Product Introduction: This is a high-performance proportional flow control servo valve belonging to the Moog D661 series. It has an ultra-large flow valve body flow channel design, and the pilot stage can be externally controlled and drained using ports X and Y. The valve adopts a fail-safe design, which ensures that the spool can still operate in cases such as short circuits, power failures, or oil source pressure loss, thus ensuring system reliability.
Hydraulic Data: The rated flow per land at a pressure difference of 35 bar (500 psi) ranges from 20 to 200 l/min (5.3 to 52.8 gpm), the maximum flow is 250 l/min, the maximum operating pressure of ports P, A, and B is 350 bar (5,000 psi), the maximum operating pressure of port T with internal Y is 210 bar (3,000 psi), and the maximum operating pressure of port T with external Y is 350 bar (5,000 psi). The step response time for a 0 to 100% step is 6.5 to 18 ms.
Electrical Data: The pilot stage adopts SMD technology and a 24 V DC power supply. The supply voltage of the entire valve is 24 V DC (18 to 32 V DC), the rated signal options include ±10 V, ±10 mA, and the electrical connector is 6 + PE.
Functional Features: The pilot stage uses SMD technology and a 24 V DC power supply, which improves the reliability and stability of the valve. The smaller spool drive area not only improves the dynamic response but also allows a smaller pilot stage flow to drive the spool to move quickly, achieving higher control accuracy. As a two-stage structure in the D661 series, it is suitable for occasions requiring high resolution and high dynamic response under small signals.
Application Scenarios: It is applicable to high-precision control occasions in industrial production, such as the thickness control of hot-rolled strip steel, the position control of the core shaft of the coiler, and other processes that require precise flow control.
