MCV110A1017 | Danfoss Pressure Control Pilot Valve 21-35MPa

Product Overview

The MCV110A1017, MCV116A3501, and MCV116A3204 are core models in the Danfoss / Sauer-Danfoss MCV series of Pressure Control Pilot (PCP) valves. These valves are widely used for displacement and pressure control of Danfoss Series 90 variable displacement piston pumps and are critical control components in mobile and industrial hydraulic systems.

The MCV series pressure control pilot valves feature a torque-motor actuated, double-nozzle flapper valve configuration that converts electrical input signals into differential output pressure proportional to the applied signal. The valve is a single-stage, stand-alone closed-loop pressure control valve that uses internal hydraulic pressure reactions to achieve its closed-loop control characteristics.

Model Overview:

• MCV110A1017: MCV110A series pressure control pilot valve with 6-port design, rated pressure 21–35 MPa, response time ≤20 ms, repeatability ±1%, protection class IP65/IP67 (optional). Suitable for construction machinery, industrial automation, agricultural machinery, and wind power applications.

• MCV116A3501: MCV116 series pressure control pilot valve with typical pilot supply pressure of 17.2 bar and maximum flow capacity of 550 L/min. Single-stage closed-loop pressure control with torque-motor actuated double-nozzle flapper configuration.

• MCV116A3204: MCV116 series Pressure Control Pilot (PCP) valve, mounted directly on the pump head, with maximum operating pressure of 350 bar and maximum flow of 60 L/min. Input control signal 4–20 mA DC with 24 VDC power supply. Valve body material is high-strength aluminum alloy, operating temperature -20°C to +80°C, weight approximately 1.8–2.0 kg.

Technical Specifications 

MCV110A1017 Specifications:

• Model: MCV110A1017

• Brand: DANFOSS / SAUER-DANFOSS

• Series: MCV110A Series

• Product Type: Pressure Control Pilot Valve (PCP)

• Control Method: Pilot-operated, electric proportional control / manual emergency operation

• Rated Pressure: 21–35 MPa (model-dependent)

• Port Configuration: 6-port design, supports simultaneous multi-actuator control

• Response Time: ≤20 ms

• Repeatability: ±1%

• Protection Class: IP65 / IP67 (optional)

• Body Material: Cast Iron

• Actuation Type: Direct-acting

• Connection Form: Flange type

• Weight: 0.73 kg

• Applications: Construction machinery, industrial automation, agricultural machinery, wind power

MCV116A3501 Specifications:

• Model: MCV116A3501

• Brand: DANFOSS / SAUER-DANFOSS

• Series: MCV116 Series

• Product Type: Pressure Control Pilot Valve (PCP)

• Valve Structure: Torque-motor actuated, double-nozzle flapper valve

• Typical Supply Pressure: 17.2 bar

• Maximum Flow Rate: 550 L/min

• Maximum Voltage: 30V

• Control Type: Single-stage stand-alone closed-loop pressure control

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

• Compatible Pumps: Danfoss Series 90 variable displacement pumps

MCV116A3204 Specifications:

• Model: MCV116A3204

• Brand: DANFOSS / SAUER-DANFOSS

• Series: MCV116 Series

• Product Type: Pressure Control Pilot Valve (PCP)

• Maximum Operating Pressure: 350 bar

• Maximum Flow: 60 L/min

• Valve Structure: Torque-motor nozzle-flapper closed-loop structure

• Input Control Signal: 4–20 mA DC

• Power Supply: 24 VDC

• Body Material: High-strength aluminum alloy

• Working Medium: Anti-wear mineral hydraulic oil

• Working Temperature: -20°C to +80°C

• Installation: Direct plate mounting on pump head

• Weight: Approx. 1.8–2.0 kg

• Compatible Pumps: Danfoss Series 90R / 90L piston pumps

Key Technical Advantages

1. Torque-Motor Actuated Double-Nozzle Flapper Valve Structure — High-Precision Control

Both MCV116A3501 and MCV116A3204 feature a torque-motor actuated, double-nozzle flapper valve configuration. The torque motor converts electrical input signals into precise mechanical displacement, producing differential output pressure proportional to the applied signal by varying the nozzle-flapper clearance. Compared to conventional solenoid designs, the torque motor delivers superior dynamic response frequency and lower hysteresis.

