KVEBA1007 KVEBB0502 KVEBB0702 MCV116G4201 Danfoss Pressure Control Valve

Product Overview

The KVE/KVEB/KVME series electro-hydraulic proportional control valves and MCV series pressure control pilot valves are precision electro-hydraulic control components engineered by Danfoss (formerly Sauer-Danfoss) for the 90 series variable displacement piston pumps. These products are widely used for pump displacement control and pressure regulation in mobile machinery and industrial hydraulic systems.

Both the KVE and MCV series feature a torque-motor driven double-nozzle flapper pilot stage. The torque motor receives a DC milliamp current signal (typically 75mA) and drives the flapper via electromagnetic torque, varying the outlet pressures of the two nozzles to produce a differential pressure output proportional to the control signal. This pilot pressure directly actuates the servo piston of the 90 series pump, enabling electro-hydraulic proportional pump displacement control. The KVE series is designed as a direct drop-in replacement upgrade for the MCV111.

Our complete range of Danfoss KVE/MCV electro-hydraulic proportional valves strictly adheres to OEM technical standards, achieving 100% direct interchangeability with original components. Every unit undergoes 100% simulated operating condition bench testing prior to shipment, ensuring performance parameters are fully consistent with genuine Danfoss products. Direct replacement significantly reduces equipment downtime and maintenance costs.

⚠️ Model Attribution Note:

• KVEBA1007, KVEBB0502, and KVEBB0702 belong to the Danfoss (Sauer-Danfoss) KVE series electro-hydraulic proportional control valves

• MCV116G4201 belongs to the Danfoss MCV116 series Pressure Control Pilot Valve

• All models are dedicated control components for Danfoss 90 series variable displacement pumps

⚠️ Model Code Decoding (using KVEBB0502 as example) :

• KVE = Electro-hydraulic Proportional Control Valve series

• B = Control type / mounting configuration code

• B = Spool / flow specification code

• 05 = Displacement specification (05 = 55cc, 07 = 75cc, 10 = 100cc, etc.)

• 02 = Design variant / coil configuration code

Model Code Decoding (using MCV116G4201 as example) :

• MCV = Pressure Control Pilot Valve

• 116 = Series code

• G = Design / interface type code

• 4201 = Specific configuration code

Technical Specifications 、

KVEBA1007

• Product Series: Danfoss KVE series electro-hydraulic proportional control valve

• Model Code: KVEBA1007

• Brand: Danfoss (Sauer-Danfoss)

• Product Type: Electro-hydraulic proportional control valve / Pump displacement control valve

• Compatible Pump Series: Danfoss 90 series variable displacement pumps

• Actuator Type: Torque motor

• Control Signal: DC milliamp current signal (typical 75mA)

• Mounting Type: Direct mount on 90 series pump control cover

• Sealing Material: NBR (standard)

KVEBB0502 (HY187434)

• Product Series: Danfoss KVE series electro-hydraulic proportional control valve

• Model Code: KVEBB0502

• Material Number: HY187434

• Brand: Danfoss Power Solutions

• Product Type: Electro-hydraulic proportional control valve / EDC (Electric Displacement Control)

• Displacement Specification: 55cc

• Connection Type: MS CON (Multi-pin connector)

• Coil Configuration: D-COIL (Dual coil)

• Weight: Approx. 3.32 – 3.47 kg

• Country of Origin: United States (US)

• Compatible Pump Series: Danfoss 90 series variable displacement pumps

KVEBB0702

• Product Series: Danfoss KVE series electro-hydraulic proportional control valve

• Model Code: KVEBB0702

• Brand: Danfoss (Sauer-Danfoss)

• Product Type: Electro-hydraulic proportional control valve / SVC KIT-EDC

• Displacement Specification: 75cc

• Coil Configuration: 2 COIL (Dual coil)

• Compatible Pump Series: Danfoss 90 series variable displacement pumps (S90 75CC)

MCV116G4201

• Product Series: Danfoss MCV116 series pressure control pilot valve

• Model Code: MCV116G4201

• Brand: Danfoss (Sauer-Danfoss)

• Product Type: Pressure Control Pilot Valve

• NSN Number: 4810-01-519-6548

• Actuator Type: Torque motor

• Pilot Stage: Double-nozzle flapper type

• Body Material: Stainless steel

• Port Connections: 1-inch inlet, NPT outlet

• Number of Ports: 2

• Maximum Operating Pressure: 350 bar

• Weight: Approx. 0.79 kg

• Compatible Pump Series: Danfoss 90 series variable displacement pumps

• Safety Certification: EN ISO 12100

Key Technical Advantages

1. Torque-Motor Actuation for High-Precision Electro-Hydraulic Proportional Control
Both KVE and MCV series utilize a torque motor as the electro-mechanical transducer. The torque motor receives a DC milliamp current signal (typical operating current 75mA) and drives the flapper via electromagnetic torque. Compared to conventional proportional solenoids, the torque motor delivers superior control precision, faster response, and lower hysteresis—the core technology enabling closed-loop pump displacement control.

