Product Overview
The PARKER ZRE-AB-01-01 (part number 098-91020-0) is a pilot operated check valve designed for leak-free load holding and controlled actuator locking within industrial hydraulic circuits. Manufactured by Parker Hannifin, a global leader in motion and control technologies, this valve belongs to the ZRE series of pilot-operated check valves, which are engineered for line mounting or manifold integration in modular hydraulic systems. The valve operates on a spring-loaded poppet principle: in the free-flow direction, hydraulic fluid passes through the valve with minimal pressure drop, while in the reverse direction the poppet seals against a seat to prevent any return flow. When a pilot pressure signal is applied to the integral pilot port, the poppet is mechanically lifted off its seat, permitting controlled reverse flow. This design ensures that loads are held securely in position without drift when the directional control valve is centered, and enables controlled lowering or retraction when the system commands it. The ZRE-AB-01-01 is a direct-acting, pilot-operated check valve suitable for a wide range of industrial hydraulic applications where reliable load holding, safety, and precise flow control are paramount.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot Operated Check Valve (Hydraulic Valve) |
| Model Designation | ZRE-AB-01-01 / 098-91020-0 |
| Manufacturer | Parker Hannifin |
| Operating Pressure | Up to 350 bar (standard industrial grade, dependent on port size and configuration) |
| Pilot Pressure Ratio | Typically 1:3 to 1:5 (pilot pressure to load pressure, model-specific) |
| Mounting & Connection | Line mount / manifold interface, ISO 228 / SAE standard ports |
| Sealing Principle | Spring-loaded poppet with metal-to-metal or soft seat, leak-free in blocked direction |
| Flow Direction | Free flow one direction, blocked reverse until pilot signal applied |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HLP, HLVP), optional seals for other fluids |
| Temperature Range | -20°C to +80°C (standard NBR seals), higher with optional seal materials |
Engineering Features & Advantages
- Precision Performance: The pilot operated check valve (hydraulic valve) 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 PARKER standards, allowing straightforward retrofit into existing hydraulic systems without rework.
Typical Industrial Applications
The ZRE-AB-01-01 is a direct-acting, pilot-operated check valve suitable for a wide range of industrial hydraulic applications where reliable load holding, safety, and precise flow control are paramount.
PRODUCT IMAGES


PARKER ZRE-AB-01-01 / 098-91020-0 Pilot Operated Check 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 PARKER ZRE-AB-01-01 / 098-91020-0 Proportional Pressure Relief Valve. This Germany-made hydraulic component features a proportional solenoid design, delivering precise, leak-free pressure control for heavy-duty industrial systems.





