Product Overview
The ATOS RZGO-A-033/210 31 / E-MI-AC-01F/RR 22 /2 is a high-performance proportional pressure relief valve manufactured by ATOS, a global leader in electrohydraulic control technology. This valve operates on a two-stage, piloted relief principle in which a proportional solenoid (E-MI-AC-01F/RR 22 /2) acts on the pilot stage to infinitely modulate the pressure setting in proportion to the electrical reference signal. The RZGO series is engineered for precise, closed-loop pressure control in demanding industrial hydraulic circuits, delivering smooth, stepless pressure regulation with minimal hysteresis and excellent repeatability. The RZGO-A-033/210 31 designation indicates a size 033 (NG10 / CETOP 5 interface) valve with a maximum adjustable pressure of 210 bar, making it an ideal solution for systems requiring accurate pressure limiting, load holding, or pressure-controlled sequencing.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Pressure Relief Valve (Piloted, Two-Stage) |
| Model Designation | RZGO-A-033/210 31 / E-MI-AC-01F/RR 22 /2 |
| Valve Size | NG10 (CETOP 5 / ISO 4401-05) |
| Maximum Adjustable Pressure | 210 bar (up to 315 bar system pressure capability) |
| Solenoid / Actuation | Proportional solenoid E-MI-AC-01F/RR 22 /2 with integrated pressure transducer feedback |
| Control Signal | Analog reference (0–10 V / 4–20 mA) with closed-loop pressure feedback |
| Operating Pressure | Standard Industrial Grade (up to 210 bar regulated, 315 bar peak) |
| Mounting & Connection | Subplate mounting per ISO 4401-05 / CETOP 5, 4-way interface |
| Hysteresis & Repeatability | ≤ 1% of max pressure (typical), high repeatability |
| Response Time | Fast dynamic response suitable for closed-loop pressure control |
Engineering Features & Advantages
- Precision Performance: The proportional pressure relief valve (piloted, two-stage) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original ATOS standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
The RZGO-A-033/210 31 designation indicates a size 033 (NG10 / CETOP 5 interface) valve with a maximum adjustable pressure of 210 bar, making it an ideal solution for systems requiring accurate pressure limiting, load holding, or pressure-controlled sequencing.
PRODUCT IMAGES



ATOS RZGO-A-033/210 31 / E-MI-AC-01F/RR 22 /2 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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Shop the genuine ATOS RZGO-A-033/210 31 / E-MI-AC-01F/RR 22 /2 Proportional Pressure Relief Valve. This Italian-made hydraulic component features a proportional solenoid pilot, delivering precise, leak-free pressure control for heavy-duty industrial systems.