Moog AR‑08AE‑14293 Servo Valve

Product Description

The AR‑08AE‑14293 is a Moog two‑stage electro‑hydraulic flow control servo valve with mechanical feedback. It converts low‑current electrical command signals into precise hydraulic flow output to drive hydraulic actuators. The valve adopts a compact metal body design, built‑in torque motor and flapper nozzle pilot stage, and provides high dynamic response and repeatability. It is widely used in closed‑loop position, speed and force control for high‑precision industrial hydraulic systems.

Product Functions

• Convert 0‑200mA or ±current electric control signal into proportional hydraulic flow
• Two‑stage pilot hydraulic amplification with mechanical feedback for stable closed‑loop control
• Precise continuous flow regulation to control cylinder speed and direction
• High frequency response to meet fast dynamic positioning requirements
• Resist pressure fluctuation and maintain stable output flow under load changes
• Work with hydraulic cylinders and PLC/controller to realize automatic position control

Application Scenarios

• Steel rolling mill hydraulic gap and tension control systems
• Material fatigue test machines and force‑controlled test benches
• Injection molding machines and metal forming hydraulic presses
• Aerospace component simulation test equipment
• Power plant steam turbine hydraulic actuator governing systems
• High‑precision automated machinery closed‑loop hydraulic control skids

Common Problems

• Valve jamming and slow response：hydraulic oil contamination, dirt stuck in nozzle or spool
• Flow drift and zero offset：torque motor aging, zero point drift or oil viscosity change
• No hydraulic output with electric command：coil open circuit, damaged pilot stage or blocked filter
• Unstable actuator hunting and oscillation：oil pollution, feedback mechanism wear or improper gain setting
• Internal leakage increasing：spool and sleeve wear after long‑time operation
• Intermittent control failure：connector loose, wiring aging or electromagnetic interference