KVEBB1402 MCV116G4201 Danfoss Displacement Control Valve 350 bar

Product Overview

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

The KVE series is a two-stage electrohydraulic pump stroke control device for Series 90-PV variable displacement piston pumps. The KVE is designed as a direct drop-in replacement upgrade for the MCV111.

The MCV116 series Pressure Control Pilot (PCP) serves as the first stage of the system—featuring a torque-motor actuated, double-nozzle flapper design that converts the applied electrical signal into a differential output pressure proportional to the control signal. This differential pressure drives the second stage spool, porting oil to the pump’s servo cylinders for closed-loop swashplate angle control.

The KVE series covers models including KVEBB1402 and KVEBB1404 (displacement code 14 = 130 cc). The MCV116 series covers models including MCV116G4201. The PCP is a single-stage, standalone, closed loop pressure control valve which uses internal hydraulic pressure reactions to achieve its closed loop control characteristics—no external pressure sensors required.

Our complete range of Danfoss KVE/MCV 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.

Technical Specifications 

KVEBB1402 (S90 130CC EDC, Dual Coil)

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

• Model Code: KVEBB1402

• Brand: Danfoss (Sauer-Danfoss)

• Product Type: Electro-hydraulic proportional displacement control valve

• Compatible Pump Series: Danfoss Series 90 variable displacement pumps (Series 90-PV)

• Displacement Specification: 130 cc

• Control Current Range: 14 – 85 mA (dual coil configuration)

• Construction: Two-stage electrohydraulic pump stroke control with mechanical feedback for closed-loop swashplate angle control

• First Stage: MCV116 Pressure Control Pilot (PCP), torque-motor actuated, double-nozzle flapper

• Second Stage: Differential pressure drives spool, porting oil to pump servo cylinders

• Second Stage Spool Feature: Null deadband for machine safety

• Pilot Connector Type: MS connector (14-85 mA)

• Weight: Approx. 1.59 kg

• OEM Kit Number: 8510119

• Configuration: 2 COIL (Dual coil)

KVEBB1404 (S90 130CC EDC, 4-Wire)

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

• Model Code: KVEBB1404

• Brand: Danfoss (Sauer-Danfoss)

• Product Type: Electro-hydraulic proportional displacement control valve

• Compatible Pump Series: Danfoss Series 90 variable displacement pumps

• Displacement Specification: 130 cc

• Control Current Range: Refer to KVEBB series general specifications

• Electrical Configuration: 4-wire configuration

MCV116G4201 (Pressure Control Pilot, Type 4)

• Product Series: Danfoss MCV116 series Pressure Control Pilot (PCP) valve

• Model Code: MCV116G4201

• Brand: Danfoss (Sauer-Danfoss)

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

• Actuator Type: Torque motor actuated

• Pilot Stage: Double-nozzle flapper

• Output: Differential output pressure proportional to applied electrical input signal

• Control Type: Single-stage, standalone, closed loop pressure control using internal hydraulic pressure reactions

• Maximum System Pressure: 350 bar (5000 psi)

• Body Material: Stainless steel

• Port Connections: 1-inch inlet, NPT outlet

• Number of Ports: 2

• Ambient Operating Temperature: -40°C to +93°C

• Oil Temperature Range: -20°C to +107°C

• Oil Viscosity Range: 40 – 1400 SSU

• Design Life: ≥10,000 hours or ≥10,000,000 cycles minimum

• Weight: Approx. 0.79 kgto 1.0 kg

• Dimensions (Packed) : 15 cm × 9 cm × 6 cm

• Approvals: EN ISO 12100

• Material: Iron

• Voltage: 24V

Key Technical Advantages

1. Torque-Motor Actuation for High-Precision Electro-Hydraulic Proportional Control

The MCV116 utilizes a torque motor as the electro-mechanical transducer, receiving a DC milliamp current signal and driving 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 produces a differential output pressure 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 second stage spool for precise pump displacement control.

3. Two-Stage Electrohydraulic Closed-Loop Control for Precise Displacement Regulation

The KVE series is a two-stage electrohydraulic pump stroke control device. The first stage (MCV116 PCP) converts the electrical signal to differential pressure; the second stage uses this differential pressure to drive the spool, porting oil to the pump’s servo cylinders. Mechanical feedback establishes closed-loop control for precise, stable swashplate angle positioning.

4. Single-Stage Standalone Closed-Loop Control – No External Feedback Required

The MCV116 is a single-stage, standalone, closed loop pressure control valve. It uses internal hydraulic pressure reactions to achieve its closed loop control characteristics—no external pressure sensors or additional feedback loops are required. This design significantly simplifies system integration and reduces total cost.

5. Rugged Construction for Harsh Operating Conditions

The MCV116 is constructed from stainless steel or iron and withstands mobile equipment vibration and shock conditions. Design life is ≥10,000 hours or ≥10,000,000 cycles minimum. Ambient operating temperature range -40°C to +93°C and oil temperature range -20°C to +107°C meet the most demanding global construction machinery requirements.

6. Broad Displacement Compatibility with Flexible Configurations

The KVE series is compatible with Danfoss Series 90 variable displacement pumps (Series 90-PV) . Multiple displacement options including KVEBB1402 (130 cc) are available. KVEBB1402 offers a control current range of 14–85 mA with an MS connector. The KVE is designed as a direct drop-in replacement upgrade for the MCV111.

7. 100% Direct Interchangeability and Simulated Condition Testing

The KVE/MCV series strictly adheres to Danfoss original mounting dimensions and interface standards, enabling direct drop-in replacement of original valves without pump modification or system adjustment. 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: Electro-hydraulic pump displacement control for excavators, wheel loaders, motor graders, road rollers

• Agricultural Machinery: Displacement control for hydrostatic transmission (HST) systems in large tractors and combines (e.g., New Holland TF/TX series)

• Material Handling Equipment: Pump displacement control for forklifts and reach stackers

• Road Construction Equipment: Travel drive system control for pavers and rollers

• Marine & Offshore: Pressure and flow control for marine hydraulic systems

• Mining Equipment: Hydrostatic drive systems for underground LHDs and mining trucks

Expert Maintenance Tips

1. Verify Model and Pump Compatibility Prior to Installation

The KVE series is a dedicated control valve for Series 90 variable displacement pumps. Confirm that the model matches the pump displacement—KVEBB1402 is compatible with 130 cc pumps. Mismatched models will result in abnormal control characteristics and significantly impair system performance.

2. Electrical Wiring Precautions

The KVEBB1402 is driven by a torque motor requiring a DC milliamp current control signal (14–85 mA) . It features an MS connector. 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.

3. Oil Cleanliness Management

The KVE/MCV series pilot stage features extremely tight clearances (double-nozzle flapper gaps typically in the micron range) and demands 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. Design life is ≥10,000 hours or ≥10,000,000 cycles minimum. If sluggish response, non-linear behavior, or increased leakage is observed, arrange for servicing or replacement.