Check valves ensure unidirectional flow within piping systems, automatically preventing backflow without external control. Activated by pressure differentials, these valves protect pumps, compressors, and other critical equipment from reverse flow, pressure spikes, and water hammer.
Their passive operation and mechanical reliability render them essential components in maintaining system integrity across a wide range of industrial processes.
Check valves are available in various designs, each tailored to specific service conditions. Swing check valves utilize a hinged disc that swings open with forward flow and closes under reverse pressure, making them well suited for large-diameter pipelines. Lift check valves feature a guided disc that rises to permit flow and seats tightly under backflow, providing excellent performance in high-pressure environments.
Ball check valves rely on a rolling ball as the closure element, making them ideal for viscous or slurry-like fluids. Wafer check valves incorporate dual spring-loaded half-discs, allowing for quick response and minimizing water hammer. Duckbill check valves use an elastomer sleeve that flexes to permit forward flow and collapses under backpressure, offering a clog-resistant option in wastewater systems.
From water treatment to marine systems and power generation, check valves play a vital role in protecting equipment and maintaining a consistent flow direction. Selection is based on fluid properties, system pressure and temperature, flow rate, and valve orientation.
Wastewater applications often favour swing or duckbill designs for their ability to handle solids, while lift check valves are commonly used in high-pressure steam lines due to their sealing integrity. With proper sizing and material selection, check valves provide a low-maintenance, long-lasting solution for one-way flow control in even the most demanding environments.
You bring the challenge — we’ll bring the valves, instruments, and expertise.
Let's talk!
