The Rhinoflex duckbill check valves are an extremely reliable and a good, cost effective
substitute for flap-gate
valves and other
check valves. Be simple
one-piece design and reinforced rubber construction take away the mechanical and metal components
that rust and seize in conventional flap-gates. These are generally tailor
made, one of many
ways , non-return check valves, made out of various
elastomeric rubbers, and built as per the
application along with the line
pressure and back pressure concerned. These come
in all standard pipe sizes, and
typical application is back flow prevention and
downstream of an pump, at pump stations.
The Rhinoflex Duckbill Check valves are passive-reactive devices requiring no external mechanisms or power supply to use. The Duckbill Check Valve is generally closed but will react and open with less than One inch of head pressure and constantly provide maximum flow with minimal pressure drop across the valve. This simple operation reduces standing water in sewer pipes where mosquitoes as well as other pests can thrive.
Their all-flexible construction will pass large objects without blockage yet offers exceptional back flow prevention which enable it to even seal around trapped solids with as few as 1 psi of back pressure.
Ideally, the conical concentric design permits the top flow hydraulics, and lowest pressure drops. These may handle very well water volumes and weights and stop backflow very reliably and consistently, with no maintenance at all.
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.
Like supply in the back flow protection against Effluent ,Sewage, and Sewerage systems.
The duckbill check valves are successfully used in sub-sea applications for example outfall diffuser systems, plus AIR Aeration, in SPARGE diffusers in Effluent Mixing tanks and slurry mixing systems.