BOPIN mainly engaged in the processing of the dual plate check valves including wafer type dual plate check valves, lug type dual plate check valves, flange type dual plate check valves and butt-welded end dual plate check valves, etc. Main materials range can be cast steel, stainless steel, special alloy, cast iron, forged materials, etc. Valve standard has API, DIN, JIS, GB …
Our check valve workshop specializes in various types of dual plate check valves. In addition to this check valve series, we also have various other types of check valve models for customers to choose from. Each type is designed for specific applications to prevent back flow and ensure the correct fluid flow direction. Common types include single disc swing check valves, single disc thin swing check valves, long structure flange connected swing check valves. Single disc check valves are characterized by a hinged valve disc that can swing to prevent back flow. Long structured spherical check valve, which uses a ball that moves when the pressure drops to prevent back flow. The lift check valve with a long flange structure and clamp connection has a vertically movable valve disc with a spring to prevent back flow. There is also a check valve that combines check and closing functions to prevent back flow. In addition, there are axial flow check valves, tilted disc check valves…
The wafer-type dual plate check valve is typically installed between two flanges using a "wafer" design. It is sandwiched between the flanges, secured with bolts, and sealed with a gasket, providing a compact and reliable connection for preventing reverse flow.
A lug-type dual plate check valve connects using threaded lugs on both sides of the valve body. It is mounted between flanges, with bolts passing through the lugs for secure attachment, allowing for easy installation and maintenance without needing full disassembly.
A flange-type dual plate check valve is connected by bolting the valve's flanged ends directly to the corresponding flanges of the pipeline. Gaskets are used between the valve and flanges to ensure a leak-tight seal, providing a strong, durable connection.
The single disc wafer-type check valve features a compact design with a single disc that swings to block reverse flow. It is lightweight, space-efficient, and easy to install between flanges, offering reliable performance in preventing back flow with minimal maintenance.
The thin body shape single disc wafer-type check valve offers a compact, lightweight design with a slim profile. It efficiently prevents reverse flow, reduces pressure drop, and is ideal for installations with limited space, while providing reliable performance and easy maintenance.
The single tilted disc wafer-type check valve features a disc that tilts to block reverse flow. Its compact, space-saving design provides quick response to flow changes, minimizes pressure drop, and offers reliable backflow prevention, ideal for high-flow and high-pressure systems.
Common Fault Causes, Troubleshooting Methods and Maintenance Recommendations for Wafer Check Valves A wafer check valve is a type of valve that automatically opens and closes its disc relying on…
Maintenance of wafer check valves is crucial to ensure stable operation, extend service life, and prevent system faults like water hammer and leakage. Based on its working principle and structural…
The sealing test of dual plate check valves can follow the three-core process of “Visual Inspection — Static Test — Dynamic Test” to verify the valve’s sealing performance step by…