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Adjustable pressure reducer how to solve string pressure
Adjustable pressure reducing valve stringing problem is not a common phenomenon, but it may also be presenting problems, as an operator, we still need a good understanding of, and to control the reasons for the analysis and processing skills: in the process of using Why is the pressure regulator valve stringing problems? As the pipe after the pressure relief valve at the pipe network rupture, turn off the valve at P1 or overhaul, stop pump A pump operation, resulting in the valve after the valve after the water pressure is very low as empty tube. When the normal water supply is resumed, the pressure at the front of the pressure reducing valve suddenly increases when the valve at the front pipe of the pressure reducing valve suddenly opens or the water pump of the pump station A is turned on. The short time memory between the front pipe section and the rear pipe section of the adjustable pressure reducing valve In the larger pressure difference, the pressure relief valve too late to work, pressure relief valve on the cavity pressure is very small, just under such a large pressure drive, the pressure relief valve is forced to open, leading to pressure relief valve before and after the pressure tends to balance , Valve short-term failure, that string pressure. Since once presented, and when to deal with it? The following summarizes the three: 1, based on the working principle of the valve, after the relief valve installed a relief valve, when the pressure after the relief valve is higher than P2, open the relief valve pressure relief, maintenance A village of normal water pressure. 2, after other methods to shorten the string pressure, so close to zero. 3, according to the working principle of adjustable pressure reducing valve, properly increase the diameter of pilot valve and conduit to reduce the pressure on the upper and lower chamber to reach equilibrium time, so that the trend of 0 time difference. After theoretical research, the second plan described above is the most economical, most applicable, through the drain valve, quickly opened, the pressure on the diaphragm chamber pressure greater than the lower cavity, prompting the adjustable valve Quickly returned to normal. Stringing time is 0 at all.