DN Series 25mm Water Meter Check Valve

Application of the DN Series 25mm Water Meter Check Valve:

Water meter check valves are used in whether the inlet, outlet, connectors & fittings, or the plumbing systems to prevent the backflow of water through a water meter. These plastic check valves, also called the one way stop valve, or non-return check valve, serve several important functions, including:

Preventing Backflow:

Water meter check valves ensure that water flows in only one direction, preventing backflow from occurring. Backflow can happen when the pressure in the downstream side of the system becomes greater than the pressure at the source. This can contaminate the water supply or cause damage to the plumbing system.

Water Meter Accuracy

Check valves help maintain accurate measurement of water usage by preventing backward rotation of the water meter. Without a check valve, water could flow back through the meter, causing inaccurate measurements and potentially leading to billing discrepancies.

Protection against Pressure Surges: Check valves act as protection against pressure surges or water hammer. When there is a sudden change in pressure within the plumbing system, such as when a valve is closed quickly, water hammer can occur. Check valves help reduce the impact of these pressure surges, preventing damage to the plumbing system.

System Isolation: Check valves allow for isolation of the water meter and associated plumbing system. This enables maintenance or repairs to be carried out without needing to shut off the water supply to the entire building. By closing the check valve, the water meter and downstream plumbing can be isolated while work is performed.

Overall, water meter check valves play a crucial role in maintaining the integrity of the water supply system, ensuring accurate metering, protecting against backflow, and facilitating maintenance and repairs.

DN Series 25mm Plastic Check Valve

Features:

Water meter check valves have several key features that make them effective and reliable for their intended applications:

1. One-Way Flow:

These valves are designed to allow water to flow in one direction only. They prevent backflow by closing automatically when the water tries to flow in the opposite direction, ensuring that water moves through the meter in the proper direction.

2. Spring-Loaded Mechanism:

Water meter check valves typically employ a spring-loaded mechanism that provides the necessary force to close the valve when there is no forward flow. The spring ensures a positive seal and prevents any leakage or backflow.

3. Low Pressure Loss:

Check valves are designed with minimal resistance to flow. They have streamlined passages that minimize pressure drop, allowing efficient water flow through the system.

4. Compact Design:

Water meter check valves are compact in size, making them suitable for installation in tight spaces. Their compact design also ensures they can be easily integrated into plumbing systems without causing significant disruptions.

5. Corrosion Resistance:

The OV series check valves are made of PVC, which offer excellent corrosion resistance. This ensures their longevity and reliability even in environments with high moisture or chemical exposure.

6. Easy Maintenance:

Water meter check valves are generally straightforward to maintain. They can be inspected easily and cleaned if necessary. Some models may also feature removable caps or access points for servicing or repairs.

7. Standards Compliance:

Quality check valves adhere to various industry standards and regulations to ensure their performance and reliability. Common standards include those set by organizations such as NSF International (NSF/ANSI 61) and the American Water Works Association (AWWA C508).

These features collectively contribute to the effectiveness and dependability of water meter check valves, ensuring accurate measurement, preventing backflow, and maintaining the integrity of the water supply system.

If you are interested in any of Tongtuo’s Water Meter Cartridge Check Valve, please contact us by : junetang@nbtongtuo.com