Product Overview
The Rexroth Z1S 6 C05-41/V (material number R901086081) is a direct-operated, spring-loaded check valve designed for leak-free load holding and flow direction control in industrial hydraulic systems. As a member of the Rexroth Z1S series of modular sandwich plate valves, this unit blocks flow in one direction while permitting free flow in the opposite direction, opening at a defined cracking pressure to maintain system integrity. The valve is engineered for subplate mounting in accordance with ISO 4401 / DIN 24340 (NG6 / CETOP 3) interface standards, allowing direct stacking beneath directional control valves without additional piping. With a nominal size of 6 and a cracking pressure of approximately 0.5 bar (C05 designation), the Z1S 6 C05-41/V is suited for precise load-holding circuits, pilot-operated directional valve isolation, and pressure retention duties in compact manifold assemblies.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Check Valve (Modular Sandwich Plate, Direct-Operated) |
| Model Designation | Z1S 6 C05-41/V / R901086081 |
| Nominal Size | NG6 (CETOP 3 / ISO 4401-03) |
| Cracking Pressure | C05 — approx. 0.5 bar (spring-loaded) |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Mounting & Connection | Subplate / Sandwich plate mounting per ISO 4401, NG6 interface |
| Sealing Material | NBR (Viton / FKM available on request) |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP, HLPD, HVLP) |
Engineering Features & Advantages
- Precision Performance: Direct-operated poppet/seat design delivers fast, reliable closing with minimal leakage, ensuring dependable load holding and flow blocking in critical circuits.
- Modular Sandwich Construction: NG6 sandwich plate format enables direct stacking between directional valves and subplates, reducing piping, leak points, and installation time.
- Defined Cracking Pressure: The C05 spring (approx. 0.5 bar) provides consistent opening characteristics for controlled flow release and stable system response.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, including material number R901086081.
Typical Industrial Applications
The Rexroth Z1S 6 C05-41/V check valve is widely deployed in plastic injection molding machines, metallurgical presses, CNC machine tools, and general industrial power units where reliable flow blocking
PRODUCT IMAGES
REXROTH Z1S 6 C05-41/V / R901086081 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 REXROTH Z1S 6 C05-41/V / R901086081 Pilot-Operated Check Valve. This Germany-made hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.