Product Overview
The Rexroth Z2S 10-1-37/ (Material No. R900407394) is a pilot operated check valve designed for leak-free load holding and controlled blocking of flow in hydraulic circuits. Part of the Rexroth Z2S series of modular sandwich plate valves, this unit is manufactured to ISO 4401 size 10 (NG10 / CETOP 5) interface standards, allowing direct stacking onto directional control valves or use as a standalone line-mounting component. The valve permits free flow in one direction and blocks reverse flow until a pilot pressure signal is applied to the pilot port, at which point the poppet is hydraulically unseated to allow controlled return flow. This working principle makes the Z2S 10-1-37/ a critical safety and load-holding element in industrial hydraulic systems, preventing actuator drift, uncontrolled descent, and pressure-line backflow during pump shutdown or valve neutral conditions.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pilot Operated Check Valve (Modular Sandwich Plate Design) |
| Model Designation | Z2S 10-1-37/ (R900407394) |
| Nominal Size | NG10 (CETOP 5 / ISO 4401-05) |
| Operating Pressure | Up to 315 bar (working pressure, port A/B) |
| Pilot Pressure Ratio | Standard pilot ratio (approximately 1:3.3 area ratio, model-dependent) |
| Cracking / Opening Behavior | Poppet-type, hydraulically piloted unseating |
| Mounting & Connection | ISO 4401 / CETOP 5 subplate interface, sandwich mounting |
| Sealing | NBR (Buna-N) standard; FKM available on request |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP per DIN 51524) |
Engineering Features & Advantages
- Precision Performance: Poppet-type sealing design delivers virtually leak-free blocking of reverse flow, ensuring reliable load holding and preventing actuator drift in vertical or suspended load applications.
- Pilot-Controlled Unseating: Hydraulic pilot signal precisely unseats the poppet for controlled return flow, enabling smooth lowering and sequencing operations without pressure spikes.
- Modular Sandwich Construction: Compact NG10 sandwich plate format integrates directly into existing valve stacks, reducing piping, leak points, and installation time.
- 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 REXROTH OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
This working principle makes the Z2S 10-1-37/ a critical safety and load-holding element in industrial hydraulic systems, preventing actuator drift, uncontrolled descent, and pressure-line backflow during pump shutdown or valve neutral conditions.
PRODUCT IMAGES
REXROTH Z2S 10-1-37/ / R900407394 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.
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- 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 Z2S 10-1-37/ / R900407394 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.