the heating network is initially adjusted, the locking device is fully opened, and the valve is adjusted according to the adjustment method of the self-operated flow control valve, so that the flow of the heat users quickly reaches the equilibrium state, and the advantages of the self-operated flow control valve in the balance control of the heating network are brought into play. Then the locking device is started, and the valve becomes a static balance valve with variable flow performance. Because the resistance of each heat user is balanced, when the circulating pump is adjusted with variable flow rate, the flow rate of each user will change in equal proportion and remain in a balanced state. The constant flow of the self-operated flow control valve and the variable flow of the static balance valve can be converted according to specific needs. After household metering, it can be used as a self-operated differential pressure control valve by connecting the pressure pipe.Copyright © 1998-2025 Kelly Valve Co., Ltd. All rights reserved.