5 Things to Know Before Buying Industrial Swing Check Valve

Check valves are generally installed in the discharge pipeline of the pumping system to ensure that the pumped medium does not flow back. With so many check valves on the market, finding the right one for your application can be a challenge. Before you start shopping for check valves, make sure you know the answers to these five questions.

Goto BSTV to know more.

1. Application intention of check valve

The intended use of the valve and the environment in which it will be used are critical in order to select the correct valve for your specific application. It is very common to install the wrong check valve in the piping system, and the check valve should generally be selected according to the size of the pipeline.

2. The flow rate of the check valve

Know that the flow rate is the most important, in gallons per minute (GPM), gallons per hour (GPH), if your process flow is higher than 8 feet per second flow through the valve, there will be higher wear Rate. When the flow rate is higher than 8 feet per second, whether it is a rubber valve or a metal valve, wear will cause performance degradation. The faster the flow, the more wear on the check valve, resulting in reduced life. Knowing the flow rate can help you choose the best check valve for your specific requirements.

3. The inlet pressure of the check valve

Knowing the inlet pressure will help determine which type of check valve you need. Do you need a "ball" style check valve? Do you need a "swing" check valve? Or do you need a silencer check valve? Or a flange check valve or a wafer check valve? Determining which check valve you need depends on the orientation of the check valve in the pump system.

4. The back pressure of the check valve

Back pressure is the pressure difference between the inlet and outlet pressures. For example, a valve is installed at the end of a pipe that discharges fluid into a small bore. How high will the water be above the surface as the flow rises? Back pressure occurs when water rises above this valve. Therefore, according to your detailed use, you should know how much back pressure the check valve needs to accept.

Want more information on Industrial Swing Check Valve? Feel free to contact us.

5. Whether the check valve valve is installed in the medium

If the valve is installed submerged in the medium, this means that there is always a back pressure on the valve. In this case, you need to pick a check valve that is intended for submerged conditions and is manufactured from the correct material. The mistake of putting the wrong check valve in the piping system is relatively common. If your check valves are having frequent problems, it may be the result of a poor selection. Before purchasing a check valve, please inform Vitoli Valve salesman of your working conditions and needs in detail, and then you can choose a more suitable valve!

Related News & Blog

Gate Valve Mastery in Chemical Processing: Ensuring Fluid Control

Gate valves are essential components in chemical processing plants, enabling precise control over the flow of fluids. Among the various types of valves available, gate valves stand out for their excep...

Controlling the Flow: Manual Operated Valves in HVAC Systems

In any HVAC (Heating, Ventilation, and Air Conditioning) system, the control of fluid flow is essential for its proper functioning and efficiency. One crucial component that plays a significant role i...

Chines Spring Festival is Approaching

Weidouli factory will be off work from Jan 24th, to Feb 10th, to Feb 10th, , in observance of the Chinese traditional spring festival.Chinese Spring Festival, also called Lunar New Year...

 

Authors: Mike Lassas ' President/CEO and Cal Hayes  ' General Manager, WaterWorks Division

Check valves are typically installed into the discharge piping of a pumping system to ensure that the material being pumped does not flow backward. With so many check valves available to the market, it can be a challenge to find the right one for your application. Before you start shopping for check valves, make sure you know the answers to these five questions.

1. What service will the valve be operating in? i.e What is the application? It is critical to know what you want your valve to do so that you can select the correct valve for your specific application. It is quite common to have the wrong check valve installed in a piping system, which typically happens when check valves are selected based on the size of the pipe instead of the flow conditions.  
2. What is the flow rate? It is very important to know the rate of flow in terms of gallons per minute (GPM), gallons per hour (GPH), or liters per second (L/S). If your application has a flow rate of higher than 8 feet per second flowing through the valve, you will experience a higher rate of wear and tear. When flow is higher than 8 feet per second, abrasion will cause deterioration to any valve, regardless of whether it is a rubber-seated valve or a metal-seated valve. The faster the flow, the more wear you will see on your check valve, resulting in decreased life. Knowing your flow rate can help you pick a check valve best suited for your specific application. 
3. What is the inlet pressure?  Knowing the inlet pressure will help determine which style of check valve you might need. Do you need a 'Slip On' style check valve? Do you need a 'flanged' style check valve? Or do you need an 'inline' style check valve? A slip on style check valve typically is installed at the end of a discharge pipe. An inline style check valve is typically installed in the middle of a piping system. You can also have a flanged in-line check valve or a flanged end-of-line check valve. Deciding which to use really depends on where the check valve will be located in your pumping system. 
4. What is the back pressure?  Back pressure is the differential pressure between the inlet and outlet pressures. For example, imagine a valve is installed at the end of a pipe which is draining fluid into a creek. When that creek rises, how high will the water rise about that valve? When the water rises above that valve, back pressure is created. So with your specific application, you should know how much back pressure the check valve will need to withstand. 
5. Will the valve be installed  in a submerged condition?  If the valve is installed in a submerged condition, this means that there will always be back pressure on the valve. If that is the case, you want to chose a check valve designed a submerged conditions and manufacture from the correct materials to accommodate the constant back pressures that result from submerged conditions. 

It is extremely common to have the wrong check valve put into a piping system. If you are having frequent problems with your check valves, it could be a result of improper selection. Before shopping for a check valve, review your maintenance history, find the answers to the question above, and then consult with the check valve specialists at Proco Products, Inc. Check out the Guides in the Proco Tool Box to learn more.  

*Reproduced from an article featured on www.empoweringvalves.com. To view the article, click here.*

Contact us to discuss your requirements of Swing Check Valve. Our experienced sales team can help you identify the options that best suit your needs.