MOOG D661-4697C servo valve from the USA is in stock.
$328.17
The American MOOG servo valve is a two-stage valve. The first stage is a nozzle-baffle type, whose outlet pressure is controlled by a control signal. The second stage is a spool valve type, which actuates the pressure from the control stage to the brake cylinder. When there is no signal, the pressure of the oil outlet of the pressure nozzle causes the servo valve baffle to rest against the return oil nozzle. At this time, the oil pressure at the pressure port acts on the spool valve core, directly connecting the brake port and the metering oil port. The pressure at the brake port is equal to the metering oil pressure controlled by the pilot. When the wheel angular velocity detects a deviation between the taxiing speed and the reference taxiing speed, the torque motor receives the deviation electrical signal.
Brand: MOOG (USA)
Applications: Chemical, Petroleum, Mining, Road/Rail/Marine, General Industry
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, quiet operation, durability, and minimal maintenance, 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 offer advantages over electro- and pneumatic actuators, including faster response, higher power output per unit weight, smoother transmission, and stronger anti-interference capabilities. Conversely, electrical components are often used for signal transmission and calibration in servo systems. Therefore, modern high-performance servo systems also employ electro-hydraulic methods, making servo valves essential components in 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 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 flow, and increasing the back pressure on the right side; simultaneously, it reduces the throttling effect of the left nozzle, increasing flow 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 via 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 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.
The MOOG servo valve is a key component in electro-hydraulic servo control developed by MOOG Corporation. It is a hydraulic control valve that receives analog electrical signals and outputs modulated flow and pressure accordingly. Electro-hydraulic servo valves have advantages such as fast dynamic response, high control accuracy, and long service life, and are widely used in electro-hydraulic servo control systems in aviation, aerospace, shipbuilding, metallurgy, chemical and other fields.
D661-4652
D661-4572C
D661-4573C
D661-4858
D661-4732-P80FAA-04NEM2-0
D661-4436C
D661-4800
D661-4866
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
D661-4055(P80HABF7VSX2-A)
D661-4640
D661-4636
D661-4059
D661-4060 D661-G35JOAA4NSX2HA
D661-4506C/G23JOAA6VSX2HA
D661-4315C
D661-4577C
D661 G60HOAO4NSD2HA
D661Z571C/H09HOGBENCO7
D661-571C/H09HOGBENCO9
D661-4506C
D661-431D-4
D661-4444C/G60JOAA6VSX2HA
D661-4384C
D661-4469C
D661-4341C
D661-4731/P80HABW5NSX4-O
D661-4195/P80JABF6VSX2-A D661-4072/P60HAAF5VSX2-A
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)
Our company maintains a large inventory, with standard parts readily available. To better serve our customers across various industries, we also distribute other spare parts, with professional sourcing channels and reasonable prices.
Our products are widely used in industrial machinery, machine tools, plastics machinery, shoe machinery, brick machinery, metallurgy, mining, chemical industry, papermaking, coal mining, shipbuilding, power generation, construction machinery, environmental protection machinery, and many other fields.
Short delivery time, low prices! New and existing customers are welcome to inquire and purchase!
