Industrial check valve is the indispensable safety component used by the industrial and residential piping system that offers directional fluid controls. These are specifically designed to facilitate the fluid flow in a single direction and prevent the fluid flow to the opposite direction.
It is imperative to prevent backflow as it helps the fluid to protect the piping systems, such as the pumps, from the damage caused by the pressure surges or the hydraulic hammers.
What Are Check Valves?
These are the pressure devices that work based on the pressure difference; it offers minimal resistance to the upstream flow of the fluid and closes when the pressure goes below the cracking point.
You can also close them using the weight of the closing element responding to the gravity, the return spring action, or both in terms of the combination.
While the directional liquid or the fluid will be a simple process, choosing the right type and size of the check valve is critical and challenging to fulfill the needs of the dispensing fluids without any risk. We have listed the great and different types of check valves and the broad industrial applications based on the mechanical movement of the flow control movements.
Swing Check Valve
The valve uses the flap or the disc of the same diameter as the bore of the pipe. The flap is made to offer minute resistance to the working medium, which removes the hassle of the turbulent fluid flow. The flap will be aptly hinged to swing from the valve’s seat freely.
The tilting disc of the check valve will be the modification of the traditional swing valve with the flapper pivoted close to the core, which allows the flow of the fluid and below the disc. Although the tilting disc of the check valve is known for the higher resistance to the fluid flow, they usually open up at the lower cracking pressure.
The swing check valves come with excellent sealing properties and a small design that helps to ensure that the shorter flapper store limits the shutting impact of the valve.
These are generally utilized in industrial water supply pipelines like the float fish farm. It is not recommended to use these in the low-pressure flow media. Fish farming needs more than one type of valve due to the filtration process, as fish need pure water to live. A suitable valve is that it prevents foreign material from entering the cage.
Foot Valves
It is designed for installation at the bottom of the multiple ports of the inlet piping systems. They work as the mechanism that assists in preventing gravitational backflows. It comes with the screen, or you can say it as the filtration shield that helps block the debris and other matter and blocks them from getting in the upstream line.
They have wider inlet openings than the others mentioned above, which helps to reduce pressure losses. The filter on the inlet side helps protect the valve and the system from frictional deterioration.
Depending on the application and the working nature medium, the filter needs to have sufficient mesh sizes that offer efficient filtration and prevent choking during the suction.
Double Disc Check Valve
These are fast-acting and self-actuating valves made with two centrally placed discs. It is the best option for various fluids, applications in the piping system of the chemicals, low-pressure portable water systems, and fire protection utilities.
The dual disc is efficient and works independently with the help of the spring that keeps the valve in its place. The semi-circular discs are not heavy and best for installing narrow-spaced piping systems. Dual disc valves offer the best hydrodynamic efficiency, which helps to limit the overall loss of pressure.
These are made to withstand the severity of the fluid pressure via the stress distribution on the seat. This type of valve comes with impressive non-slam and sealing properties, extending its use in various industries such as the YoonPak, which produces the paper packaging system and needs the valve to transfer the fluid.
Ball Check Valve
They rely on the sphere ball that allows going up and down the shaped valve seat. The motion of the lateral of the ball from the heart happens because of the variations in fluid pressure. These are good for high-pressure piping systems, which need strict contamination control.
The rotatory ball is prone to wear and tear, making this valve suitable for viscous fluid delivery. Manufacturers make it so that it is self-cleaning and prevents trash accumulation.
Conclusion
Choosing the correct type of valve is good as there are different types due to the various applications. Make sure to know the price and the benefits of each separate valve that can help you to select the efficient valve for your job.