Product Overview

The Moog D136-001-007 is a high-performance,servo-controlled proportional directional control valve from Moog’s industrial and mobile electrohydraulic product line.It belongs to the D136 series,which features two-stage,jet-pipe servo valve technology known for exceptional reliability,contamination tolerance,and dynamic response—making it ideal for demanding applications in steel mills,test&simulation systems,power generation,marine propulsion,and heavy industrial machinery.

Unlike conventional spool valves,the D136 uses Moog’s patented jet-pipe first stage,which is significantly more resistant to fluid contamination than flapper-nozzle designs—reducing maintenance costs and increasing uptime in harsh environments.The“-001-007”suffix denotes a specific flow rating,electrical connection,and feedback configuration,typically indicating a±10 V command input with internal LVDT position feedback for closed-loop spool control.

This valve provides precise,fast,and repeatable control of hydraulic cylinder or motor direction and speed,enabling high-fidelity motion in critical processes such as rolling mill gap control,fatigue testing actuators,or ship rudder steering.

Technical Specifications(Typical for D136-001-007)

Parameter Value

Manufacturer Moog Inc.(Industrial Group)

Model D136-001-007

Valve Type Two-stage,jet-pipe electrohydraulic servo valve

Function 4-way,3-position proportional directional control(spring-centered)

Flow Rating(atΔp=70 bar)Approx.25–30 L/min(exact value depends on submodel;–001 often=28 L/min)

Maximum Operating Pressure 315 bar(4,568 psi)

Spool Control Closed-loop via internal LVDT(Linear Variable Differential Transformer)

Command Signal±10 V DC(differential or single-ended)

Feedback Output±10 V spool position signal(for diagnostics and system monitoring)

Response Time<10 ms(typical step response)

Hysteresis<0.5%of rated current

Linearity<1%(with LVDT feedback active)

Electrical Connection MS3106A-14S-2P or equivalent 14-pin military circular connector

Fluid Compatibility Mineral oil(ISO VG 32–46),phosphate ester(fire-resistant),or approved water-glycol

Filtration Requirement ISO 4406 16/14/11 or better(despite high contamination tolerance)

Operating Temperature–20°C to+70°C(fluid temperature)

Certifications CE,RoHS;compliant with IEC 60534(control valves)

⚠️Note:The exact flow coefficient(Kv),null bias,and null shift are calibrated at factory and documented on the test certificate(supplied with new units).Always refer to the valve’s data sheet code plate for precise performance curves.

Key Features&Advantages

✅Jet-Pipe First Stage:

Far more tolerant to fluid contamination than flapper-nozzle valves—ideal for steel plants,foundries,or mobile hydraulics where filtration is challenging.

✅Integrated LVDT Feedback:

Enables true closed-loop spool positioning,compensating for wear,temperature drift,and pressure imbalances—ensuring consistent performance over time.

✅High Dynamic Response:

Capable of>100 Hz bandwidth in optimal conditions—suitable for real-time simulation and active vibration control.

✅Fail-Safe Options:

Spring-centered design returns spool to neutral on power loss(standard).Optional fail-safe springs or manual override available in other variants.

✅Robust Industrial Design:

Hardened components,stainless steel jets,and rugged housing ensure long life in high-vibration,high-pressure environments.

Typical Applications

Steel Mill Equipment:Rolling mill roll gap control,edger positioning.

Test Systems:Multi-axis structural load frames,seismic simulators,aircraft landing gear testers.

Marine&Offshore:Rudder actuation,heave compensation,winch control.

Power Generation:Turbine inlet valve control,hydro governor systems.

Heavy Machinery:Press brakes,forging hammers,extrusion presses.

Pinout&Electrical Interface(Typical MS Connector)

Pin Function

A,B±10 V Command Input

C Signal Ground

D,E LVDT Excitation(±5 V AC,~2.5 kHz)

F,G LVDT Output(spool position)

H Case Ground

J,K Optional coil monitoring or redundancy

🔌Always verify pinout against the specific valve’s test report—Moog may customize wiring per order.

Installation&Maintenance Guidelines

Mounting:Install in any orientation,but avoid direct exposure to water spray or extreme radiant heat.

Hydraulic Plumbing:Use clean,flushed lines;install suction strainer and return filter(≤10µm).

Electrical Shielding:Use double-shielded cable,grounded at controller end only.

Null Adjustment:Do not adjust mechanical null screws unless performing full recalibration with Moog service tools.

Diagnostics:Monitor LVDT feedback vs.command—a growing offset indicates contamination or wear.

Related Moog Products

Model Description

D136-002-007 Higher flow version(~55 L/min)

D633/D663 Direct-drive(single-stage)servo valves(lower flow,faster response)

G761/G762 Legacy two-stage valves(flapper-nozzle type)

Moog Axis Controller(MAC)Digital servo valve driver with auto-tuning

Product Guarantee

Every Moog D136-001-007 we supply is 100%genuine,sourced from Moog-authorized distribution,OEM surplus,or certified refurbished stock.Each unit includes(or can be provided with):

Original factory test certificate(flow,hysteresis,frequency response)

Calibration data

Connector shell and mating instructions

Backed by a 12-month warranty,our valves are ready for integration into your most demanding hydraulic systems.We also offer compatibility checks with your amplifier(e.g.,Moog 28x,Bosch Rexroth VT-MSPA)and replacement recommendations if obsolete.

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