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Mar 17, 2022 · Duckbill check valves are non-mechanical, require no maintenance, and do not slam when closed. They are also resistant to organic contaminants such as algae and barnacles and have no problem disposing of suspended solids entrained streams, such as abrasive slurries.
Mar 7, 2024 · When fluid pressure exceeds a certain threshold in the desired direction, it forces the slit of the valve open, allowing unimpeded flow. This process occurs seamlessly without external intervention, making duckbill check valves inherently passive and low-maintenance components.
Feb 22, 2016 · Do not use check valves in vertical lines the flow is downward. In this configuration, the valve won’t close and it loses the ability to do its job properly. Dual and single-plate wafer check valves should not be used for reciprocating compressor or reciprocating pump applications.
Oct 28, 2023 · Closing. The valve closes when the upstream pressure is below the cracking pressure or backpressure occurs. The closing mechanism can change depending on the design of the check valve. The back pressure pushes a ball, diaphragm, disc, or gate against the opening and seals it.
May 1, 2024 · Self-Cleaning Capability. The valve’s unique closing motion naturally dislodges debris, reducing the risk of clogging and ensuring it stays clear and functional. Clog-Free Operation. Its flexibility allows solids to pass through effortlessly, minimizing blockages even in challenging flow conditions. Minimal Maintenance.
May 8, 2018 · The duckbill is unable to open and remains closed despite the pressure exerted upon it. This means that water cannot move in two directions; it can only move forward. That said, it will be necessary to properly install the inline duckbill check valve and avoid these common mistakes.
Jun 13, 2024 · A key characteristic of the duckbill check valve is that it requires no intervention to open or close and operates as a result of a pressure differential across the valve – the pressure from a liquid pushes the two-halves apart allowing the fluid to pass through.
