Product Short Description
Product Name
MOOG D0156H524410001 servo or proportional valve
Product Introduction
Public Moog technical publications do not resolve the full suffix D0156H524410001 in a single standard datasheet. The unit is addressed here through Moog servo and proportional valve platform characteristics. The nameplate must confirm port size, pressure rating, flow rating, electrical interface, seal material and mounting pattern.
Description
Technical Specifications
Command signal: analog plus or minus 10 V or 4 to 20 mA on electronic-feedback versions; pilot-stage current on mechanical-feedback versions
Control variable: spool position, volumetric flow, pressure or combined flow and pressure according to valve function
Operating philosophy: output proportional to input command through closed-loop spool feedback
Hydraulic supply: pressure rating and maximum flow confirmed from nameplate
Response: high dynamic response with low hysteresis on Moog servo platforms
Feedback type: mechanical feedback or integrated electronic feedback according to build
Electrical interface: analog cables, digital configuration port or fieldbus on smart valve versions
Functional Features
Spool-in-bushing construction on servo platforms provides high positioning accuracy.
Spool-in-body construction on proportional platforms supports higher nominal flow.
Electric zero adjustment on equipped versions simplifies commissioning.
Spring-return fail position returns the spool to a defined state on loss of signal in designated safety configurations.
Application Scenarios
Hydraulic press control, injection molding, metal forming, test rigs, flight simulators, turbine control, fatigue testing and high-precision actuator positioning.
Material Composition
Valve body in aluminum or steel according to size and pressure class.
Spool and bushing in hardened stainless steel for wear resistance.
Seals in nitrile, fluorocarbon or other media-compatible elastomers.
Electrical connector housing in sealed industrial grade material.
Structural Characteristics
Two-stage or single-stage hydraulic architecture with torque motor or piezoelectric pilot, position transducer, manual zero adjustment and standardized mounting interface defined by nameplate.
Working Principle
The electronic or mechanical controller compares the command signal with the actual spool position. Any deviation produces a drive signal to the torque motor or pilot stage, moving the spool until output flow or pressure matches the command value.
Installation Requirements
Install according to the port pattern and bolt torque stated on the nameplate.
Use hydraulic fluid filtered to the Moog cleanliness class required for the valve.
Provide stable pilot supply voltage for electronic-feedback versions.
Route signal cables separated from power and hydraulic hose runs.
Usage Precautions
Confirm hydraulic oil type, temperature range and filtration before operation.
Never energize the solenoid or electronics before verifying supply polarity.
Perform zero calibration only with the system in a safe, depressurized state.
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