Product Overview
The ATC Z-PPV20085020 is a precision-engineered proportional pressure relief valve designed for advanced electro-hydraulic control systems. Manufactured by ATC, this valve functions as a pilot-operated, proportional pressure-limiting device that continuously modulates system pressure in direct response to an electrical command signal. Unlike conventional fixed-setting relief valves, the Z-PPV20085020 integrates a high-resolution proportional solenoid with a precision-machined spool and damping network, enabling infinitely variable pressure adjustment, smooth ramping, and excellent repeatability. It serves as a critical interface between electronic control amplifiers and hydraulic power circuits, providing accurate pressure regulation, overload protection, and controlled pressure decay in demanding industrial machinery.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Pressure Relief Valve (Pilot-Operated, Electro-Hydraulic) |
| Model Designation | Z-PPV20085020 |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar rated; pilot stage optimized for fine pressure control) |
| Mounting & Connection | Standard ISO 4401 / CETOP Subplate Interface; DIN 43650 solenoid connector |
| Actuation Method | Proportional solenoid with integrated position feedback (LVDT optional) |
| Command Signal | 0–10 V DC / 4–20 mA (via proportional amplifier) |
| Pressure Adjustment Range | Infinitely variable across full rated range (e.g., 10–200 bar, 20–350 bar depending on configuration) |
| Hysteresis & Repeatability | < 2% hysteresis; < 1% repeatability at constant temperature |
| Response Time | Typical 20–50 ms (depending on system volume and signal ramp) |
| Fluid Compatibility | Mineral oil, HLP/HM, synthetic and biodegradable fluids (NBR/FKM seals) |
| Filtration Requirement | ISO 4406 18/16/13 or better (10 µm nominal) |
Engineering Features & Advantages
- Precision Performance: The proportional pressure relief valve (pilot-operated, electro-hydraulic) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original ATC OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
It serves as a critical interface between electronic control amplifiers and hydraulic power circuits, providing accurate pressure regulation, overload protection, and controlled pressure decay in demanding industrial machinery.
PRODUCT IMAGES




ATC Z-PPV20085020 Proportional Pressure Relief Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine ATC Z-PPV20085020 Proportional Pressure Relief Valve. This German-made hydraulic component features a precise proportional solenoid, delivering leak-free, reliable fluid control for heavy-duty industrial systems.