KVME11201 Danfoss EDC Servo Valve 42 Series Sauer-Danfoss

I. Product Overview

This product series comprises Danfoss (formerly Sauer-Danfoss) Electric Displacement Control (EDC) modules and proportional servo valves—the core components of displacement control systems for Danfoss S90 series variable piston pumps, S42 hydrostatic transmissions, and K3V/K5V series hydraulic pumps. The portfolio includes KVME Series EDC proportional servo valves (42 Series), KVEBB Series complete EDC control modules, and KVEBS Series EDC control modules—providing a complete electro-hydraulic servo solution from pilot pressure control to main pump displacement regulation.

Product lineup overview:

• KVME11201 and KVME11204 are 42 Series EDC proportional servo valves, compatible with S42 hydrostatic transmissions and K3V/K5V hydraulic pumps. KVME11204 also corresponds to Bobcat equipment material number 6678339

• KVEBB1404 is an EDC control module specifically designed for S90 series 130cc displacement piston pumps, featuring dual coil design with integrated MCV116G4204 (Type 4) pilot valve

• KVEBB1802 is an EDC control module specifically designed for S90 series 180cc displacement piston pumps

• KVEBS0799 is an EDC control module specifically designed for S90 series 75cc displacement piston pumps

M46-2773 is the identification code for Danfoss M46 series hydraulic motors/pumps, which together with the above EDC control modules constitute a complete control solution for Danfoss closed-circuit hydraulic systems.

Manufactured to strict Danfoss OEM specifications, all products offer 100% direct interchangeability with original parts—no modifications required for installation. Every unit undergoes 100% application-condition simulation testing—comprehensive verification of pressure, flow, response characteristics, and leakage on dedicated test benches against published specifications. Perfect OEM replacement for Danfoss/Sauer-Danfoss original parts, ideal for hydraulic system repairs and preventive maintenance.

II. Technical Specifications 

KVME11201 – 42 Series EDC Proportional Servo Valve

• Model: KVME11201

• Brand: Danfoss (formerly Sauer-Danfoss)

• Product Series: EDC 42 Serie

• Product Type: Electric displacement control proportional servo valve

• Compatible System: S42 hydrostatic transmission

• Connection: 42 Series MS connector (DE1A2)

• Weight: Approx. 1.0 kg

• Control Method: Proportional electric displacement control

• Working Pressure Range: 20-30 MPa

KVME11204 – 42 Series EDC Proportional Servo Valve

• Model: KVME11204

• Brand: Danfoss (formerly Sauer-Danfoss)

• Product Series: 42 Series EDC

• Product Type: Electric displacement control proportional servo valve

• Material Number: 4510048

• Corresponding Bobcat Material Number: 6678339

• Compatible System: S42 hydrostatic transmission

• Connector: 4-pin, mounting bolt M6×60

• Weight: 4.16 – 4.57 kg

• Control Method: Proportional electric displacement control

• Country of Origin: USA

KVEBB1404 – EDC Control Module for S90 130cc Pump

• Model: KVEBB1404

• Brand: Danfoss (formerly Sauer-Danfoss)

• Compatible Pump: S90 series variable piston pump, 130cc displacement

• Control Method: Electric Displacement Control (EDC)

• Coil Configuration: Dual coil

• Pilot Valve: MCV116G4204 (Type 4)

• Assembly: Complete EDC control module (SVC KIT-EDC)

• Weight: Approx. 4.5 kg

• Dimensions (L×W×H): 190mm × 250mm × 200mm

• Country of Origin: USA

• Service Kit: 8510120 SVC KIT-EDC

MCV116G4204 – Pressure Control Pilot Valve (PCP Type 4)

• Model: MCV116G4204

• Brand: Danfoss

• Product Type: Pressure Control Pilot (PCP), Type 4

• Valve Type: Single-stage, standalone closed-loop pressure control valve

• Actuation: Torque-motor actuated

• Valve Configuration: Double-nozzle flapper

• Control Signal: DC current signal (mA)

• Coil Configuration: Dual coil

• Coil Resistance: 16Ω and 20Ω (KVE series)

• Maximum Operating Pressure: 350 bar

• Connection: 4-wire configuration

• Body Material: Cast iron

• Weight: Approx. 0.77 kg

• Function: Provides pilot pressure control signal for S90 series variable pumps

KVEBB1802 – EDC Control Module for S90 180cc Pump

• Model: KVEBB1802

• Brand: Danfoss (formerly Sauer-Danfoss)

• Compatible Pump: S90 series variable piston pump, 180cc displacement

• Control Method: Electric Displacement Control (EDC)

• Coil Configuration: Dual coil

• Assembly: Complete EDC control module

• Body Material: Cast iron

• Service Kit: 8510155 SVC KIT-EDC

KVEBS0799 – EDC Control Module for S90 75cc Pump

• Model: KVEBS0799

• Brand: Danfoss (formerly Sauer-Danfoss)

• Compatible Pump: S90 series variable piston pump, 75cc displacement

• Control Method: Electric Displacement Control (EDC)

• Control Current Range: 4 – 20 mA

• Assembly: Complete EDC control module

III. Key Technical Advantages

1. Torque-Motor + Double-Nozzle Flapper Pilot Technology (MCV116G4204)
The MCV116G4204 Pressure Control Pilot valve features torque-motor actuation with a double-nozzle flapper configuration, precisely converting mA-level electrical input signals into proportional pilot pressure output. This design delivers exceptional pressure-to-current linearity and fast response characteristics, making it the core technology enabling precise displacement control for S90 series pumps.

