

An unexpected system failure during peak hours taught one contractor firsthand the critical importance of selecting the right valve for the job. Choosing the wrong valve can lead to costly callbacks, property loss, and sleepless nights for your team and your clients. For busy contractors and system designers, knowing the differences between ball valves and check valves isn't optional—it's what protects reputations and bottom lines.
Pipe valves are essential for controlling the flow of water and other media in plumbing systems. Among the many valve types, ball valves and check valves are two of the most commonly used. Ball valves are valued for their ease of operation and straightforward flow control. Check valves are indispensable for preventing backflow and maintaining the integrity and quality of flowing pipelines.
Understanding the difference between ball valves and check valves isn’t just technical knowledge—it’s a practical necessity. Whether you’re a contractor managing a residential or commercial plumbing project or working on an industrial pipeline, choosing the right valve can affect everything from efficiency to system reliability. This resource pits ball valves vs check valves to compare and contrast their design, options, and use cases so you can make an informed decision for your plumbing needs.
Ball Valves
Ball valves are a common part of many plumbing systems as they offer a reliable way to manually control liquid flow. These valves operate with a simple quarter-turn mechanism. By rotating the handle 90 degrees, the spherical ball within the valve aligns with the pipeline to either allow or shut off flow. This simplicity makes ball valves not only easy to use but also extremely effective when tight seals and precision flow control is needed.
Types of Ball Valves at PVC Pipe Supplies
PVC Pipe Supplies offers a full selection of ball valves designed to meet various plumbing and industrial applications. Here’s an overview of the options:
PVC True Union Ball Valves
True union ball valves are designed with screw type union ends that allow for easy removal, repair, or in-line replacement. They are highly versatile and ideal for systems that require or may require periodic maintenance due to the characteristics of the liquid.


PVC Industrial True Union Ball Valves
Built for hardworking industrial applications, industrial true union ball valves are engineered for greater durability and can handle high pressures and a range of media types. Their union ends deliver easy servicing and adaptability for dynamic environments.


Compact Ball Valves
The one piece compact ball valve is a simple, cost effective solution for straightforward plumbing systems. With a small footprint and easy to install, they come with either glue or threaded ends to fit different setups and pipe connections.


PVC Single Union Ball Valves
Featuring a single union design, these ball valves are ideal for spaces where full disassembly is not required or where space is limited and can benefit from the single union. Single union ball valves are compact, easy to install, and provide reliable flow control in smaller systems.


Actuated Ball Valves
For advanced plumbing systems that require automation, actuated ball valves offer a dependable solution. These valves can be operated remotely via an actuator, making them perfect for applications that demand precision and regular, reliable adjustments.


Common Ball Valve Applications
Ball valves are widely used across residential, agricultural, and industrial settings due to their robustness and reliability. They are commonly installed in irrigation systems, water treatment plants, and chemical handling applications. Their ability to handle a variety of media also makes them suitable for and frequently used in HVAC systems, pool and spa setups, and food processing facilities.
Check Valves
Check valves are an integral part of plumbing and industrial systems that need to ensure liquid flow only moves in one direction. Designed to prevent backflow, they safeguard pipelines from contamination, pressure build-up, and damage caused by flow reversals. Unlike other valves that require manual operation, check valves work automatically by using flow pressure to close the valve when that pressure drops.
Types of Check Valves at PVC Pipe Supplies
PVC Pipe Supplies offers a versatile selection of check valves to match various applications. Here’s an overview of the options:
PVC True Union Ball Check Valves
True union check valves are designed with removable union ends for easy installation, maintenance, and in-line replacements. The ball mechanism inside the valve reliably prevents backflow. This check valve type is an excellent choice for systems that need dependable performance with minimal oversight.


Swing Check Valves
Swing check valves use a flap mechanism that opens to allow flow in one direction and closes when flow stops, effectively preventing backflow. These versatile valves are commonly employed in systems with larger media particles or lower flow resistance.


Spring Check Valves
Spring check valves feature a spring-loaded mechanism that closes quickly when the flow stops and therefore provides fast acting backflow prevention. Their compact design and rapid action make them ideal for pressurized systems and applications requiring immediate closure.


Wafer Check Valves
Wafer check valves have a slim, space saving design made to fit snugly between two flange connections. Despite their compact size, they offer reliable performance and are widely used in tight, space limited installations.


Applications of Check Valves
Check valves have an essential role in a variety of plumbing and industrial systems. They are commonly installed in wastewater systems, irrigation setups, sump pumps, and chemical processing facilities to safeguard operations and prevent contamination, especially between connected pipelines carrying different liquids.


Ball Valves and Check Valves for Your Projects
Choosing the right valve for your plumbing or industrial system often comes down to understanding your specific needs. Ball valves provide reliable flow control and tight shut off, making them ideal for applications with frequent operational changes or manual interactions. Check valves, on the other hand, excel at automatic flow reversal prevention and offer a low maintenance solution for systems to safeguard against backflow.
When deciding between the two, consider the system’s purpose—whether you need precise control or automatic protection against backflow. For the right match, PVC Pipe Supplies offers a comprehensive range of professional quality ball valves and check valves to meet your application’s demands. Explore our selection today and find the perfect fit for your project and achieve that long lasting system performance.