Watch Our Video on Check Valve Operation
An Overview of Check Valve Functions
What Is a Check Valve?
A check valve, also known as a one-way or non-return valve, is a mechanical component that permits or restricts the flow of liquid or gases within an application. As an incredibly important device in industries such as chemical processing, automotive, and water treatment, check valves function to prevent backflow when the pressure in a system reverses. This, in return, ensures the efficiency of your equipment, as it protects piping, pumps, other valves, and more.
How a Check Valve Works
It’s important to note that for a check valve to operate correctly, the main components start in contact with each other, even before gas or liquid flows through them. These parts include the following:
- Poppet
- Spring
- O-ring
- Plastic casing
As the valve starts opening, a small amount of flow will be emitted. The amount of liquid or gas you need to escape during check valve operation can determine the right spring pressure and O-ring for the application. Once enough pressure builds, the O-ring will lift off to allow for significant flow, and with the valve fully open the poppet will travel to its limit. When the pressure decreases, the components begin to move back to their original position, where the valve will then reseal and reset.
Keep in mind that any check valve that’s been inactive for a long time can be susceptible to leaking or stiction, where the O-ring has a delayed separation from the seat.
Smart Products USA Is Your Destination for High-Functioning Check Valves
For over 40 years, Smart Products USA has focused on the intricate details of how one-way check/pressure relief valves work in low-pressure, low-flow devices. Sharing this knowledge with existing and potential customers can save them time and money as they develop their current or future applications. As a resource, our information on the creation of durable and efficient check valves can answer critical questions, such as:
- Will a certain step affect the device’s performance?
- Is there a part in the operation process that will be critical to the application?
When working with us, you can trust that we’ll share 40 years of knowledge and experience that allows us to recommend check valves that are customizable, precise, economical, and comprised of the highest quality materials. Additionally, our team provides a vast array of other services to ensure that our customers receive exactly what they’re looking for. This includes the following:
- Special testing
- Cleanroom molding and assembly
- Hot melt gluing
- Other value-added solutions
Contact Us Today
For those interested in a high-quality check valve to meet industry specifications, reach out to our team of experts to get started. If you have any additional questions about check valve operation or our line of valves, pumps, and more, please contact us directly, as we’re ready to assist you.
