CIRCULATION PRESSURE CONTROL AND RELIEF REGULATOR (VAR)

Relief regulator VAR is suitable for maintaining constant pressures in gas appliances or for relieving brief pressure surges in control systems. By using the VAR, inadmissibly high pressures in vessels can be prevented. Compressors and fans generate different outlet pressures in the case of different capacity demands. These fluctuations can be controlled by discharging a bypass flow from the outlet to the inlet of the compressor unit. Downstream consumers thus dispose of constant pressure over the entire capacity range.