Controller and control system for a pressure reducing valve
A pressure reducing valve and controller technology, applied in the direction of control/regulation system, fluid pressure control, electric fluid pressure control, etc., can solve problems such as critical point change
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[0130] Referring to the accompanying drawings below, figure 1 Shown is an aortic water supply pipeline 1, the aortic water supply pipeline 1 supplies water with a water pressure of P1 to a pressure reducing valve (PRV) 44 through a pipeline 46, and then supplies reduced water to a measurement area (DMA) 3 through an output pipeline 48. The output water pressure is P2 water, and the DMA area includes a large number of pipelines 4 supplying water to a large number of users 5 . One of the users 5 is set to the critical point CP where the pressure P3 is significantly lower than elsewhere in the DMA 3 area due to the distance from the critical point CP to the PRV 44 and / or the height of the critical point with respect to the PRV . Although only one critical point is indicated in this embodiment, other embodiments may have multiple critical points.
[0131] Adjacent to the PRV 44 are provided a first pressure measurement sensor 6 for measuring the output pressure P2 of the PRV, and ...
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