Check valves are used in different industries for different purposes. These valves are usually used to prevent backflow of liquids. They can be placed in any pipe flow and they are designed in various materials. Therefore, it is important to find a good check valve manufacturer. It is a company that provides quality products and services.
Swing type check valves are the most common type of check valves. This type of valve is designed to stop backflow and it has a thin disc that swings. Once the pressure has gone down, the disc automatically closes. Discs of this kind can be made of corrosion-resistant materials. However, the disc must be regularly cleaned and maintained. A check valve can also be made of rubber.
Ball check valves are another type of valves. These valves are equipped with a controllable rotor. A rubber coated ball arrests the flow of media in the return condition. With the help of springs, the ball can be closed faster. The internal rotor can be controlled to open and close the valve.
Duple check valves are used for a wide range of industrial applications. Their strong corrosion resistance makes them ideal for water treatment and chemical equipment. In addition, duple check valves are also used in power generation. Some of the types of duple check valves include gate, butterfly, globe, and wafer.
Swing check valves are a good choice for high-pressure applications. When the pressure drops, the disc rises up to the seat. During this time, the flow is redirected and the disc is out of the way. As soon as the flow resumes, the disc is guided back to the seat. The interior surface of the main seats forms a positive seal, allowing the flow of media to flow smoothly.
Cast steel check valves are very useful for liquids with corrosive properties. They are also used in gas, oil, and cryogenic applications. Brass is also used for a variety of applications. Iron can be a good choice for other applications. It has a low cost and has the ability to withstand heat and cold.
Wafer check valves are short and can be easily mounted between companion flanges. They can be threaded or flanged. Due to their compact design, they are ideal for small pipe systems. They are also a great choice for gas and liquid applications.
Other types of valves include ball check valves, which are suitable for irrigation and water. Ball valves are available in polypropylene, ethylene, and fiberglass. Low-pressure ball check valves are also available.
If you want a check valve that is corrosion-resistant, you can choose from a variety of options. Some of these valves are made from stainless steel. Other options include aluminum, bronze, and iron.
There are many check valve manufacturers to choose from. But you must ensure that the one you choose has a good reputation. Choose a company that has a lot of experience in producing the type of valve you need.