Hydraulic Solenoid Directional Control Valve
6 month ago
Product details
I. Model Breakdown and Meanings
4WE10E31B/CG24N9Z5Lis a typical solenoid-operated directional control valve manufactured byBosch Rexroth. The model number is decoded as follows:
1. 4WE
• 4: Indicates4 ports(P, T, A, B), representing a 3-position 4-way or 2-position 4-way valve.
• WE: Bosch Rexroth's series code for wet electromagnetic valves (Wet Electromagnetic Valve).
2. 10
• Nominal flow rate:10 L/min(nominal diameter DN10, corresponding to 10mm bore size).
3. E
• Valve spool type:E-typedenotes a neutral position whereall ports are interconnected(P→T, A↔B), suitable for system unloading or floating applications.
4. 31
• Mounting and connection:
• 3: Flange-mounted (board-type connection).
• 1: Equipped with manual override.
5. B
• Solenoid type:B-typeindicates AC/DC universal solenoid (voltage specified in suffix).
6. /CG24N9Z5L
• Solenoid and electrical parameters:
• C: Solenoid with protective cover (IP65 rated).
• G24: Operating voltageDC 24V(G = DC, 24V).
• N9: Electrical connection viaDIN 43650B plug(with LED indicator).
• Z5L: Valve body material and surface treatment (Z5 = zinc-plated steel, L = no special coating).
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II. Key Technical Specifications
【表格】
Parameter Description
Nominal diameter (DN) 10mm (flow rate: 10 L/min; max. backpressure ≤ 1MPa)
Working pressure Max. 315 bar (dependent on spool material and seals)
Solenoid power Approx. 10W at DC 24V (inrush current ≤ 0.8A; holding current ≤ 0.4A)
Response time ≤ 30ms (typical for energizing/de-energizing)
Ambient temp. -20°C to +50°C (solenoid section)
Fluid viscosity Recommended 10–400 mm²/s (hydraulic oil grades N46–N460)
Leakage ≤ 15 cm³/min in neutral position (ISO 4401 test standard)
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III. Neutral Position (E-Type) Characteristics
• Port states:
• P→T interconnected (unloading), A↔B interconnected (floating).
• Applications:
• Hydraulic system unloading (reducing pump load).
• Free movement of actuators (e.g., cylinder release in clamping fixtures).
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IV. Typical Applications
1. Industrial Automation
• CNC machine tool clamping control, hydraulic press slide positioning.
2. Construction Machinery
• Excavator boom/bucket hydraulic circuits, crane luffing mechanisms.
3. Agricultural Machinery
• Tractor hydraulic outputs, combine harvester steering systems.
4. Plastics Machinery
• Injection molding machine mold opening/closing, blow molding machine clamping.
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V. Selection and Usage Considerations
1. Flow Matching
• Ensure system flow ≤ valve nominal flow (10 L/min); excessive flow causes heating or pressure loss.
2. Voltage Compatibility
• ConfirmDC 24Vpower supply; misconnection to AC voltage damages the solenoid.
3. Mounting Orientation
• Install vertically (solenoid upward) to prevent contaminant deposition.
4. Contamination Control
• Maintain oil cleanliness toNAS 1638 Class 7orISO 4406 18/16to avoid spool sticking.
5. Maintenance Cycle
• Inspect solenoid coil resistance every 2,000 hours (normal value ≈ 300Ω ± 10%); replace seals as needed.
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VI. Alternative Models and Competitors
• Bosch Rexroth Equivalent: 4WE6E61B/CG24N9K4 (DN6, 6 L/min flow).
• Competitor Models:
• Parker: D1VW020BNJW (DN10, 20 L/min flow).
• YUKEN: DSG-01-2B2-D24-N1-50 (wet solenoid valve, DC 24V).
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