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Golden Harvest - Model GH-39 -Stainless Steel & Aluminum Flap Gates for Pump Discharge
Golden Harvest, Inc. produces the GH-39 flap gates using high-quality materials such as stainless steel, aluminum, and spun aluminum, featuring neoprene seals to enhance performance. These flap gates are designed with flexibility in mind, available in various shapes including square, rectangular, and circular. Their design includes an automatic circular opening suitable for gravity flow and pump discharge, making them ideal for applications where robust construction is needed to withstand severe pressure conditions. Their built-in taper allows for automatic opening/discharge with minimal differential pressure, and effective prevention of backflow when the pressure head is higher on the gate's face side. Additionally, they act as debris skimmers, though regular maintenance is advised to ensure functionality. Installation should consider a vertical elevation drop, and additional protection when exposed to potential heavy debris or ice. Various mounting options and design variations such as side-hinged flaps and buoyancy chamber configurations are available.- Back Flow Prevention in Water and Wastewater Treatment Applications
- Operates Automatically With Small Differential Head Pressure
- Provides for Flood and Salinity Control in Coastal Areas
- Flexible Design Customized to Fit Most Project Applications
Golden Harvest, Inc. supplies Flap Gates in stainless steel, aluminum, and spun aluminum and supplied with neoprene seals. Flexible design available in square, rectangular and circular shapes.
Automatic, circular opening for gravity flow and pump discharge can be aluminum or stainless steel. Stainless steel construction is recommended for pump discharge applications where the flap gate is located such that pressures are violent at the discharge pipe.
Flap gates have a built-in taper. With a small differential pressure on the back of the gate, it opens automatically to allow discharge. When the head is greater on the face side of the gate, the flap closes automatically to prevent back flow.
Flap gates act as natural skimmers of debris such as branches, logs and trash. It is recommended that frequent inspection and cleaning be scheduled to keep the flap gate working effectively. Installation should incorporate a vertical elevation drop below the flap gate of 300 to 600mm, to allow debris to work its way free of the gate. Protection of a flap gate should be considered when the installation projects into a stream flow where heavy debris or ice may be present.
Special variations include side-hinged flap, top hinged flap with buoyancy chambers and secondary buoyant door designs.
Mounting Options:
Surface / 125# Flange / Spigot or Collar / Thimble