Liquid Cooling Check Valve Working Principle And Technical Parameters

cooling water Check Valve refers to a valve that automatically opens and closes its disc based on the flow of the medium itself, preventing backflow. It is also known as a check valve, one-way valve, reverse flow valve, or back-pressure valve. Check Valve data center is an automatic valve whose primary functions are to prevent backflow, reverse rotation of pumps and drive motors, and the release of container media. cooling Check Valve can also be used in pipelines supplying auxiliary systems where pressure may rise above system pressure.

Main Features:

1. This valve is suitable for large-diameter pipe networks carrying media such as water or steam. It provides a check valve with both fast and slow closing options, effectively preventing water hammer.

2. The triple-eccentric seal structure ensures zero leakage, smooth opening, and low flow resistance.

3. The fast-closing section is virtually resistance-free, while the slow-closing section provides smooth cushioning, eliminating water hammer and impact noise.

4. The sealing pair features a triple-eccentric design with a large secondary eccentric disc. Opening the sealing pair allows for separation and closing the contact seal, effectively reducing seal wear and extending service life.

Operating Principle:

This valve primarily consists of a valve body, butterfly disc, regulating valve, and buffer cylinder. The buffer cylinder consists of two oil chambers, connected internally by a check valve and externally by a regulating valve. When the valve is open, the medium pushes against the butterfly disc, causing the hydraulic oil in the buffer cylinder to rapidly flow from chamber 1 to chamber 2 through the internal check valve. When the valve closes, the medium flows back into chamber 1. Due to the impact of the counterweight and high pressure, the disc is largely closed, compressing the oil in chamber 2. The regulating valve is typically only open about one-third. The compressed high-pressure oil in chamber 2 can only flow slowly through this one-third area into chamber 1, causing the disc to close slowly, reducing the peak pressure of water hammer and limiting the occurrence of destructive water hammer.

Due to the function of the regulating valve described above, adjusting its opening can adjust the time it takes for hydraulic oil to flow from chamber 2 back to chamber 1, effectively adjusting the valve's closing speed. Therefore, the smaller the regulating valve opening, the slower the valve's closing speed. A longer release time results in less water hammer, and vice versa. Users can adjust this value based on site needs.