Check valves are essential in various industries since they prevent the backflow of liquids and gases, protecting equipment and preventing hazardous situations. Dual plate check valves are popular because of their low pressure drop, compact design, and superior sealing properties. These valves come in different types, each with distinct features that suit specific applications and requirements. In this blog post, we’ll explore the various types of dual plate check valves and their applications to help you decide when selecting a valve for your system.
Wafer Style Dual Plate Check Valve
The wafer-style dual plate check valve is suitable for applications where a low-profile design is necessary. These valves feature two plates hinged through the center, providing quick and reliable closure. This type of valve is ideal for use in pipelines, where the flow is low to moderate, and the space is limited. It offers cost savings as it is smaller, lighter, and requires less space than other valves. The wafer-style dual plate check valve is also easy to install due to the absence of flanges, making it an excellent option for maintenance and repair.
Lug Style Dual Plate Check Valve
Lug style dual plate check valves are similar to wafer-style valves but have threaded inserts. The insert accommodates bolts that fasten each valve between two flanges, allowing easy installation and maintenance. A lug dual plate check valve can support higher pressure and temperature than the wafer variety, making it ideal for various applications. It is used in pipelines that require shut-off protection and backflow prevention.
Double Flange Dual Plate Check Valve
The double flange dual plate check valve is robust with a flanged connection on either end. It is ideal for use in pipelines with high flow rates, pressure, and temperature. This type of valve has two plates that move in tandem and seal tightly against the valve body to prevent backflow. The double flange dual plate check valve requires larger flanges, making it well-suited for pipelines that require high-pressure applications.
Tilting Disc Dual Plate Check Valve
The tilting disc dual plate check valve offers the advantage of a self-aligning disc that ensures optimal sealing and prevents valve damage. This kind of valve can support high flow rates, pressure, and temperature and is suitable for oil and gas, petrochemical, and water pipelines. The tilting disc dual plate check valve is ideal for applications that require bubble-tight sealing and low-pressure drop.
Stop Check Dual Plate Check Valve
Stop check dual plate check valves are sophisticated and durable valves known for their versatility. This kind of valve can stop and start the flow of liquids or gases, prevent backflow, and relieve overpressure. The stop-check dual plate check valve is ideal for demanding applications in the chemical industry, natural gas processing, and petroleum refining. They can accommodate high-pressure applications and support a wide range of temperature requirements.
Conclusion:
Dual plate check valves upgrade traditional valve designs and suit various industrial and commercial applications. The different types of dual plate check valves offer distinct features and are ideal for applications and environments. As mentioned, wafer style dual plate check valves are ideal for low-pressure applications and where space is limited, while stop check dual plate check valves are suitable if you need a valve that can both stop and start the flow of liquids or gases. Before purchasing any dual plate check valve, consider the specific requirements of your application to ensure the valve you choose is the right fit for your requirements.
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