1. Based on the working principle of the pressure reducing valve, a pressure relief valve is installed behind it. When the pressure after the pressure reducing valve is higher than P2, the pressure relief valve is opened to relieve the pressure to ensure the normal water supply pressure.
2. Shorten the string pressure time by other methods to make it close to zero.
3. According to the working principle of the adjustable pressure reducing valve, appropriately increase the diameter of the pilot valve and the catheter to reduce the time for the upper and lower chambers to reach pressure equilibrium, and even the time difference tends to zero.
Through practical verification, the second solution mentioned above is the most economical and practical. It can be quickly opened through the drain valve, so that the pressure in the upper chamber of the diaphragm is greater than the pressure in the lower chamber, prompting the adjustable pressure reducing valve to recover quickly normal. The string pressure time is basically zero.
Post time: Apr-28-2025