Vortex Dropper Formers
Vortex droppers lead wastewater into a drop pipe to a pump station or large manhole. The flow is turned and swirled as it enters the central drop pipe. Vortex droppers are used to avoid wastewater impinging on the side of the pipe or manhole in an uncontrolled manner. This results in less:
- erosion
- turbulence
- entrained air that affects pump performance
- H2S and other gases evolved
ARMATEC manufactures vortex droppers to achieve smooth curved surfaces for the least turbulence. Reinforced concrete is poured behind the fibreglass former to achieve structural integrity necessary for the project. Stiffeners are integrated into the fibreglass to provide both strength during backfilling of concrete, and to physically lock the fibreglass to the concrete. Concrete pours are done in several lifts to avoid collapsing the fibreglass former.
The fibreglass is surfaced with a special ARMATEC abrasion resistant layer to provide additional resistance to wear and erosion. The layer is incorporated during fibreglass manufacture, therefore is integral with the unit.
At site special attention is paid to the ends of the vortex dropper former to ensure wastewater cannot infiltrate behind the fibreglass.
Back to FIBREGLASS PRODUCTS Section Page
Back to HOME page for All Products
|