MOOG D661-4598C servo valve from the USA is in stock.

Brand

MOOG/American Moog

Application Areas

Chemical, Petroleum, Mining, Energy, Road/Rail/Marine

MOOG Servo Valve Working Principle

The MOOG servo valve consists of a permanent magnet torque motor, nozzle, baffle, valve core, valve sleeve, and control chamber. When current is applied to the input coil, the baffle moves to the right, strengthening the throttling effect of the right nozzle, reducing the flow rate, and increasing the back pressure on the right side; simultaneously, it reduces the throttling effect of the left nozzle, increasing the flow rate, and decreasing the back pressure on the left side. The forces at both ends of the valve core become unbalanced, causing the valve core to move to the left. High-pressure oil flows from S to C2, delivering it to the load. Load return oil flows through C1 through the return port and enters the oil tank. The displacement of the valve core is proportional to the input current of the torque motor. The hydraulic pressure acting on the valve core is balanced by the spring force; therefore, in equilibrium, the differential current of the torque motor is proportional to the displacement of the valve core. If the input current is reversed, the flow rate is also reversed. The table shows the classification of servo valves.

MOOG servo valves are key components in electro-hydraulic servo control systems developed by MOOG Corporation. They are hydraulic control valves that receive analog electrical signals and output modulated flow and pressure accordingly. Electro-hydraulic servo valves offer advantages such as fast dynamic response, high control precision, and long service life, and are widely used in electro-hydraulic servo control systems in aerospace, shipbuilding, metallurgy, and chemical industries.

MOOG servo valves are primarily used as actuators in electro-hydraulic servo systems (see Hydraulic Servo Systems). In servo systems, hydraulic actuators, compared to electric and pneumatic actuators, offer advantages such as faster response, higher power output per unit weight, smoother transmission, and stronger anti-interference capabilities. On the other hand, electrical components are often used for signal transmission and characteristic correction in servo systems. Therefore, modern high-performance servo systems also employ electro-hydraulic methods, and servo valves are essential components in such systems.

MOOG servo valves mainly refer to electro-hydraulic servo valves, which receive analog electrical signals and output modulated flow and pressure accordingly. It functions as both an electro-hydraulic conversion element and a power amplifier, capable of converting low-power, weak electrical input signals into high-power hydraulic energy (flow and pressure) output.

MOOG Servo Valve In-Stock List

D661-4652

D661-4572C

D661-4573C

D661-4858

D661-4732-P80FAA-04NEM2-0

D661-4436C

D661-4800

D661-4866

D661-P80HABF6VSX2-B

D661-4436C

D661-4380EG60H0CA5VSX2HA

D661-4389E

D661-4496E

D661-4479C

D661-4697C

D661-4598C

D661-4444C/G60JOAA6VSX2HA

D661-4027 D661-4627AG75HOA06VSP2HA

D661-4782

D661-4023

D661-4023

D661-4085P60HAAF6VSX2B

D661—4627A G75HOAO6VSP2H.A

D661-4341C

D661-4746/P30HAAD6VSX2-B

D661-4472CG45JOAB6VSX2HA

D661-4594C The company mainly deals with European and American brands and can source brands from any European country. For example, our key German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi