Spring Check Valve
The spring check valve operates in such a way that fluid is allowed to pass through the valve in only one direction, preventing any reverse flow. Its operation relies solely on the pressure of the fluid itself, and it does not require any external control mechanism. The internal spring ensures that the valve closes automatically when the forward flow stops or when reverse pressure occurs, providing reliable and efficient backflow prevention.
Technical Specifications of Spring Check Valve
The spring check valve is made of UPVC and, due to its lightweight structure and suitable height, can be installed in both vertical and horizontal positions. Therefore, when choosing a spring check valve, you will face no limitations regarding installation orientation.
The technical specifications of the spring check valve are as follows:
- Nominal Pressure: 16 bar
- High resistance to chemical corrosion
- UV resistance against sunlight exposure
- Anti-scaling and sediment-resistant design
- High durability and structural strength
- Completely silent operation during valve opening and closing
Applications of Spring Check Valve
In piping systems, if the fluid encounters a pressure drop or an obstruction along its path, it may begin to flow in the reverse direction. The spring check valve, which is a type of polymer industrial valve, is used in such situations to prevent backflow within the pipeline.
Thanks to its high‑quality raw materials, this product offers
excellent durability and reliable performance. Similar to other Visspar valves, the UPVC spring check valve is 100% tested before leaving the factory to ensure optimal functionality.
Operation of Spring Check Valve
In a piping system, a minimum pressure difference between the inlet and outlet sides of the valve is required to open the passage in a spring check valve. This minimum pressure pushes the internal disc open, allowing the fluid to pass through.
Once the passage is opened by this pressure, the valve remains open as long as the pressure does not drop. If the pressure increases further, the opening widens, enabling a greater flow rate through the spring check valve.
| Product | Size (mm) | Quantity per Carton |
| U-PVC Spring Check Valve | 20 | 60 |
| U-PVC Spring Check Valve | 25 | 48 |
| U-PVC Spring Check Valve | 32 | 72 |
| U-PVC Spring Check Valve | 40 | 32 |
| U-PVC Spring Check Valve | 50 | 16 |
| U-PVC Spring Check Valve | 63 | 8 |
| U-PVC Spring Check Valve | 75 | 4 |
| U-PVC Spring Check Valve | 90 | 3 |
| U-PVC Spring Check Valve | 110 | 2 |