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Fontaine-Aquanox - Model Series 40 -Weir Gate
The Fontaine-Aquanox SERIES 40 weir gate is used to control flows and level in different applications by opening downwards and allowing water flow over the stainless steel plate. The SERIES 40 sealing system design is similar to that of the SERIES 20.
Stainless Steel Construction
Because of its stainless steel construction, the SERIES 40 has high corrosion and erosion resistance, and can be operated many years with minimum maintenance. Stainless steel allows the weir to be fabricated in a multitude of shapes to measure flows. The most common shapes used for measuring flows are the rectangular weir or the 90 degree V-notch weir.
AWWA Standard
SERIES 40 gates are built to meet or exceed AWWA C561-14 standards pertaining to the design safety factors, stem and stem couplings, stem guides positioning, manual lifting devices, and leakage.
Flange Back Frame
The stainless steel frame on the SERIES 40 is a flange back type (Fig. 40-02) available in open or self-contained configurations, providing a solid one-piece gate. The rigidity provided by the frame makes it easier to handle in transportation and installation, with less risk of distortion. The flange can be modified in order for the gate to be installed on many applications.