MOOG servo valve D661-4380E in stock

Brand: MOOG (USA)

Applications: Chemical, Petroleum, Mining, Road/Rail/Marine, Comprehensive

MOOOG 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 and into the oil tank via the return port. 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

D661-4380E

D661-4157B

D661 G45HOAA4VSX2HA

D661-4830/P60HAAM7NSX2-A

D661-8006

D661-4539C /G35JOAA5VSX2HA

D661-4539C /G35JOAA5VSX2HA

D661-4539C

D661-4538C/G35JOAA4VSX2HA

D661-4385C/G60KOAA4VSX2HA

D661-XXXX(4551)/G30HOAA5VSD2HO

D661-XXXX/G30HOAA5VSD2HO

D661-4651(G35JOAA6VSX2HA) D661-4651/G35

D661-4651(G35JOAA6VSX2HA)

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

D661-4627A

D661-4455E

D661-4061

D661-4697 D661-4469C/G75JOAA6VSX2HA

D661-431D-5

D661-4086

D661-5009

D661-4697C

D661-4731 Our company primarily deals with European and American brands, and can source brands from any European country. For example, our key German brands include: FESTO, BURKERT, BOSCH-REXROTH, IFM, TURCK, P+F, BALLUFF, SICK, HIRSCHMAN, MURR, HYDAC, GSR, CROUZET, E+H, PILZ, HAWE, SIEMENS, STAUFF, EUCHNER, EMG, UNIVER, ATOS, NORGREN, and approximately 500 other European brands of varying sizes. We have cooperative relationships with approximately 500 other European brands.

We also have companies in the US, and cooperate with approximately 200 brands, including ASCO, Vickers, MAC, Parker, MOOG, Fairchild, Denison, Ross, UE, MTS, and GEFRAN.

We have distribution rights for Japanese brands, such as CKD, TOYOOKI, NACHI, DAIKIN, SMC, KOGANEI, TACO, NOK, and TOKIMEC.

Our business scope includes:

Hydraulic components:

Solenoid directional valves, directional valves, check valves, stack valves, relief valves, counterbalancing valves, proportional valves, manual directional valves, flow valves, pressure reducing valves,

Throttle valves, pressure control valves, back pressure valves, filling valves, flow dividers, shuttle valves, pressure relays, cartridge valves, pneumatic valves, piston pumps,

Gear pumps, vane pumps, cycloidal hydraulic motors, oil coolers, hydraulic cylinders, etc.;

Pneumatic components:

Air source processor assemblies, filters, pressure regulating valves, oil feeders, solenoid valves, pneumatic valves, angle seat valves, manual valves, hand-operated valves, foot valves,

Mechanical valves, check valves, vacuum generators, cylinders, magnetic switches, shock absorbers, pressure gauges, quick couplings, floating couplings,

Pressure gauge switches, water coolers, electric positioners, PU tubing, vacuum suction cups, oil filters, vibrators;

Electrical components:

Relays, sensors, converters, proximity switches, encoders, programmable logic controllers (PLCs); The company maintains a large inventory, with standard parts readily available. To better serve customers across various industries, the company also distributes other spare parts, utilizing professional sourcing channels and offering reasonable prices.

The company's products are widely used in industrial machinery, machine tools, plastics machinery, shoe machinery, brick machinery, metallurgy, mining, chemical industry, papermaking, coal industry, shipbuilding, power generation, construction machinery, environmental protection machinery, and many other fields.