CPVC Swing Check Valves – Is It Worth Purchasing?


CPVC Swing Check Valves are the solution for controlling the flow of liquid or gas especially if you have experienced an inconvenience to the operation of your plumbing system.

These innovative valves are designed to ensure the smooth operation of your plumbing system by preventing backflow, thus protecting your pipes and equipment from potential damage. With their durable CPVC construction, these swing check valves withstand corrosive chemicals and chemical buildup.

This makes them a long-lasting and cost-effective choice. But there’s more. Keep reading and know the physical properties, deep explanation of these valves, and their role.

Ready to regain control over your plumbing system? Don’t wait – contact us at 610-918-7120 to order CPVC Swing Check Valves and secure the smooth operation of your pipes and equipment.

CPVC Swing Check Valves

Swing check valves are mechanical devices designed to allow fluid flow in one direction while they prevent backflow in the opposite direction. They are commonly used in piping systems to ensure the unidirectional flow of liquids or gases.

Swing check valves consist of a disc, known as a swing disc or flap, which swings open or closes depending on the fluid flow direction. When the fluid flows in the desired direction, the disc swings open, allowing the fluid to pass through. However, when the flow reverses, the disc swings closed, effectively sealing the valve and preventing backflow.

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CPVC (chlorinated polyvinyl chloride) is a thermoplastic material that has undergone a chlorination process, transforming it into a formidable contender for demanding applications. This material’s exceptional properties make it ideal for environments that involve corrosive chemicals, higher temperatures, and pressures.

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A. Defining CPVC’s Strength

CPVC boasts remarkable durability thanks to its resistance to corrosion and chemical buildup. Its ability to handle temperatures of up to 200°F (93°C) sets it apart, making it perfect for high-temperature applications. CPVC also has excellent fire resistance properties, low smoke generation, and low toxicity levels.

B. A History of Excellence

CPVC’s journey began in the late 1950s when chemical companies sought to enhance PVC’s properties. Since then, advancements in manufacturing processes have improved CPVC’s quality and performance.

C. Resisting the Elements

CPVC is unyielding in adversity, showing exceptional resistance to acids, alkalis, solvents, and various corrosive chemicals. This resistance is a game-changer in industrial settings where the wrong choice of materials can lead to disaster.


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CPVC’s interaction with swing check valves is a partnership built on strength and resilience, ensuring reliable performance even in harsh industrial conditions. CPVC’s chemical resistance, high strength, and durability make it a natural choice for swing check valves, protecting systems from the corrosive effects of industrial chemicals.

A. Navigating Challenges

While CPVC brings many benefits, it’s not without challenges. Thermal expansion and contraction are among the hurdles that must be addressed through proper design and installation techniques. Like all thermoplastics, CPVC can expand and contract with temperature changes, which may affect the proper functioning of the swing disc.

Proper design and installation techniques, such as using expansion joints and allowing for adequate space, can help mitigate these challenges.

Numerous Applications of CPVC

CPVC’s unique combination of properties has resulted in widespread use across various industries. It is commonly used in hot and cold water supply lines, where its high heat resistance and low thermal conductivity make it an ideal choice. CPVC is also extensively used in industrial piping systems, chemical processing, fire sprinkler systems, and HVAC (heating, ventilation, and air conditioning)

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While swing check valves are commonly used, there are several other types of check valves with different designs and functionalities. These include lift check valves, ball check valves, butterfly check valves, and diaphragm check valves.

Each type has its unique design and operating principle, making it suitable for various applications. The choice of check valve type depends on factors such as flow rate, pressure, temperature, and the characteristics of the fluid being transported.

CPVC check valves are vital in maintaining system efficiency and safety in environments where traditional materials may fail to deliver the required performance.


The use of CPVC in swing check valves offers several advantages over other materials. CPVC’s high heat resistance allows it to withstand elevated temperatures, making it suitable for hot water and steam applications.

Its excellent chemical resistance ensures the valve can handle corrosive fluids without degradation. CPVC swing check valves are also lightweight, making them easier to install and handle. Additionally, CPVC’s smooth internal surface minimizes pressure drop and reduces the risk of blockages or clogs.

Comparison to Other Materials Used in Valves

CPVC swing check valves offer distinct advantages over valves made from other materials commonly used in the industry, such as metal or PVC. Metal valves may be prone to corrosion and can be costly, especially in applications with aggressive fluids.

Although suitable for many applications, PVC valves may not provide the necessary high-temperature or chemical resistance compared to CPVC. Therefore, CPVC swing check valves provide a balance between cost-effectiveness, durability, and superior performance.

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Signs of Needed Repair or Replacement

Certain signs indicate the need to repair or replace CPVC swing check valves. These signs include:

  • Leaking valves
  • Difficulty opening or closing the swing disc
  • Audible noises during operation
  • Visible wear or damage to valve components

If any of these signs are observed, it is important to take immediate action to prevent further damage or system failure. Depending on the severity of the issue, repairs may be possible by replacing damaged components or sealing leaks. In some cases, complete valve replacement may be necessary.

A swing check valve prevents backflow in the opposite directions. It is also used in various industrial applications and can handle higher pressures, perfect for heavy duties.

You only need to install it properly and maintain it for long-lasting effect. The durability and chemical resistance of CPVC, combined with the efficient functionality of swing check valves, provide reliable performance even in corrosive and high-temperature environments.

The successful implementation of CPVC check valves in different applications highlights the importance of considering the material and valve selection for optimal system performance and longevity.

Visit Pipe Xpress to purchase yours. You can also call 610-918-7120 for faster transactions and to address your concerns. Get your CPVC swing check valves now!