Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of Atos Directional Control Valve in China. We warmly welcome you to wholesale bulk Atos Directional Control Valve for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Product Overview
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Atos Directional Control Valves are precision-engineered spool-type dynamic control elements designed for high-performance industrial hydraulic circuits. Operating as core directional control components across standard, proportional, and explosion-proof series, these valves deliver superior fluid distribution, directional spool switching, and dynamic system response. Specifically engineered for demanding modern hydraulic setups-such as closed-loop motion control, high-tonnage pressing systems, dynamic injection molding, and heavy industrial automation-Atos directional control valves integrate optimized fluid-dynamic internals with high-performance solenoid actuators to minimize pressure drop and internal leakage.
Technical Specifications
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| Parameter | Subplate Size 06 (DHI / DHE) | Subplate Size 10 (DKE / DKOR) | Pilot-Operated (DPHE / DPHO Size 16-32) |
| Maximum Working Pressure (Ports A, B, P) | 350 bar (5075 psi) | 350 bar (5075 psi) | 350 bar (5075 psi) |
| Maximum Tank Port Pressure (Port T) | 210 bar (DC) / 160 bar (AC) | 210 bar (DC) / 160 bar (AC) | 210 bar (External Tank) |
| Maximum Flow Rate | 60 to 80 L/min | 160 L/min | 300 to 1000 L/min |
| Operating Fluid Temperature Range | -20 deg C to +80 deg C | -20 deg C to +80 deg C | -20 deg C to +80 deg C |
| Recommended Fluid Viscosity Range | 15 to 100 mm2/s (cSt) | 15 to 100 mm2/s (cSt) | 15 to 100 mm2/s (cSt) |
| Permissible Fluid Viscosity Range | 2.8 to 500 mm2/s (cSt) | 2.8 to 500 mm2/s (cSt) | 2.8 to 500 mm2/s (cSt) |
| Hysteresis (Proportional Types) | Less than 1.5 percent | Less than 1.5 percent | Less than 1.0 percent |
| Switching Time (Energized) | 30 to 50 ms | 45 to 85 ms | 80 to 150 ms |
| Switching Time (De-energized) | 20 to 40 ms | 35 to 60 ms | 60 to 110 ms |
| Protection Class (EN 60529) | IP65 / IP67 (with sealed connector) | IP65 / IP67 (with sealed connector) | IP65 / IP67 (with sealed connector) |
Configuration Options
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- Structural Design: Direct-operated spool design or two-stage pilot-operated construction for larger flow capacities.
- Control Modes: Standard ON-OFF solenoids, high-performance proportional solenoids, manual override levers, hydraulic pilot lines, or pneumatic actuators.
- Feedback System: Optional LVDT position feedback sensors (E-AT and E-RI integrated electronics) for real-time spool position monitoring.
- Nominal Flow Options: Multiple spool options (3-position spring centered, 2-position spring offset) featuring various flow configurations (center closed, open center, regenerative).
- Interface & Mounting: Standardized subplate mounting compliant with ISO 4401, CETOP, and NFPA dimensional specifications.
- Electrical Configurations: 12V DC, 24V DC, 110V AC, 230V AC; option for Hirschmann DIN 43650 connectors, AMP Junior-Timer, or integrated digital electronics cards.
Key Materials and Components
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- Valve Body: High-strength cast iron body processed via precision shell moulding, providing exceptional physical rigidity, high thermal stability, and maximum resistance to high hydraulic pressure expansion.
- Valve Spool: Case-hardened, precision-ground alloy steel spool with micro-lapped clearances to minimize internal fluid leakage, resist abrasion, and maintain surface integrity.
- Solenoid Tubes & Armature: Heavy-duty stainless steel wet-armature tube designed to handle dynamic back-pressures on the tank line while offering high anti-corrosion protection.
- Internal Seals: High-performance NBR (Nitrile) standard seals for mineral oils; optional FKM (Viton) seals for synthetic fluids, high-temperature operations, or aggressive eco-friendly fluids.
Packaging and Transport Protection
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- Individual Protection: Every valve unit undergoes automated washing, oil coating, and sealing of all hydraulic ports using heavy-duty plastic plugs.
- Moisture & Corrosion Control: Enclosed in air-tight VCI (Vapor Corrosion Inhibitor) anti-rust polyethylene bags with integrated silica gel desiccant packs.
