Check Valves

Fuller Valve's Rubber Duckbill Check Valves are an exceptionally reliable and cost effective alternative to flap-gate valves and other conventional check valves.

Rubber Check Valves require minimal maintenance; the simple one-piece design and reinforced rubber construction eliminate the mechanical and metal components that rust and seize in conventional flap-gates and check valves.

Duckbill Check Valves are a passive - reactive device requiring no external mechanisms or power source to operate. The flexible rubber sleeve is normally closed but will react and open with as little as 1inch of head pressure and always providing maximum flow with minimal pressure drop across the valve. This ease of operation reduces standing water in sewer pipes where mosquitoes and other pests can thrive.

The all flexible construction will pass large objects without blockage yet offers exceptional back flow prevention and can even seal around trapped solids with as little as 1 psi of back pressure.

Fuller Valve's Rubber Duckbill Check Valves are manufactured with top quality materials including an outer layer specially formulated to repel growth of marine organisms.

Typical Applications

• Storm water outfall
• Flood control systems
• Pumping stations / Wet wells
• Sewer interceptor check valve
• CSO / SSO / Effluent discharge
• Submerged outfall diffuser nozzles
• Coarse bubble air diffusers

Available Elastomers

Standard construction is a natural gum rubber inner tube with a multi-resistant Neoprene outer cover. Neoprene is also commonly used for the inner tube in sewage and treated effluent applications. Other elastomers are available but not often required where this style of valve would be used.

Sizes over 24 inch requiring curved duckbill shape are not for sale in the United States of America

Contact Fuller Valve to specify a Rubber Duckbill Check Valve for your application