Dynamic balance electric regulating two-way valve

Overview

Our company's dynamic balance electric regulating valve is a new generation product that is different from traditional electric regulating valves. It is an integrated product of dynamic balance and electric regulation. As shown in the following figure, in a variable flow system with large load fluctuations, when the system pressure changes, the pressure difference (P1-P3) between the two ends of the dynamic balance electric control valve also changes accordingly:

When the inlet pressure P1 increases, (P1-P2) increases, and the electric valve spool moves upward, reducing the opening between P1 and P2 and lowering the spool pressure P2; When the inlet pressure P1 decreases, (P1-P2) decreases, and the electric valve spool moves downward, increasing the opening between P1 and P2 and raising the spool pressure P2. Therefore, no matter how the system pressure changes, the pressure difference between P2 and P3 remains constant through the regulating effect of the electric valve core. Therefore, this type of dynamic valve has strong anti-interference ability and dynamic balancing function;

When the straight stroke electric actuator receives a control signal to move the valve shaft up and down (or the angular stroke electric actuator receives a control signal to rotate the valve shaft up and down), the opening between P2 and P3 also changes accordingly. Due to the fact that regardless of how the system pressure difference (P1-P3) changes, the pressure difference (P2-P3) between P2 and P3 remains constant, the water flow rate delivered is constant for any opening position, and the actual flow characteristic curve of the electric control valve is consistent with its ideal flow characteristic curve without deviation. Therefore, this electric regulating valve has better regulating characteristics than traditional electric regulating valves.