Product Overview
The Rexroth Z1S 6 P05-40/V (Material Number R901086051) is a direct-operated, spring-loaded check valve designed for modular sandwich plate mounting in industrial hydraulic systems. As part of the Rexroth Z1S series, this valve functions as a reliable one-way flow control element, permitting free flow in one direction while positively blocking reverse flow with zero leakage. The “P05” designation indicates a nominal flow capacity of 5 L/min, while the “40” reflects a maximum operating pressure of 400 bar, making it suitable for high-pressure hydraulic circuits. The “V” suffix denotes FKM (Viton) seal material for enhanced fluid and temperature compatibility. This valve is engineered for integration into vertical stacking assemblies (sandwich plates) per ISO 4401 / DIN 24340 standards, providing a compact, space-efficient solution for load holding, circuit isolation, and anti-reverse flow protection in demanding industrial applications.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Check Valve (Modular / Sandwich Plate Design) |
| Model Designation | Z1S 6 P05-40/V / R901086051 |
| Nominal Flow Rate | 5 L/min (P05 flow class) |
| Maximum Operating Pressure | Up to 400 bar (40 pressure class) |
| Cracking Pressure | Standard spring-loaded cracking pressure (approx. 1.5 bar) |
| Mounting & Connection | Modular sandwich plate mounting per ISO 4401 / DIN 24340 (NG6 / CETOP 3 interface) |
| Seal Material | FKM (Viton) — “V” suffix |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HLP-D, HV) per DIN 51524 |
| Operating Temperature Range | -20°C to +80°C (FKM seals extend upper limit) |
| Direction of Flow | Free flow in one direction; leak-free blocking in reverse |
Engineering Features & Advantages
- Precision Performance: Spring-loaded poppet design ensures rapid, positive closure and zero leakage in the blocked direction, providing reliable anti-reverse flow protection and load holding capability in high-pressure circuits.
- 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 REXROTH OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
This valve is engineered for integration into vertical stacking assemblies (sandwich plates) per ISO 4401 / DIN 24340 standards, providing a compact, space-efficient solution for load holding, circuit isolation, and anti-reverse flow protection in demanding industrial applications.
PRODUCT IMAGES
REXROTH Z1S 6 P05-40/V / R901086051 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.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH Z1S 6 P05-40/V / R901086051 Pilot-Operated Check Valve. This German-made hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.