Core Application & Equipment Compatibility
These authentic Vickers valves are compatible with construction machinery, industrial hydraulic power units, plastic injection molding machines, and agricultural equipment. Targeting maintenance engineers and procurement managers, they resolve flow control failure, spool jamming, and seal leakage—key to minimizing production downtime. All comply with SAE J1940 and ISO 6403, ensuring reliable performance in medium-high pressure (up to 210bar) environments.
1. DG4V Series Directional Control Valves
Vickers DG4V valves deliver precise flow direction control for hydraulic systems, ideal for heavy-duty operations. A construction firm fixed spool jamming by upgrading to 3μm filtration and regular seal maintenance. Compact design fits confined spaces, with hardened spools ensuring durability, complying with ISO 6403.
No. | Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | DG4V-3-2A-M-U-H7-60 | Die-cast aluminum housing, stainless steel spool, Viton seals, brass fittings | Abrasive particles wearing spools; seal degradation from oil contamination | Install 3μm inline filter; use ISO VG 46 hydraulic oil (DIN 51524) |
2 | DG4V-3-2N-M-U-H7-60 | Die-cast aluminum housing, stainless steel spool, Viton seals, brass fittings | High humidity corroding spools; vibration loosening valve mounts | Monthly anti-corrosion spray; torque mounting bolts to 12N·m |
3 | DG4V-3-2AL-M-U-H7-60 | Die-cast aluminum housing, stainless steel spool, Viton seals, brass fittings | Low temperature causing spool sticking; continuous operation overheating | Preheat oil to 15℃+; set intermittent operation cycles |
4 | DG4V-3-2C-M-U-H7-60 | Die-cast aluminum housing, stainless steel spool, Viton seals, brass fittings | Pressure spikes damaging valve seats; sludge buildup in spool chambers | Install pressure relief valve (210bar max); 6-month oil replacement |
5 | DG4V-3-6C-M-U-H7-60 | Die-cast aluminum housing, stainless steel spool, Viton seals, brass fittings | High flow eroding spool edges; electrical connector corrosion | Operate below rated flow; use waterproof electrical connectors |
6 | DG4V-5-2AJ-M-U-H6-20 | Die-cast aluminum housing, stainless steel spool, Viton seals, brass fittings | Reverse polarity damaging solenoid; seal wear from temperature cycles | Pre-check electrical polarity; annual Viton seal replacement |
7 | DG4V-5-2CJ-M-U-H6-20 | Die-cast aluminum housing, stainless steel spool, Viton seals, brass fittings | Dust blocking spool ports; vibration causing spool misalignment | Monthly port cleaning with compressed air; vibration-damping mounts |
8 | DG4V-5-6CJ-M-U-H6-20 | Die-cast aluminum housing, stainless steel spool, Viton seals, brass fittings | Oil oxidation forming deposits; solenoid coil burnout from voltage fluctuations | Add oil antioxidant; use ±5% voltage stabilizer |
2. DGMX2 Series Pressure Reducing Valves
DGMX2 valves stabilize pressure for sensitive hydraulic components, critical for precision machinery. A plastic mill resolved pressure drift by cleaning valve orifices and calibrating springs, extending service life. Complying with SAE J1940, they offer ±1% pressure accuracy for stable operation.
No. | Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | DGMX2-3-PB-CW-B-40 | Steel housing, stainless steel valve core, high-tensile spring, NBR seals | Fine particles clogging orifices; spring fatigue from pressure cycling | Use 2μm absolute filter; quarterly spring calibration |
2 | DGMX2-3-PP-BK-B-40 | Steel housing, stainless steel valve core, high-tensile spring, NBR seals | NBR seal degradation from high temperature; housing corrosion from moisture | Monitor oil temp (≤60℃); apply anti-rust coating to housing |
FAQs
Question | Answer |
What hydraulic oil is suitable for Vickers DG4V/DGMX2 valves? | Use ISO VG 32 or 46 hydraulic oil meeting DIN 51524 (HLP grade). Avoid oils with zinc additives, as they can degrade Viton seals and corrode stainless steel components. |
How to resolve spool jamming in DG4V series valves? | Disassemble and clean spool chambers with petroleum ether, inspect for wear. Upgrade to a 3μm inline filter, replace seals, and ensure oil is free of contaminants (ISO 4406 Class 16/13). |
Procurement Guidance
Genuine Vickers valves guarantee seamless compatibility with your hydraulic systems, ensuring precise control and long-term durability. Whether you need replacement valves for emergency repairs or bulk procurement for production lines, we provide authentic products that meet original specifications. Contact our team with your equipment model and operating conditions to get tailored recommendations and professional technical support for optimal integration.
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