Product Overview
The Rexroth Z1S 16 P3-13 (Material No. R901B62206) is a modular sandwich plate check valve engineered for direct mounting between a directional control valve and its subplate in accordance with ISO 4401 / DIN 24340 (CETOP) interface standards. As a member of the Rexroth Z1S series, this valve provides reliable, leak-free unidirectional flow control by permitting free flow in one direction while positively blocking reverse flow. The P3-13 designation indicates a specific spring configuration and cracking pressure characteristic, ensuring consistent opening behavior across the operating range. With a nominal size of NG16 (Size 16), this sandwich plate check valve is designed for high-flow industrial circuits where compact, stackable hydraulic control is required. Its modular design allows seamless integration into existing manifold assemblies without additional piping, reducing installation time, leakage points, and overall system footprint.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Sandwich Plate Check Valve (Modular Flow Control Valve) |
| Model Designation | Z1S 16 P3-13 / R901B62206 |
| Nominal Size | NG16 (Size 16) |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Flow Direction | Free flow in one direction; leak-free blocking in reverse |
| Mounting & Connection | Sandwich plate design, ISO 4401 / DIN 24340 / CETOP interface |
| Sealing | NBR (Buna-N) standard; FKM available on request |
Engineering Features & Advantages
- Precision Performance: The P3-13 spring configuration delivers a defined cracking pressure, ensuring stable and repeatable check valve opening characteristics for precise flow control in demanding hydraulic circuits.
- Leak-Free Reverse Blocking: Precision-ground poppet and seat geometry provides positive sealing in the blocked direction, preventing backflow and protecting downstream components from pressure surges.
- Modular Sandwich Construction: Designed for direct stacking between directional valves and subplates, eliminating external piping, reducing potential leak points, and simplifying system assembly and maintenance.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust materials and heat-treated 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.
Typical Industrial Applications
This Rexroth Z1S 16 P3-13 sandwich plate check valve is widely deployed in heavy industrial hydraulic systems, including plastic injection molding machines, metallurgical presses and rolling mills, construction and marine hydraulic power units, and CNC machine tool clamping circuits. Its modular design makes it particularly suited for manifold-based systems requiring compact, stackable flow control with reliable reverse-flow protection.
PRODUCT IMAGES
Rexroth Z1S 16 P3-13/ / R901B62206 Sandwich Plate Check 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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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH Z1S 16 P3-13/ / R901B62206 Directional Seat Valve. This Germany-made hydraulic component features a poppet-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.