Atos Pressure Relief Valves

Product Overview

The Atos Pressure Relief Valve is engineered for high-performance industrial hydraulics, serving as a critical component for precise system pressure limitation and regulation. Positioned within Atos's advanced proportional and modular valve families, this series combines robust spool design with high-response electrohydraulic control to deliver exceptional pressure stability in demanding hydraulic circuits.

Key Advantages

• High Precision Pressure Control: Ensures minimal pressure overshoot and rapid stabilization under fluctuating load conditions.
• Advanced Proportional Response: Integrates high-dynamic proportional solenoids for seamless remote pressure adjustments via electronic drivers.
• Superior Durability: Built with hardened internal spools and optimized flow paths to resist cavitation and extend operational lifespan.
• Modular Compatibility: Easily integrates into standard ISO subplate mounting configurations and modular stack systems.

Technical Specifications

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Configuration Options

• Structure: Available in direct-operated, pilot-operated, and modular sandwich plate designs.
• Control Options: Manual adjustment screw, proportional solenoid control, or remote pressure port control.
• Feedback Options: Integrated inductive position transducers for closed-loop spool position feedback.
• Rated Flow & Interfaces: Standard ISO 4401 interface sizes ranging from CETOP 03 (NG6) to CETOP 05 (NG10) and CETOP 07 (NG16).
• Mounting Configuration: Subplate mounting, manifold block integration, or inline threaded connections.
• Electrical Configuration: DIN 43650 standard plugs, M12 connectors, and compatibility with external Atos digital drivers (E-MI-AC, E-BM-PS).

Key Materials and Components

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• Valve Body: High-strength ductile iron or forged steel castings designed to withstand high fatigue cycles and peak pressure spikes.
• Main Spool: Case-hardened, precision-ground alloy steel treated with wear-resistant coatings to minimize friction and internal leakage.
• Internal Seals: Fluorocarbon (FKM) elastomer seals providing excellent thermal resistance and broad compatibility with petroleum-based and synthetic hydraulic fluids.
• Solenoid Armature: Corrosion-protected magnetic components engineered for consistent wet-pin operation and rapid heat dissipation.

Packaging and Transport Protection

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• Industrial Packaging: Individually sealed in heavy-duty polyethylene bags to prevent contamination and moisture ingress during transit.
• Protection & Cushioning: Wrapped in custom-molded shock-absorbing foam or corrugated inserts to safeguard exposed ports, control knobs, and electrical connectors.
• Secure Fixation: Valves are firmly secured within reinforced double-wall cartons or wooden crates to eliminate shifting during freight handling.
• Bulk Shipping: Palletized and shrink-wrapped with clear labeling indicating model numbers, handling instructions, and batch quantities for industrial distribution.

Applications

• Injection Molding Machines: Regulates clamping force pressure and injection pressure profiles to ensure consistent part dimensions.
• Metal Forming Presses: Controls main ram tonnage and prevents system overload during high-load pressing phases.
• Steel Mill Auxiliary Equipment: Manages hydraulic clamping and roll balancing circuits under harsh, high-temperature conditions.
• Industrial Test Rigs: Provides precise, repeatable pressure loading for durability testing of automotive and aerospace components.

Related Models

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FAQ

Q: How do I confirm the exact model code for replacement?

A: Check the identification plate stamped on the valve body. Ensure you verify the size code, pressure range suffix, and electrical connector type.

Q: What is the recommended fluid filtration precision?

A: For optimal reliability, maintain a minimum filtration level of 25/22/19 ISO 4406 or better, using a 10-micron absolute filter.

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