| 摘要 |
A controller (8) for a pilot valve (102) adjusts the output pressure (P2) of a pressure reducing valve (44) supplying water to a consumer region (3). The controller includes a clock (22) and aims to reduce output pressure, whilst still providing a minimum required pressure at a critical point (CP) in the region, by adjusting the output pressure in accordance with both the flow rate into the consumer region and with time. |
