Danfoss MCV Series Solenoid-Operated Control Valve
2 month ago
Product details
Danfoss MCV Series Solenoid-Operated Control Valve
MCV116A3101
MCV116A3102
MCV116A3204
MCV116A3201
MCV116A3501
MCV116A3203
MCV116G4201
MCV116G4204
MCV116F3118
MCV116A1017
MCV116A1501
MCV116A1407
1. Product Overview
TheDanfoss MCV Seriesis asolenoid-operated control valvedesigned by Danfoss for precise control of flow, pressure, or direction in hydraulic systems. Its core feature is the electromagnetic coil (solenoid) that drives the valve spool/poppet to achieve fast response and high reliability, making it suitable for industrial automation, mobile machinery, and energy equipment applications.
Key Terms:
• Solenoid-Operated: Controlled via electromagnetic coil activation/deactivation.
• Control Valve: Includes directional, pressure, or flow control valves.
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2. Core Product Features
2.1 Structural Design
• Valve Types:
• Spool Valve: For medium-to-high-pressure systems, with good sealing but higher friction.
• Poppet Valve: Fast response, low leakage, ideal for low-pressure or high-frequency switching.
• Solenoid Actuator:
• Wet Solenoid: Coil submerged in hydraulic oil for better heat dissipation and longer lifespan.
• Dry Solenoid: Coil isolated from oil, suitable for explosion-proof or clean environments.
• Porting Options:
• Subplate Mounting: Modular design for easy integration.
• Pipe Mounting: Direct installation on pipelines for flexibility.
2.2 Performance Parameters
【表格】
Parameter Typical Range Notes
Rated Pressure 210–350 bar (3,000–5,000 psi) Depends on valve body material and seal design.
Max Flow Rate 50–200 L/min (13–53 GPM) Correlates with port size (e.g., NG6/NG10).
Response Time <10 ms (full open from power-on) Affected by solenoid speed; wet types are faster.
Operating Temp. -40°C to +100°C (-40°F to +212°F) Suitable for extreme environments; requires temperature-resistant seals.
IP Rating IP65/IP67 (dust/waterproof) For outdoor or humid conditions.
2.3 Control Modes
• On/Off Type:
Fully opens/closes valve spool upon solenoid activation, suitable for simple logic control (e.g., hydraulic cylinder start/stop).
• Proportional Type:
Linearly adjusts port opening via input current (4-20mA or 0-10V) for continuous flow/pressure control (requires proportional amplifier).
• Servo Type:
Integrates position feedback sensors for high-precision closed-loop control (e.g., wind turbine pitch systems).
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3. Typical Applications
3.1 Industrial Hydraulics
• Injection Molding Machines: Controls hydraulic flow during clamping, injection, and packing phases.
• Die Casting Machines: Regulates pressure for rapid filling and intensification.
• Bending Machines: Manages ram descent speed and synchronization.
3.2 Mobile Machinery
• Construction Equipment: Hydraulic pilot control for excavators/loaders (e.g., joystick signal conversion).
• Agricultural Machinery: Hydraulic output control for combines/tractors.
• Material Handling: Forklift lift/tilt function valve groups.
3.3 Energy & Process Control
• Wind Turbines: Pitch system hydraulic drive valves (proportional control of blade angles).
• Petrochemical: Remote actuator valves for explosion-proof environments.
• Food Processing: Hydraulic pressing equipment pressure regulation.
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4. Key Selection Criteria
4.1 Define Valve Function
• Directional Control: Select 2/3-way, 3/4-way, etc.
• Pressure Control: Relief valves, pressure reducers.
• Flow Control: Throttle valves, flow regulators.
4.2 Match System Parameters
• Pressure Rating: Valve rating must exceed system max pressure (with 20% margin).
• Flow Demand: Select port size based on pump output (e.g., NG6 for 50 L/min).
• Media Compatibility: Confirm hydraulic fluid type (mineral oil, biodegradable oil) impact on seals.
4.3 Environmental & Reliability
• Temperature Range: Low-temp grease for cold climates; heat-resistant coils for high temps.
• Vibration/Shock: Anti-vibration models (e.g., with dampening brackets) for mobile use.
• Lifespan Requirements: High-cycle valves (e.g., 10M cycles) for frequent switching.
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5. Common Issues & Solutions
5.1 Valve Inaction
• Causes: Burnt coil, insufficient voltage, stuck spool.
• Troubleshooting:
1. Measure coil resistance (±10% of nominal value).
2. Verify supply voltage (e.g., 24VDC ±15%).
3. Clean/replace spool if contaminated.
5.2 Excessive Leakage
• Causes: Aged seals, valve body scratches, overpressure.
• Solutions:
• Replace O-rings/composite seals.
• Lap valve bore (professional equipment required).
• Derate use or upgrade to high-pressure valve.
5.3 Slow Response
• Causes: Low solenoid force, weak spring, high oil viscosity.
• Optimizations:
• Use high-power solenoid (increased coil turns).
• Replace with stiffer spring.
• Switch to low-viscosity oil (e.g., ISO VG32) in winter.
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