the string of adjustable pressure reducing valve pressure problem, is not a common phenomenon, but also the possibility of failure problem, as users, we still need to take a look at, and to grasp the cause analysis and solving ability: in the process of using adjustable pressure reducing valve why series pressure to be the problem? Section of pipeline rupture after because of the pressure reducing valve, close the P1 valve or repair, pumping A pump stop running, lead to valve pressure reducing valve section area after the water pressure is very low even after atc. Section before back to normal water supply, the pressure reducing valve valve suddenly opened or pumping station pump opens, A pressure reducing valve before the section pressure increases quickly, the adjustable relief valve section before and after the section between the in A short period of time there is A big pressure difference, pressure reducing valve doesn't work, pressure reducing valve on cavity pressure is small, is driven by the pressure of the larger pressure reducing valve is forced open, cause the pressure reducing valve and pressure into balance, pressure reducing valve failure, short string of pressure. If appear, and how to solve? The following summarizes three kinds: 1, based on the working principle of the pressure reducing Industrial Valves installed a relief valve after pressure reducing valve, when the pressure reducing valve after pressure is higher than the P2, open a pressure relief valve pressure relief, protection of a village's normal supply pressure. 2, shorten the time series of pressure by other means, to make it close to zero. 3, according to the working principle of the adjustable pressure reducing valve, proper increase of pilot valve and pipe diameter, reduce inferior vena achieve pressure balance on time, or tends to zero time lag. Through practice verification, described above, the second solution is one of the largest, the most economical and practical can through the drain valve, quickly open, make diaphragm chamber pressure is greater than the inferior vena, prompted adjustable pressure reducing valve quickly returned to normal. Series of pressure time basic is zero.

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