Lift check valves are an essential component of piping systems, specifically designed to prevent backflow and ensure liquid flow in one direction. Their primary purpose is to prevent water and other fluids from flowing back into the system and keep the water supply safe. Before installing a lift check valve in your system, it is essential to understand the different types of valves available and their applications. This blog has provided a detailed guide to lift check valves, their working and types, and their applications.
What is Lift Check Valves?
Lift Check Valves are special types designed to facilitate flow in one direction and prevent it from flowing back. The valve is composed of a hinged disc that seals against the body to stop backflow and is opened automatically by the pressure or vacuum generated by forward flow. It has no mechanical parts such as springs or diaphragms, thus making maintenance easier. If equipped with a vent relief device, it can protect from large pressure spikes caused by pump cycling. Lift check valves are available in various materials and sizes depending on application requirements for reliable performance.
Types of Lift Check Valves
Piston-type lift check valve:
The piston-type lift check valve is a type of valve that uses a piston-mounted spring and seat for operation. These valves are commonly used in applications requiring a constant fluid flow. They are available in various sizes and can withstand high pressure. They are also effortless to maintain, making them ideal for critical applications.
Diaphragm type lift check valve:
The diaphragm-type lift check valve is another popular type that uses a rubber diaphragm to operate. These valves are commonly used in low-pressure applications. The diaphragm actuates in response to the pressure difference between the inlet and outlet of the valve, allowing or blocking the flow of liquid. They are efficient, reliable, and require minimal maintenance.
Ball type lift check valve:
The ball-type lift check valve is a type of valve that uses a floating ball to check the flow of liquid. When liquid flow ceases, the ball rises, blocking fluid flow in the opposite direction. These valves are commonly used in applications where there is a need for high flow capacity and low pressure. They are easy to install, economical, and virtually maintenance-free.
Dual plate lift check valve:
The dual plate lift check valve is essential in the oil and gas industries. These valves are designed to handle high-pressure and temperature applications. Their unique design makes them ideal for applications requiring a short face-to-face distance. They are suitable for high-pressure gas and liquid pipelines.
Tilting disc check valve:
The tilting disc check valve is a type of valve that uses a disc that is tilted in the direction of flow to control fluid flow. When fluid flows in the appropriate direction, the disk tilts forward, and the fluid passes through. This valve design is suitable for applications requiring high-velocity flow and minimal space. They are also suitable for high-pressure applications.
Conclusion:
Choosing the right type of lift check valve is essential to ensure the safety and efficiency of your piping system. This blog provides an in-depth guide to the different types of lift check valves available and their applications. Always check the valve specifications before purchasing and installing them to ensure they suit your application. Furthermore, always follow the operating instructions and maintenance schedule to keep them in optimal working condition. With the right lift check valve, you can ensure safe and efficient fluid flow in your piping system for years.
Hey, I’m Krutik, a casual blogger expert in the metal industry. I am passionate about providing valuable information to my readers. With a background in engineering and construction, I like playing Cricket & watching Netflix shows in my free time. Thank you for visiting my blog, and I hope you find my information helpful!
