KVME11201 Danfoss KVEB Pilot Valve Series 90

Product Overview

The KVME11201 (and related models KVEBB1404, KVEBB1802) is a pressure control pilot valve compatible with the Danfoss/Sauer-Danfoss KVEB series Electrical Displacement Control (EDC), designed for Series 90 variable displacement piston pumps. This two-stage electro-hydraulic valve uses a torque-motor-actuated double-nozzle flapper Pressure Control Pilot (PCP) in the first stage to generate differential output pressure proportional to the electrical signal, precisely controlling pump swashplate angle via closed-loop mechanical feedback. Fully interchangeable with original KVEB/KVME series units, it is ideal for paving machines and other mobile equipment. Every unit undergoes rigorous simulated duty-cycle testing for reliable performance under high pressure and vibration.

Technical Specifications 

• Model: KVME11201 (primary); compatible variants: KVEBB1404, KVEBB1802
• Type: Pressure control pilot valve (two-stage electro-hydraulic servo for pump displacement control)
• Compatible Pump: Danfoss Series 90 variable displacement piston pumps
• Rated Pressure: 350 bar
• Peak Pressure: 420 bar
• Flow Range: Approx. 40-80 L/min (pilot stage)
• Control Method: Electrical signal driven (torque motor + mechanical feedback closed loop)
• Operating Temperature: -40°C to 120°C
• Leakage: <0.1 ml/min @ 100 bar
• Ingress Protection: IP67 (solenoid section)
• Weight: Approx. 5 kg

Key Technical Advantages

1. Closed-loop mechanical feedback control: Integrated spool position mechanical feedback combined with differential pressure output delivers precise, stable pump swashplate angle regulation with fast response and strong disturbance rejection.
2. 100% drop-in interchangeability: Fully compatible interface and function with original Danfoss KVEB/KVME series pilot valves — direct replacement without modifying the pump body or control system.
3. High-pressure low-leakage design: Rated 350 bar with 420 bar peak; precision machining and high-quality sealing materials ensure extremely low internal leakage for improved system efficiency and stability.
4. Harsh-environment capability: Wide temperature range and IP67 protection, validated by 100% simulated duty-cycle testing, meet the vibration, dust and continuous-operation demands of paving machines and construction equipment.

Application Areas

• Asphalt pavers and road construction equipment pump displacement electrical control
• Construction machinery (loaders, excavators) Series 90 pump electro-hydraulic systems
• Agricultural and forestry machinery variable pump pilot regulation
• Mobile hydraulic systems requiring precise displacement control

Expert Maintenance Tips

Verify pilot oil cleanliness at ISO 4406 18/16/13 or better before installation; inspect O-rings and sealing surfaces. Follow original pin assignment strictly and ensure proper signal shielding. Periodically check torque-motor coil resistance and pilot differential pressure; avoid prolonged unloaded operation. Prefer models with matching current range and deadband settings when replacing. Protect precision valve surfaces during service to prevent contamination of the nozzle-flapper mechanism; perform null calibration and system functional testing after installation.