- Anti-Vibration & Fixation: Encased within custom molded high-density EPE foam cradles inside reinforced multi-layer corrugated individual cartons.
- Bulk Shipment Packing: Multi-unit orders are consolidated into heat-treated, fumigation-free wooden cases (ISPM 15 compliant), securely strapped with plastic banding and wrapped in multi-layer stretch film.
Applications
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- Plastic Injection Molding Machines: Used for precise cylinder direction switching during mold clamping, core-pulling sequences, and ejector actuation.
- Metal Stamping & Forging Presses: Handles rapid pre-fill valve pilot switching, main slide motion control, and high-pressure hold cycles.
- Die-Casting & Foundry Machinery: Ensures fast response directional shifting for high-speed shot cylinder execution and core control.
- Civil Engineering & Heavy Mobile Machinery: Manages hydraulic winch drives, outrigger extension cylinders, and steering control systems under high shock-load environments.
- Steel Mill Rollers & Metal Processing: Operates main hydraulic tilt tables, shearing machine knife controls, and strip tensioning system actuators.
Related Models
▔▔| Model Code | Valve Type | Mounting Interface | Nominal Size | Max Operating Pressure | Max Flow Rate |
| DHI-0631/2/A-X 24DC | Direct Operated Solenoid Valve | ISO 4401-03 | Size 06 / CETOP 03 | 350 bar | 60 L/min |
| DHI-0713-X 230AC | Direct Operated Solenoid Valve | ISO 4401-03 | Size 06 / CETOP 03 | 350 bar | 80 L/min |
| DHE-0630/2-X 24DC | High-Performance Direct Solenoid | ISO 4401-03 | Size 06 / CETOP 03 | 350 bar | 80 L/min |
| DKE-1711-X 24DC | Direct Operated Solenoid Valve | ISO 4401-05 | Size 10 / CETOP 05 | 350 bar | 160 L/min |
| DKOR-1631/2-X 220AC | Heavy Duty Solenoid Valve | ISO 4401-05 | Size 10 / CETOP 05 | 350 bar | 160 L/min |
| DPHE-2713/D-X 24DC | Two-Stage Pilot Operated Valve | ISO 4401-07 | Size 16 / CETOP 07 | 350 bar | 300 L/min |
| DPHO-4714/D-X 24DC | Two-Stage Pilot Operated Valve | ISO 4401-08 | Size 25 / CETOP 08 | 350 bar | 700 L/min |
| DLHZA-T-040-V31 | Proportional Directional Valve | ISO 4401-03 | Size 06 / CETOP 03 | 350 bar | 40 L/min |
FAQ
▔▔Q1: How do I select the exact Atos model code for replacement?
Look at the physical nameplate mounted on the valve body. The full alphanumeric model code (e.g., DHI-0631/2-X 24DC) defines the spool type, size, coil voltage, seal material, and mounting standard. Providing a photo of this tag allows us to cross-reference and supply an exact drop-in match.
Q2: What oil cleanliness and filtration standard is required?
Standard direct solenoid directional valves require clean mineral oil meeting ISO 4406 cleanliness level 19/16/13 (minimum 25 micron filtration). Proportional valves with integrated electronics or LVDT position feedback require clean oil filtered to ISO 16/14/11 (10 micron filtration or finer) to prevent micro-spool jamming.
Q3: What type of hydraulic oil is compatible with standard Atos valves?
Standard units are compatible with mineral-based hydraulic oils (HL, HLP) according to DIN 51524. For synthetic fluids, water-glycol mixtures, or phosphate esters, specify Viton/FKM seals (option /V in the ordering code).
Contact Us
▔▔We welcome your technical inquiries, Requests for Quotations (RFQs), and requests for detailed technical datasheets. Contact our fluid power engineering team today.
Product Overview
▔▔The Atos DHI-0710 is designed for industrial hydraulic systems requiring reliable fluid flow switching and directional control, the DHI series integrates switching solenoids operating in oil with precise internal geometry to ensure optimum hydraulic efficiency, safety, and operational longevity.
Key Advantages
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AC & DC Solenoid Compatibility: Equipped with wet-armature solenoids available in AC or DC configurations, featuring easy coil replacement without draining system fluid.
High Flow & Pressure Capabilities: Delivers flow rates up to 80 L/min and standard working pressures up to 350 bar (5000 PSI).
Compact & Rugged Design: Features a heavy-duty cast body with precision-machined internal flow channels to minimize pressure drops.
