Product Overview
The ATOS RZGO-A-033/315 31 is a high-performance proportional pressure relief valve manufactured by ATOS, a global leader in electrohydraulic components. Operating on a poppet-type, normally closed design, this valve provides infinitely variable pressure control proportional to the electrical input signal supplied to its integrated proportional solenoid. Unlike conventional on-off relief valves, the RZGO series enables precise, dynamic pressure regulation in hydraulic circuits, making it an essential component for systems requiring smooth pressure ramping, load holding, and overload protection. The “033” size designation indicates a nominal flow capacity of 33 l/min, while the “315” denotes a maximum adjustable pressure of 315 bar. The “31” suffix identifies the specific hydraulic and electrical configuration within the ATOS RZGO series. This valve is engineered for direct integration into industrial power units and manifold blocks, offering exceptional repeatability and low hysteresis for demanding closed-loop control applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Pressure Relief Valve |
| Model Designation | RZGO-A-033/315 31 |
| Operating Pressure | Up to 315 bar (adjustable via proportional solenoid) |
| Nominal Flow Rate | 33 l/min (size 033) |
| Mounting & Connection | ISO 4401 / CETOP 3 (NG6) subplate mounting interface |
| Actuation Type | Proportional solenoid with integrated pressure transducer feedback (A variant) |
| Control Signal | Analog voltage or current (0–10 V DC / 4–20 mA), depending on amplifier card |
| Hysteresis | ≤ 2% of max regulated pressure |
| Response Time | ≤ 30 ms (typical, dependent on system volume and amplifier tuning) |
| Fluid Compatibility | Mineral oil-based hydraulic fluids (ISO VG 32–68), filtered to ISO 4406 class 18/16/13 or better |
| Seal Material | NBR (Buna-N) standard; FKM available for high-temperature or phosphate-ester fluids |
Engineering Features & Advantages
- Precision Performance: The proportional pressure relief valve delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original ATOS OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
This valve is engineered for direct integration into industrial power units and manifold blocks, offering exceptional repeatability and low hysteresis for demanding closed-loop control applications.
PRODUCT IMAGES
ATOS RZGO-A-033/315 31 Proportional Pressure Relief Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine ATOS RZGO-A-033/315 31 Proportional Pressure Relief Valve. This Italy-made 315 bar hydraulic component features a direct-operated poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.