GATE SYSTEM INSTALLATION PROCEDURE
Printed:
10/23/2019
15-1507
OHI
OBERMEYER Hydro Inc.
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INTER-PANEL SEAL
The Inter-Panel Seal is the reinforced rubber strip that spans two adjacent Gate Panels.
The Inter-Panel Seal provides a watertight seal in the area between adjacent Gate
Panels.
RESTRAINING STRAPS
The Restraining Straps are the reinforced rubber strips that attach to the spillway and to
the bottom side of the Gate Panel. The Restraining Strap limits the upstream travel of
the Gate Panel during inflation and insures that the Gate Panel does not flip over
upstream when the gate system is fully raised and the water elevation is less than full
pond depth.
RESTRAINING STRAP CLAMPS
The Restraining Strap Clamps fasten the Restraining Strap to the spillway and to the
Gate Panel. The Restraining Strap Anchor Bolts used to fasten the clamp to the
spillway and the hex head bolts used to fasten the clamp to the Gate Panel are typically
of the same diameter and should be kept tight at all times.
NAPPE BREAKERS
The Nappe Breakers divide the water flowing over the top edge of the raised gate
system. This provides an air path to the otherwise closed off space under the raised
Gate Panel created by the water wall. Without the Nappe Breakers, a vacuum could
occur behind the water wall and high gate loads or vibration may occur.
ABUTMENT PLATES
The Abutment Plates for this project are Stainless Steel. The Abutment Plate
component is located at each section end of the gate system. It provides a smooth
vertical surface for the Abutment Seal that is attached at each end of the abutment end
Gate Panels to seal against.