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15 Mar 2016
Duckbill check valve water flood diffuser
The Rhinoflex duckbill check valves are a very reliable and an excellent, cost effective replacement for flap-gate valves and other check valves. The straightforward one-piece design and reinforced rubber construction eliminate the mechanical and metal components that rust and seize in conventional flap-gates. These are made to order, one of many ways , non-return check valves, produced from many different elastomeric rubbers, and built as reported by the application and also the line pressure and back pressure concerned. One can choose from all standard pipe sizes, and typical application has returned flow prevention and downstream of an pump, at pump stations.
Duckbill check valve water flood diffuser
 The Rhinoflex Duckbill Check valves are passive-reactive devices requiring no external mechanisms or automobiles to operate. The Duckbill Check Valve is normally closed and often will react and open with as low as 1 inch of head pressure and try to provide maximum flow with minimal pressure drop throughout the valve. This simple operation reduces standing water in sewer pipes where mosquitoes along with other pests can thrive.
Their all-flexible construction will pass large objects without blockage yet offers exceptional back flow prevention and may even seal around trapped solids with as low as 1 psi of back pressure.
Ideally, the conical concentric design permits the best flow hydraulics, and lowest pressure drops. It may handle well water volumes and weights which will help prevent backflow very reliably and consistently, without having maintenance in any way.
Typical applications are for Open Discharge of flood control, water-waste water, storm water, flood water, in a manhole, bubble-pit, pond, lake, dam, or sea.
They can also be utilized from the back flow prevention of Effluent ,Sewage, and Sewerage systems.
The duckbill check valves are used with in sub-sea applications for example outfall diffuser systems, and in AIR Aeration, in SPARGE diffusers in Effluent Mixing tanks and slurry mixing systems.


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