2. Double-Nozzle Flapper Pilot Stage for Precise Differential Pressure Output
The double-nozzle flapper pilot stage design produces a differential pressure output proportional to the control signal. As the flapper deflects under torque motor actuation, the outlet pressures of the two nozzles change in opposite directions—one increasing while the other decreases. This differential pressure directly drives the servo piston of the 90 series pump, enabling precise pump displacement control.

3. 100% Direct Interchangeability for Simplified Maintenance and Upgrade
The KVE series is designed as a direct drop-in replacement upgrade for the MCV111. All models strictly adhere to Danfoss original mounting dimensions and interface standards, enabling direct drop-in replacement of original valves without pump modification or system adjustment—significantly reducing maintenance downtime and retrofit costs.

4. Broad Displacement Range and Flexible Configuration
The KVE series offers multiple displacement options including 05 (55cc), 07 (75cc), and 10 (100cc) , accommodating various displacement variants of the Danfoss 90 series. KVEBB0502 is compatible with 55cc pumps, while KVEBB0702 is compatible with 75cc pumps. The dual-coil (D-COIL) configuration provides redundant drive capability, enhancing system reliability and safety.

5. Certified to International Safety Standards
The MCV116G4201 is certified to EN ISO 12100 machinery safety standards. Valve bodies are manufactured from stainless steel, offering excellent corrosion resistance and structural strength. Every unit undergoes 100% simulated operating condition bench testing prior to shipment, ensuring consistent, stable performance at rated pressure and flow.

Application Areas

• Construction Machinery: Excavators, wheel loaders, motor graders, road rollers—electro-hydraulic pump displacement control

• Agricultural Machinery: Hydrostatic transmission (HST) displacement control for large tractors

• Material Handling Equipment: Forklifts, reach stackers—hydraulic pump displacement control

• Road Construction Equipment: Pavers, rollers—travel drive system control

• Mining Equipment: Underground LHDs, mining trucks—hydrostatic drive systems

Expert Maintenance Tips

1. Verify Model and Pump Compatibility Prior to Installation
The KVE/MCV series are dedicated control valves for the 90 series variable displacement pumps. Confirm that the model matches the pump displacement—KVEBB0502 is compatible with 55cc pumps, while KVEBB0702 is compatible with 75cc pumps. Mismatched models will result in abnormal control characteristics and significantly impair system performance.

2. Electrical Wiring Precautions
The KVE series is driven by a torque motor requiring a DC milliamp current control signal (typical 75mA). High voltage or high current signals must never be applied, as this will damage the torque motor coils. Verify that the controller output signal type matches the valve specifications prior to wiring. For dual-coil (D-COIL) configurations, observe proper polarity for both coils.

3. Oil Cleanliness Management
The KVE/MCV series pilot stages feature extremely tight clearances (double-nozzle flapper gaps typically in the micron range) and demand high oil cleanliness. Recommended system cleanliness: ISO 4406 Class 18/16/13 or higher. Install high-precision filters (filtration rating ≤10μm) in the system return line and inspect filter elements regularly.

4. Installation Torque and Sealing
Use a torque wrench to tighten mounting bolts to the values specified in Danfoss technical manuals. Use OEM-specification O-rings for sealing—inspect seal condition prior to installation and replace if worn or damaged. Do not apply excessive sealant, as sealant debris may enter the valve body.

5. System Commissioning and Calibration
After replacing the KVE/MCV control valve, recalibrate the pump displacement control. Conduct preliminary commissioning at low pressure and low speed to verify that the proportional relationship between control signal and pump displacement output meets expectations. Gradually load to rated conditions while monitoring system response for smooth operation, oscillation, or hysteresis.

6. Periodic Maintenance and Inspection
Perform functional checks every 2,000 operating hours or annually, including: linearity verification between control signal and displacement output, response time testing, and leakage inspection. If sluggish response, non-linear behavior, or increased leakage is observed, arrange for servicing or replacement.