2. Single-Stage Closed-Loop Control – No External Feedback Required
The MCV116G4204 is a single-stage, standalone closed-loop pressure control valve that achieves its closed-loop characteristics using internal hydraulic pressure reactions. This eliminates the need for external pressure sensors or complex closed-loop control circuits, significantly simplifying system architecture and improving overall reliability.

3. 100% Direct Interchangeability & OEM-Standard Manufacturing
All models are manufactured to strict Danfoss/Sauer-Danfoss OEM specifications, ensuring 100% mechanical and hydraulic interchangeability with original parts. KVEBB series complete control modules come pre-assembled with matched MCV series pilot valves (e.g., KVEBB1404 with MCV116G4204), allowing direct replacement of original assemblies without additional setup—significantly reducing equipment downtime.

4. Precision Electro-Hydraulic Proportional Control Technology (KVME Series)
KVME11201 and KVME11204 belong to the Danfoss 42 Series EDC proportional servo valve platform, precisely regulating spool displacement via electrical control signals to achieve continuous proportional control of hydraulic pump displacement. Unlike traditional on/off control, proportional control enables stepless adjustment from zero to maximum flow—significantly improving operational precision and energy efficiency.

5. Dual Coil Redundancy for Enhanced System Reliability
Both KVEBB1404 and KVEBB1802 feature a dual coil configuration, providing control redundancy. Should one coil fail, the other coil can maintain basic control functionality—significantly improving system availability and safety for critical equipment, particularly in continuous-operation applications such as construction and mining machinery.

6. Wide Control Current Range & Precise Displacement Regulation (KVEBS0799)
KVEBS0799 supports the industry-standard 4-20 mA control current range. This standardized current interface enables direct compatibility with the majority of industrial PLCs and controllers, eliminating the need for additional signal conversion modules and significantly simplifying system integration.

IV. Application Areas

This EDC product series is specifically designed for variable pump electric displacement control systems in mobile and industrial hydraulics, compatible with the following equipment types and hydraulic systems:

• Construction Equipment Hydraulics: Excavators, wheel loaders, bulldozers—electric displacement control for K3V/K5V series main pumps

• Hydrostatic Drive Equipment: S42 hydrostatic transmissions—typical application for KVME series EDC servo valves

• Bobcat Equipment: KVME11204 corresponds to Bobcat material number 6678339, used in hydraulic control systems for Bobcat compact loaders and similar equipment

• Road Construction & Compaction Equipment: Rollers, pavers—S90 series closed-circuit pump drive systems

• Material Handling Equipment: Forklifts, reach stackers, telescopic handlers

• Agricultural Machinery: Large combine harvesters, tractors—hydrostatic drive systems

• Mining & Underground Equipment: Mining trucks, LHD loaders

• Specialty Vehicles: Concrete pump trucks, municipal sanitation vehicles

Typical circuit applications include: variable pump electric displacement control (EDC) , pump outlet pressure closed-loop control, load sensing system pilot pressure control.

V. Expert Maintenance Tips

1. Verify Model & Displacement Matching (★★★★★)

• KVEBB1404 is specifically designed for S90 series 130cc displacement piston pumps

• KVEBB1802 is specifically designed for S90 series 180cc displacement piston pumps

• KVEBS0799 is specifically designed for S90 series 75cc displacement piston pumps
  Confirm pump displacement matches the module model before installation. Mismatched pairing will result in displacement control errors and may cause severe pump damage.

2. Control Current Range Verification

• KVEBS0799 operates within a 4-20 mA control current range

• KVEBB/KVME Series requires calibration of zero point and full scale using a dedicated signal generator
  Calibrate control current zero point and full scale after installation to ensure displacement control accuracy. Exceeding the control current range may cause coil overheating or spool sticking.

3. Oil Cleanliness Management (★★★★★)
EDC control modules contain pilot valve spools and nozzle-flapper structures that are highly sensitive to oil contamination. Maintain system oil cleanliness at ISO 4406 16/14/12 or better. Use 10μm or higher-precision return filters and inspect filter elements regularly.

4. Pilot Oil Supply Pressure Verification
KVEBB/KVEBS series EDC control modules require a stable pilot oil supply. The MCV116G4204 pilot valve has a maximum operating pressure of 350 bar. Verify system pilot pressure meets the operating requirements before installation. Unstable pilot pressure will directly affect displacement control accuracy and response speed.

5. Electrical Connection & Shielding

• KVME series features 42 Series MS connector (DE1A2)

• KVME11204 features 4-pin connector with M6×60 mounting bolts

• KVEBB/KVEBS series control modules feature standard industrial connectors (Weather-Pak interface)

• Control signals are current-based and sensitive to electromagnetic interference—use shielded twisted-pair cables for control wiring, with shield grounded at one end

6. Installation Torque Specifications
When mounting EDC control modules to the pump body, tighten mounting bolts to Danfoss recommended torque. Excessive torque may deform the module housing and affect internal spool movement; insufficient torque may cause seal failure and external leakage.

7. Storage Environment
Recommended storage temperature: -40°C to +85°C. Avoid impact loads on the module body during installation. Handle with care to prevent drop damage to pilot valve components.