Self-operated flow balancing valve BZL47F

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Self-operated Flow Balancing Valve BZL47F

A balancing valve is a special-function valve with excellent flow characteristics, featuring valve opening indicators, opening locking devices, and pressure measurement ports for flow determination. Using **intelligent instruments, input the valve model and opening value, and the flow rate through the balancing valve can be directly displayed based on the measured differential pressure signal. By installing appropriately sized balancing valves at each branch and user inlet and performing a one-time adjustment with **intelligent instruments, the flow rate for each user can be set to the desired value.

Balancing valves function under hydraulic conditions to achieve dynamic and static balance regulation. Examples include static balancing valves and dynamic balancing valves.

Static balancing valves, also known as manual balancing valves, digital locking balancing valves, or two-position regulating valves, adjust flow by changing the gap (opening) between the valve core and seat, thereby altering the flow resistance. Their purpose is to manage system resistance, ensuring that the new flow rate is distributed according to the design-calculated proportions. Each branch adjusts proportionally simultaneously, meeting the flow requirements under partial load conditions based on current climate needs, thus achieving thermal balance.

Dynamic balancing valves include dynamic flow balancing valves, dynamic pressure differential balancing valves, and self-operated differential pressure control valves.

Dynamic flow balancing valves, also known as self-operated flow control valves, self-operated balancing valves, constant flow valves, or automatic balancing valves, automatically adjust the resistance coefficient based on changes in system conditions (differential pressure). Within a certain differential pressure range, they effectively maintain a constant flow rate. When the differential pressure across the valve increases, the valve automatically closes slightly to prevent an increase in flow. Conversely, when the differential pressure decreases, the valve opens wider to maintain a constant flow. However, if the differential pressure falls below or exceeds the valve's normal operating range, it cannot provide additional pressure head, and the flow may deviate from the set value when the valve is fully open or closed.

Dynamic pressure differential balancing valves, also known as self-operated pressure differential control valves, differential pressure controllers, pressure-stabilizing variable synchronizers, or pressure differential balancing valves, use differential pressure to adjust the valve opening. By leveraging changes in the pressure drop across the valve core, they compensate for variations in pipeline resistance, ensuring that the differential pressure remains largely unchanged under changing conditions. Within a certain flow range, they effectively maintain a constant differential pressure in the controlled system. When the system's differential pressure increases, the valve automatically closes slightly to ensure the controlled system's differential pressure remains stable. Conversely, when the differential pressure decreases, the valve opens wider to maintain constant differential pressure.

Self-operated differential pressure control valves automatically keep the valve plug closed within the control range. When the differential pressure across the valve exceeds the preset value, the valve plug opens automatically and adjusts the opening under the action of the pressure-sensing membrane to maintain a relatively constant differential pressure across the valve.

Self-operated Flow Balancing Valve BZL47F utilizes the medium's own pressure changes for self-regulation, maintaining a balanced flow through the controlled system. It features flow indicators and allows online adjustment, making it suitable for flow control of non-corrosive media in heating and air conditioning systems. After a one-time test adjustment, the system flow automatically stabilizes at the preset value. This valve offers accurate flow regulation, simple operation, stable performance, reliability, and a long service life.

Main Technical Parameters of Self-Operated Flow Balancing Valve

Main Connection Dimensions of Self-Operated Flow Balancing Valve