IP65/IP67 Protection Rating: High environmental resistance against dust and moisture ingress for reliable operation in demanding industrial conditions.
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Technical Specifications
▔▔| Parameter Category | Technical Specification / Value |
| Valve Type | Solenoid Direct-Operated Directional Control Valve |
| Model Code | DHI-0710 |
| Number of Ports / Positions | 4-Way / 3-Position (Spring-Centered) |
| Spool Function Code | Type 0 (Closed Center in neutral position: A, B, P, T closed) |
| Maximum Operating Pressure (Ports P, A, B) | 350 bar (5076 PSI) |
| Maximum Backpressure (Port T) | 120 bar (AC) / 210 bar (DC) |
| Maximum Flow Rate | 80 L/min (21.1 US gpm) |
| Fluid Temperature Range | -20°C to +60°C (Standard NBR seals) / up to +80°C (FKM seals) |
| Viscosity Range | 15 to 100 $\text{mm}^2/\text{s}$ (cSt) |
| Fluid Cleanliness Standard | ISO 4406 class 20/18/15 (Recommended filter rating $\le 25\,\mu\text{m}$) |
| Solenoid Voltage Supply | 12V DC, 24V DC, 110V/50-60Hz AC, 230V/50-60Hz AC |
| Duty Cycle | 100% Continuous Duty ($ED$) |
| Enclosure Protection Class | IP65 / IP67 (with properly installed DIN 43650 connector) |
| Approximate Weight | 1.65 kg (Single Solenoid) / 2.15 kg (Double Solenoid) |
Applications
▔▔| Application Sector | Typical Machinery / System | Function of DHI-0710 |
| Industrial Manufacturing | Plastic Injection Molding & Die Casting Machines | Controls clamp movement, core pulls, and ejection cylinders |
| Metal Forming & Tooling | Hydraulic Presses & CNC Stamping Machines | Regulates main press cylinder extension and retraction |
| Material Handling | Overhead Hoists, Forklifts, and Conveyor Platforms | Manages hydraulic lift mechanisms and rotary actuators |
| Construction & Earthmoving | Compact Excavators & Loader Attachments | Controls auxiliary hydraulic implement circuits |
| Power Generation | Hydroelectric Turbine & Steam Valve Actuators | Directs hydraulic pressure for precise turbine governor positioning |
Related Models
▔▔| Model Code | Description | Coil Voltage / Control |
| DHI-0610 / 24DC | 2-Position, 4-Way Solenoid Valve, Standard Spool | 24V DC |
| DHI-0631/2 / 24DC | 2-Position, Direct Solenoid Valve with Spring Return | 24V DC |
| DHI-0710 230/50/60AC | 3-Position, 4-Way Solenoid Valve, Center Closed | 230V AC |
| DHI-0711 24DC | 3-Position, 4-Way Solenoid Valve, Open Center Spool | 24V DC |
| DHI-0713 24DC | 3-Position, 4-Way Solenoid Valve, Tandem Center Spool | 24V DC |
| DHI-0751/2 24DC | 3-Position Solenoid Valve with Custom Spool Profile | 24V DC |
| DHU-0710 24DC | Alternate Series Direct Solenoid Valve (UL Certified) | 24V DC |
| DHE-0710 24DC | High-Performance Direct-Operated Valve (350 bar) | 24V DC |
FAQ
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Q1: What is the primary functional difference between the Atos DHI-0710 and DHI-0711 valves?
Answer: The primary difference lies in the neutral (center) position spool geometry:
DHI-0710 (Spool Type 0): Has a closed center configuration where ports P, A, B, and T are blocked in neutral, allowing pressure to build in port P while holding dynamic loads steady.
DHI-0711 (Spool Type 1): Features an open center configuration where ports A, B, P, and T are connected to the tank in neutral, unloading pump pressure and allowing actuators to freewheel.
Q2: Can the solenoid coils on an Atos DHI-0710 valve be replaced without depressurizing or opening the hydraulic circuit?
Answer: Yes. The DHI-0710 uses wet-armature solenoids with threaded retaining nuts. You can unscrew the retaining nut and slide off the solenoid coil without exposing the hydraulic oil or opening the main hydraulic loop, allowing fast coil replacements during maintenance without oil spills.
Contact Us
▔▔Request a Quote Today to ensure your hydraulic system performs at its best with genuine components from Yanhui Hydraulic.
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