Golden Harvest, Inc.

- Model GH-30 - Aluminum Stop Gates


This section covers Aluminum Stop Gates. The equipment provided under this section shall be fabricated, assembled, erected, and placed in proper operating condition in full conformity with the drawings, specifications, engineering data, instructions and recommendations of the equipment manufacturer. Gates and operators shall be supplied with all the necessary parts and accessories indicated on the drawings, specified, or otherwise required for a complete, properly operating installation, and shall be the latest standard product of a manufacturer regularly engaged in the production of fabricated gates.

Approved Manufacturers
Gates supplied under this section shall be Model GH-30 Stop Gates as manufactured by Golden Harvest Inc. or engineer approved equal.

Governing Standards
Except as modified or supplemented herein, all gates and operators shall conform to the applicable requirements of AWWA standards.

Quality Assurance
The manufacturer shall have 5 years experience in the production of substantially similar equipment, and shall show evidence of satisfactory operation in at least 10 installations. The manufacturerÕs shop welds, welding procedures and welders shall be qualified and certified in accordance with the requirement of the latest edition of AWS Sections D1.1, 1.2 and 1.6..

The fully assembled gates shall be shop inspected, tested for operation and leakage, and adjusted before shipping. There shall be no assembling or adjusting on the job sites other than for the lifting mechanism.

1. The manufacturer shall submit for approval by the purchaser, drawings showing the principal dimensions, general construction and materials used in the gate.

Leakage: Gates shall be substantially watertight under the design head conditions. Under the design seating head, the leakage shall not exceed 0.3 US gallons per minute per foot of seating perimeter. Under the design unseating head, the leakage shall not exceed 0.3 US gallons per minute per foot of perimeter.

Materials and Construction

General Design
All parts of the gate shall have a minimum thickness of 1/4 inch. Gates shall be designed for embed or in-channel mounting as shown on drawings.

The gate frame shall be extruded aluminum. The guide grooves in which the head guide angle travel shall contain ultra high molecular weight polyethylene bearing strips/seals in dovetail slots.

The frame configuration shall be of the flush-bottom type and shall allow the replacement of the side seals without removing the gate frame from the wall.

The slide shall consist of aluminum plate reinforced with 'U' shaped aluminum extrusion welded to the plate to limit its deflection to 1/360 of the gate's span under the design head.

Guides and Seals
The guides and seals shall be of UHMW.

The flush bottom resilient neoprene seal shall be mounted to the frame.

Lifting Assemblies
A single handle shall be provided for gates up to 3 feet in width. Duals handle shall be provided for gates over three feet in width.

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