MOOG J761-003A servo valve from the USA is in stock.

Brand

MOOG/American Moog

Application Areas

Medical & Health, Environmental Protection, Food/Agricultural Products, Chemical, Petroleum

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

MOOG servo valves are mainly used as actuators in electro-hydraulic servo systems (see Hydraulic Servo Systems). In servo systems, hydraulic actuators, compared to electro- 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 Valve Working Principle

MOOG servo valves consist of a permanent magnet torque motor, nozzle, baffle, valve core, valve sleeve, and control chamber. When current is applied to the input coil of the servo valve, 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, and the hydraulic pressure acting on the valve core is balanced by the spring force. Therefore, in a balanced state, 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 mainly refer to electro-hydraulic servo valves, which, after receiving an electrical analog signal, output modulated flow and pressure accordingly. It is both an electro-hydraulic conversion element and a power amplification element, capable of converting a small-power, weak electrical input signal into a large-power hydraulic energy (flow and pressure) output.

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 primarily refer to electro-hydraulic servo valves, which receive analog electrical signals and 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.

MOOG servo valves

Hydraulic servo valves are actuators in servo systems that convert electrical signal inputs into high-power pressure or flow/pressure signal outputs. They are electro-hydraulic conversion and power amplification elements. Servo valves have high sensitivity and fast response, capable of converting very small electrical signals (e.g., 10 mA) into large hydraulic power (e.g., tens of horsepower or more), and can drive various types of loads. In the past, hydraulic amplification devices such as nozzle baffle valves, jet pipes, or spool valve servo motors were all included in the category of servo valves. Since the 1970s, servo valves have generally referred only to electro-hydraulic servo valves.

MOOG Servo Valve Principle

A typical servo valve consists of a permanent magnet torque motor, nozzle, baffle, valve core, valve sleeve, and control chamber (see figure). 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 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 you lose:

J761-003A

J761-002A

J761-004A

J761-001

J072-110

J072-056

J866-0009

J869-1000A

J869-0037A

J869-1001A

J869-1002A

D682-4002

D682-4056

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 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