Industry News

​Understanding Check Valves: Types and Functionality

2023-09-20

Understanding Check Valves: Types and Functionality


As a vital component in any plumbing system, check valves ensure fluid flows in only one direction. At Haozhifeng®, we have several years of experience in producing high-quality valves that guarantee reliable performance. Our valves come in different types, including but not limited to, diaphragm-operated, ball, spring-loaded disc, and stop.

In this article, we will explore the different types of check valves available in the market, their functionality, and how to select the right one for your plumbing system.


1) Diaphragm-Operated Check Valves


As the name suggests, diaphragm-operated check valves work by using a diaphragm to control the fluid flow. The valve allows fluid to flow in only one direction by opening up when inlet pressure increases. On the other hand, it remains closed to prevent backflow from occurring.


These types of valves are ideal for low-pressure plumbing systems with fluids prone to severe contamination.  The pressure-sensitive operation makes it easier to control fluid flow while minimizing the risk of contamination.


2) Spring-Loaded Disc Check Valves

Spring-loaded disc check valves work on a spring mechanism that opens the valve when the inlet pressure increases. Once the pressure reaches a certain level, the spring opens the valve to allow fluid to flow through. When the input pressure drops to a certain point, the spring closes the valve.


At Haozhifeng®, our spring-loaded disc check valves come in different designs, ranging from a simple mechanical to more advanced hydraulic designs. This makes it easier to choose the most appropriate valve for your plumbing system.


3) Ball Check Valves


Ball check valves work like the disc check valves above, but the stopper is ball-shaped. When fluid pressure builds up on one side of the ball, it lifts and allows fluid to flow. When the pressure drops, the ball drops and closes the valve.


These types of valves are ideal for high-pressure systems where fluid flow control is critical. The ball's design ensures minimal resistance, reducing pressure buildup and overflows.


4) Stop Check Valves


Stop check valves are check valves with a manual override. These valves allow the user to control the fluid flow manually, making them the ideal choice for applications where stopping fluid flow is essential.


Stop check valves are usually fitted with a manual handle that the user can turn to control the fluid flow. They are an excellent choice for industrial and commercial applications.


In conclusion, check valves play a vital role in ensuring fluid flow in a specific direction in any plumbing system. Choosing the right type of valve is essential to ensure optimal fluid flow, prevent backflow, and avoid pressure spikes.


At Haozhifeng®, we offer a wide range of check valves designed to meet your plumbing needs. Our valves are reliable, durable, and of high quality. Our pricing is competitive, making us a favorite choice for many industries.

Contact us today to learn more about our check valves and other plumbing products.



8618660210805
info@hzfcasting.com