View More
Filters
Check Valves (non-return valves)
22 products
Check valves, also known as non-return valves, ensure that fluid flows in only one direction.
By preventing backflow, check valves protect pumps, pipes, and other valves from damage caused by reverse pressure.
Our range of check valves are available in a number of sizes (¼" to 12") and materials to suit a vast range of applications.
- Swing Check: Suitable for high-flow applications, offering minimal pressure drop.
- Ball Check: Durable and efficient, with a simple design.
- Wafer Check: Space-saving design, perfect for limited installation space.
- Dual Plate Check: High-performance, low-pressure drop design.
- Ductile Iron Double: Designed to regulate flow between a tank and a pump, these valves can also function as manual on/off valves for tank venting. When fluid flow ceases, the disc automatically swings into position to prevent backflow.
- Spring Loaded: ideal for gas and oil applications in residential, commercial, and industrial heating systems.
- Ductile Iron Flap: suitable for headwall or flange mounting, offering corrosion resistance and preventing debris and backflow in pipelines, thanks to its double-hinged design for excellent sealing.
How to select the right Check Valve for your application.
To ensure optimal performance and longevity, consider the following factors when choosing the right check valve:
- Pipe Size: The diameter of the pipe to which the valve will be connected.
- Fluid Type: The specific fluid being transported, whether it's water, oil, gas, or another substance.
- Pressure Rating: The maximum pressure the valve can withstand without compromising its integrity.
- Temperature Rating: The maximum temperature the valve can handle without affecting its performance.
- Flow Rate: The required flow rate of the fluid through the valve.
- Material Compatibility: The compatibility of the valve material with the fluid to prevent corrosion and other issues.
By carefully evaluating these factors, you can select the ideal check valve to meet your specific application requirements.
















View More
Filters
Recently viewed
FAQs for Check Valves (non-return valves)
Check valves are essential components that prevent fluid or gas from flowing in the wrong direction. They offer numerous benefits, including:
- Safeguarding equipment from damage caused by backflow.
- Maintaining fluid purity by preventing the mixing of different materials.
- Preventing pipe system failures and ensuring uninterrupted operation.
- Ensuring consistent pipe system pressure for optimal performance.
- Protecting systems from damage caused by debris and contaminants.
A single check valve offers protection against backflow in water that has undergone changes in appearance, taste, odour, or temperature but remains safe for consumption and poses no health risks. A common application for single check valves is in systems where hot and cold water supplies are mixed.
A double check valve, essentially two single check valves working in tandem, provides a more reliable and secure solution for preventing contamination through backflow. The additional valve enhances the seal, creating a stronger barrier.
Non-return valves are often used in applications where preventing backflow is beneficial but not strictly necessary.
Unlike check valves, non-return valves typically aren't designed for long-term reliability, use with drinking water, or performance under stress. Check valves on the other hand, undergo rigorous testing to ensure they meet these higher standards.