DIFFERENTIAL PRESSURE CONTROL VALVE (DPCV) & …
· • adjust the DPCV until the required flow rate is measured at the Companion Valve. If too much of the DPCV adjustment is used to reach the required flow rate, the DPCV should be backed off and some of the excess pumped head removed using the regulating feature on the Companion Valve. The DPCV can then be used to reduce flow rate to the design ...