2. Single-Stage Stand-Alone Closed-Loop Pressure Control

The MCV series pressure control pilot valves are single-stage, stand-alone closed-loop pressure control valves that use internal hydraulic pressure reactions to achieve closed-loop control characteristics. Precise closed-loop pressure control is achieved without external feedback elements, significantly simplifying the hydraulic system control architecture.

3. Perfect Integration with Danfoss Series 90 Pumps

MCV series pressure control pilot valves mount directly on the pump head of Danfoss Series 90 variable displacement piston pumps (90R / 90L) . They convert 4–20 mA electrical signals into proportional pilot differential pressure to adjust pump swashplate angle and regulate pump displacement and output flow. The compact modular layout reduces external piping and fitting requirements.

4. Fast Response and High Repeatability

MCV110A1017 features ≤20 ms response time and ±1% repeatability. MCV116A3204 offers excellent control linearity with strong anti-vibration and anti-contamination performance. Fast response ensures timely pressure adjustment during sudden load changes, protecting equipment safety.

5. Wide Pressure Range and Flexible Adaptability

MCV110A1017 rated pressure covers 21–35 MPa. MCV116A3204 maximum operating pressure reaches 350 bar. MCV116A3501 supports maximum flow of 550 L/min. The wide pressure and flow coverage flexibly adapts to diverse applications from small-to-medium equipment to large heavy-duty machinery.

6. Rugged Environmental Durability

MCV110A1017 offers optional IP65 / IP67 protection. MCV116A3204 operating temperature covers -20°C to +80°C. MCV116A3501 ambient temperature covers -40°C to +93°C. These products are suitable for diverse extreme climate conditions and demanding industrial environments.

Application Areas

• Construction Machinery — Hydraulic proportional control for excavator booms, arms, and buckets

• Road Construction and Mining Equipment — Hydraulic systems for road rollers, pavers, and mobile mining equipment

• Agricultural Machinery — Header height adjustment cylinder pressure control for combine harvesters

• Injection Molding Machinery — Precise proportional control of clamping force and injection pressure

• Die-Casting Machines — Proportional regulation of injection pressure and speed

• Wind Turbine Systems — Synchronized pressure regulation for multi-blade hydraulic pitch systems

• Industrial Automation — Precise pressure control for hydraulic fixtures and actuators

Expert Maintenance Tips

1. Installation Guidelines

• MCV116A3204 mounts directly on the pump head—pay special attention to alignment with locating pins during installation to prevent spool sticking due to misalignment.

• Thoroughly clean the mounting surface and all ports before installation to prevent foreign particles from entering the pilot valve and causing nozzle blockage or flapper sticking.

• MCV110A1017 features a 6-port design—verify correct port connections during installation.

2. Hydraulic Fluid Cleanliness

• MCV series pilot valves incorporate precision nozzle-flapper mechanisms that are highly sensitive to fluid cleanliness.

• Recommended fluid: Anti-wear mineral hydraulic oil.

• Install a return line filter with minimum 10 μm filtration rating.

3. Electrical Connection Specifications

• MCV116A3204 is a 4–20 mA current-driven device—use a compatible current control amplifier.

• Power supply: 24 VDC.

• Shielded cables are recommended for command signal connections to prevent electromagnetic interference affecting control precision.

4. Temperature Management

• MCV116A3204 operating temperature range: -20°C to +80°C.

• MCV116A3501 ambient temperature range: -40°C to +93°C.

• Select appropriate viscosity hydraulic fluid when operating in extreme temperature conditions.

5. Periodic Maintenance Inspection

• Inspect the valve body for external oil leakage every 2,000 operating hours or at least annually.

• Check electrical connectors for looseness, oxidation, or moisture ingress.

• If response lag or reduced control precision is observed, first check system fluid cleanliness and pilot screens for blockage—nozzle-flapper mechanism contamination is the most common cause of performance degradation.

• The torque motor assembly must not be disassembled by end users; any repairs should be performed by qualified hydraulic service professionals.