MOOG servo valve D691-072D in stock

Brand

MOOG/American Moog

Application Areas

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

MOOG Piston Pumps, MOOG Controllers, Moog Servo Valves, Moog Piston Pumps, Moog Controllers

MOOG D634-319C Servo Valve

MOOG servo valves are mainly used as actuators in electro-hydraulic servo systems (see Hydraulic Servo Systems). In servo systems, hydraulic actuators, compared to electric and pneumatic actuators, have 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 adopt electro-hydraulic methods, and servo valves are essential components of such systems.

MOOG servo valves mainly refer to electro-hydraulic servo valves, which, after receiving electrical analog signals, output modulated flow and pressure accordingly. They are both electro-hydraulic conversion elements and power amplification elements, capable of converting low-power, weak electrical input signals into high-power hydraulic energy (flow and pressure) output.

Working Principle of MOOG Servo Valve

The MOOG servo valve consists of a permanent magnet torque motor, nozzles, baffles, 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. The load return oil flows through C1 and through the return port into 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.

G122-202

G122-202A001

G040-123-001

G040-124-002 (G040-124-001)

G122-829-001

E129-018-002

NF-123-204A1

M040-119 100MA-10MA

G15JOAA6VSX2HA

M-CEE63B6BXU/KOB

M-CEE32B6BXT/KOB

M-CEE40B6BXT/KOB

RSE80BT6T7WX3/S11-XEB16842-000-01

G771K202A

G771K200A

G771K203

G771K208 G772K240A

R08K01FOVXP2

S63JOGA4VPL

G424-806-L40

G464-904A

G414-404A

G404-010A

D765-1099

D765-E1096/S63JXGMEUSXO

D765-1633-5

D765-1116/H10JOFMEVRA0

D651-235F-5/P23XXGMCN6A0X

A67999-200

A67999-065

D062-512F

D651-314D (Old model D651-314)

D691-2085G/Q30FRAAEVVS2 D691-2096G-4/Q30XBAAEVES2N

D957-2003-10

0514 600359

D957-2003-10 HPR18A7 RKP140TM28R1Z00

D956-2017-10 HPR18A1RKP100TM28J1Y00

D951-0013-10 HPR18A1 RKP019SM28F2Y00 DS1

D954Z8003-10/HZ-R18B1-RKP063TC21E4Z00DS1

D956Z8003-10/HZ-R18B1-RKP100TC21E4Z00DS1

D954-2065-10 D951-0013/A

D951-2115/A

D951-2033-10

D954-2045/C

D635-671E/ R02FB1F0NSM2M

D635-114E/R08DB1F0NSS2M

D635-119E/RXXFX1F0NSS2M

D635-640E/R04XB1F0NSM2M

D635-640E/R04XB1F0NSM2M

D691-072D-5/Q08FBAABNVS0N

D765-1632 (D769H632A)

D656-734D/P30FX3BCN0Y0T D656-709D/P20FB3BCN0Y0T

D691-Z2134G/Q80FUAFAVVS2N

D635-692E/R04DX1F0NSS2M

D691Z2086G/Q80XUAAAVVS2N

Company Development History

In the 1970s, MOOG entered the growing market for injection and blow molding process control technology. Due to its significant involvement in the US space program, the company won a contract to supply hardware for the Space Shuttle. The Space Shuttle made its maiden flight in 1981, utilizing the company's pioneering fly-by-wire control technology.

moog servo valves

In 1988, Robert T. Brady, president of MOOG's aircraft division, was appointed CEO. Sales reached $282 million in 1989. The company established operations in India in the mid-1990s. Our major acquisition was the purchase of Allied Signal's aircraft business in Torrance, California. By the end of 1999, the company's revenue exceeded $630 million.

In 2001, MOOG won a $50 million contract to refurbish the Space Shuttle and moved from the American Stock Exchange to the New York Stock Exchange. We are the designer and supplier of flight control systems for Lockheed's F-35 fighter jet and a major supplier of flight control components for Boeing's 787 Dreamliner program.

In 2004, the company's revenue surpassed $900 million, and we completed another major acquisition, acquiring Litton Poly-Scientific and renaming it MOOG Components Group. The company's annual sales exceeded $1 billion.

Company History

In the 1970s, MOOG entered the growing market for injection and blow molding process control technologies. Due to its significant involvement in the US space program, the company won a contract to supply hardware to the Space Shuttle. The Space Shuttle first flew in 1981, utilizing our pioneering fly-by-wire technology.

In 1988, Robert T. Brady, president of MOOG's aircraft division, was appointed CEO. Sales reached $282 million in 1989. The company established operations in India in the mid-1990s. Our major acquisition was the purchase of Allied Signal's aircraft business in Torrance, California. By the end of 1999, company revenue exceeded $630 million.

In 2001, MOOG received a $50 million contract for the Space Shuttle refurbishment and moved from the American Stock Exchange to the New York Stock Exchange. We are the designer and supplier of flight control systems for Lockheed's F-35 fighter jet and a major supplier of flight control components for Boeing's 787 Dreamliner program.

In 2004, the company's revenue exceeded $900 million, and it completed another large-scale acquisition, acquiring Litton Poly-Scientific and renaming it MOOG Components Group. The company's annual sales exceeded $1 billion.

The company primarily deals with European and American brands and can source brands from any European country. For example, its key German brands include: BURKERT, DEMAG, HAWE, AVENTICS, HYDAC, PILZ relays, FESTO, IFM door 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