HUADE hydraulic valve
2 month ago
Product details
1. Model Breakdown (DREM0-1-30B/200Y)
【表格】
Field Description
DREM Valve series code (HUADE-specific, likely represents "electro-hydraulic proportional pressure reducing/sequence valve" series)
0 Structural type code (e.g., 0=plate-mounted, 1=pipe-mounted; confirm via HUADE catalog)
1 Function code (e.g., 1=pressure reducing valve, 2=sequence valve, 3=relief valve; refer to catalog)
30B Nominal diameter (30mm) and design variant (B may indicate special sealing/material)
200Y Maximum set pressure (200bar/20MPa) and additional features (Y may denote pressure compensation or remote control)
Note: Exact code definitions require verification against HUADE’s official catalog. The above is a logical interpretation.
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2. Core Functions & Technical Features
(1) Valve Type Inference
Based on the "pressure reducing/sequence valve" clues, this valve is likely anelectro-hydraulic proportional pressure reducing valveor apressure-compensated sequence valve, with:
• Pressure Regulation: Precise outlet pressure control via proportional solenoid or manual adjustment.
• Pressure Maintenance: Stable system pressure under load variations (e.g., clamping force control).
• Reverse Check: May integrate a check valve to prevent backflow.
(2) Key Specifications (Example)
【表格】
Parameter Value Description
Nominal Diameter DN30 (30mm) Flow capacity: ~100-300L/min (verify via flow curve)
Max Pressure 200bar (20MPa) Suitable for medium-high pressure systems
Control Mode Electro-hydraulic proportional/manual (confirm) Stepless pressure adjustment
Response Time ≤50ms (typical) Rapid response to load changes
Fluid Compatibility Mineral oil, phosphate ester fluids (confirm) Match system hydraulic fluid type
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3. Typical Applications
(1) Hydraulic Fixture Systems
• Function: Maintain constant clamping force in machine tool fixtures to prevent workpiece loosening.
• Valve Combination: Paired with check valves and relief valves for pressure-holding circuits.
(2) Injection Molding Machine Clamping Units
• Function: Control mold opening/closing pressure to avoid defects from pressure fluctuations.
• Advantage: Proportional control enables pressure gradient adjustment for improved molding quality.
(3) Construction Machinery Hydraulic Systems
• Function: Distribute multi-circuit pressure in cranes/excavators, prioritizing critical actions.
• Example: Combined with sequence valves for "outrigger priority" logic.
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4. Selection & Usage Guidelines
(1) Critical Selection Parameters
• Pressure Matching: Set pressure should slightly exceed system max demand (e.g., select 200bar valve for 180bar system).
• Flow Verification: Choose diameter based on system flow curves to avoid excessive pressure drop.
• Control Mode: Confirm need for electro-hydraulic proportional control (DREM0 may support) or manual adjustment.
(2) Installation & Commissioning
• Orientation: Ensure valve arrow aligns with oil flow direction.
• Filtration: Install 5μm filters to prevent valve spool sticking.
• Pressure Setting: Calibrate outlet pressure via adjustment screws or proportional signals.
(3) Common Troubleshooting
【表格】
Issue Possible Causes Solutions
Unstable Pressure Spring fatigue, proportional signal interference Replace spring, check solenoid wiring
Excessive Leakage Seal aging, valve body scoring Replace seals, lap valve body
Slow Response High fluid viscosity, clogged control port Use lower-viscosity oil, clean control port
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5. Alternative Models & Competitor Comparison
【表格】
Brand/Model Features
HUADE DREM0-1-30B/200Y Medium-high pressure proportional valve, cost-effective for domestic equipment
Rexroth DR Series German precision, high accuracy, but higher cost
Yuken DSG Series Japanese design, strong contamination resistance for harsh environments
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Ningbo Hengnuo Hydraulic Drive Co.,Ltd
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3 year
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