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- Duckbill check valves allow flow in only one direction through a pipe or tube while preventing any backflow in the opposite direction. When fluid pressure is applied from the upstream side, the duckbill flexes open to allow flow. But if pressure comes from the downstream side, the duckbill flaps seal shut to block reverse flow.
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What is a duckbill valve?
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Do duckbill valves work in stormwater systems?
Duckbill Valves are unique, one-piece, elastomeric components that act as backflow prevention devices. Also known as one-way valves or check valves. They have elastomeric edges, or lips, shaped in a way that resembles a duck’s bill (hence their name).
Mar 7, 2024 · Duckbill check valves act as vital safeguards, ensuring that fluids flow in the intended direction while inhibiting the undesirable return of contaminants or pressure surges.
- Prevent Backflow
- Cost Effective Check Valves For Stormwater Drainage
- What Are The Benefits?
By controlling and preventing backflow, check valves prevent discharges from wastewater treatment plants from contaminating clean water supplies. Check valves can also help prevent flooding, standing water, ensure water flows in the correct direction and prevent potentially harmful phenomena such as water hammers. In addition, check valves are wide...
There are also potential health and environmental impacts. In many urban environments, excess stormwater is drained into the existing sewerage system, where the network can become overwhelmed, resulting in the backflow and overflow of contaminated water.
The unique design prevents backflowPassive non-mechanical operation and negligible maintenance and energy costsEasy installation on all existing infrastructureResistant to corrosion, fire and abrasive (sludge) flowsJun 13, 2024 · Inspired by nature, the duckbill valve is a simple check or one-way valve that is formed from a flexible material such as rubber or some other elastic material. Typically, the two halves form a beak-like appendage that allows a fluid to flow easily in one direction.
May 1, 2024 · At first glance, a duckbill valve appears quite basic – a flexible, one-piece elastomeric sleeve with a tapered end. Yet, don’t let its simplicity mislead you. This intuitive design is the cornerstone of its superior functionality and efficiency: Self-Cleaning Capability.
Duckbill check valves offer several advantages over traditional check valve designs. Firstly, their simple and compact design eliminates the need for mechanical components like hinges and springs, reducing the risk of failure and reducing maintenance requirements.
Compared to traditional swing check valves or spring-loaded poppet valves, duckbill valves offer several advantages: No mechanical hinge or spring to fail or wear out, giving them superior reliability and service life. Low cracking pressure and high flow rate due to streamlined design. Tight sealing even around suspended solids and minimal leakage.
