-manufacture.
  • Range of Sizes:  The process to design and manufacture fabricated gates allows for a nearly unlimited range of sizes. 
  • Mounting Configurations:  Gate frames may be embedded in the channel walls, mounted to a wall with anchor bolts, or mounted to a pipe flange.  Designs are available for gates to cover square, rectangular or round openings.

Optional Features

Gate size and service conditions determine the gate configuration required for each application.  Overall gate widths, side frame sections an invert sections shown in this literature illustrate only a few of the many configurations available. 

  • Downward Opening:  Most gate models can be specified for downward opening service by adding a “D” to the model number.  Such gates are used where there is insufficient clearance to open an upward opening gate or where the gate is to be used as an overflow weir.  Downward opening gates maybe furnished with our without a top seal.
  • Interconnected Actuators: All models may be specified with two interconnected actuators by adding “I” to the model number.  This arrangement is generally recommended for gates 72” or wider and having a width greater than twice the height.
  • Non-Rising Stems:  All models may be specified with non-rising stems by adding “N” to the model number.  This operating stem arrangement is normally selected for installations with low headroom.

For additional information, please contact our sales department.