Maintains a constant pressure difference across pumps or pipelines, prevents flow fluctuations, protects system components, improves efficiency, reduces energy usage, and ensures smooth, reliable operation in water distribution systems.
Because one large main pump is often responsible for the distribution of flow to each sub-station (such as each floor of an apartment) in central heating systems of large residential complexes as well as in district heating systems, irregular differential pressure may occur in each district to unbalance and hamper the effectiveness of heating and air conditioning systems despite sufficient heat sources. By installing differential pressure control valves at junctions of primary and secondary valve systems, it is possible to maintain constant differential pressure for constant flow rate.