Butterfly Valve Dn150 - Famous Factories for Quality Valves

This dataset represents a 12-month monitoring sequence for a DN150 butterfly valve installed in a controlled test loop to study how actuator opening translates into process throughput. The two primary series plotted are Flow Rate (L/s) and Valve Opening (%). The opening series is defined as the percent of valve travel from fully closed to fully open, while the flow series captures the volumetric rate measured by a calibrated differential pressure flow meter. By using two y-axes, the chart accommodates the different scales and preserves legibility so both series can be observed simultaneously against the same time index (months). The x-axis uses month labels to provide a time dimension that supports trend detection, seasonality in demand, and potential hysteresis effects in the hydraulic loop. The main insight from the synthetic data is that flow responds strongly to opening in the mid-range (roughly 40–70%), producing larger flow increments per unit increase in opening; this reflects the nonlinear characteristics of valve-stem dynamics and valve-seat leakage in real systems. At higher openings (>75%), the rate of flow growth tapers off as system impedance and upstream/downstream pressure limits dominate, illustrating diminishing returns when chasing throughput solely by actuation. This pattern emphasizes that control strategies should target specific opening windows to optimize energy use and maintain stable operation, rather than chasing absolute maximum opening. The dataset is intentionally simplified but designed to resemble common hydraulic behavior: a near-linear opening-to-flow response in mid-range with saturation at extremes. Extending the analysis with additional variables such as upstream pressure, downstream pressure, temperature, and fluid density would enable a multivariate model to predict flow more accurately under varying conditions. Practically, this dimension supports monitoring and predictive maintenance by highlighting deviations from the established opening-flow relationship, which could indicate valve wear, fouling, or changes in system impedance. In summary, the dimension helps engineers align actuator commands with targeted throughput while considering the broader hydraulic context.