MOOG servo valve D661-4020B in stock

Brand

MOOG/American Moog

Application Areas

Petroleum, Mining, Energy, Electrical, General

MOOOG Servo Valve Working Principle

The MOOOG 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.

Our company maintains a large inventory of MOOG servo valves. New and existing customers are welcome to contact us for pricing, delivery times, and product specifications. We are committed to providing you with the best service and ensuring your satisfaction!

Compared to other brands of servo valves, MOOG servo valves offer advantages such as energy saving, zero pollution, strong environmental adaptability, low operating noise, durability, and minimal maintenance requirements, making them suitable for industries with high energy, performance, and environmental requirements.

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 frequently used in servo systems for signal transmission and characteristic correction. Therefore, modern high-performance servo systems also employ electro-hydraulic methods, making servo valves essential components of such systems.

MOOG servo valves primarily refer to electro-hydraulic servo valves. Upon receiving an electrical analog signal, they output modulated flow and pressure. They function as both electro-hydraulic conversion elements and power amplifiers, converting low-power, weak electrical input signals into high-power hydraulic energy (flow and pressure) output.

MOOG was founded over fifty years ago, initially designing and supplying aircraft and components. Today, the company's motion control technology is widely used in numerous markets and applications, including civil aircraft cockpits, wind turbines, Formula One racing, and medical infusion systems, effectively improving the performance of related products. The company's history originates from its founder, William C. Moog, an inventor, entrepreneur, and visionary. In 1951, Bill Moog successfully developed the electro-hydraulic servo valve, a device that converts weak electrical pulses into precise and powerful motion. In July 1951, Bill Moog, the Art brothers, and Lugheye rented a corner of the abandoned Proner Airport in East Aurora, New York, and founded the MOOG Valve Company.

Moog is a global designer, manufacturer, and integrator of precision motion control products and systems. Moog's high-performance systems control commercial aircraft, satellites and spacecraft, launch vehicles, industrial machinery, wind power, marine applications, and medical equipment.

MOOG Servo Valve In-Stock List:

D682-4209

D682-4003A

D672-0006-0000

D672-0014-0001 (D672-0002-0001)

D683-4323

D683-4323N03HDZO4VSM2-O

D791-4020/S16JOQA6USX2-A

D791-4048/S10JXQB6VSX2-B

D791-4026-S25JOQB6VSS2-B

D791-4028/S25JOQB6VSX2-B

D791Z140B-6 /S16JXQOFVSB0

D791-5009 D792-4026

D792-4023

D792-4012

D792-5034

D792-4019

D791-5008/S16JOPA5USX0-P

D791-5028/S25JORO6USA0-P

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 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, Helón (Norgren)

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