Product Overview
The Rexroth Z1FG10P5-31/V (Material Number R901162976) is a direct-operated, sandwich-type throttle valve from the proven Z1FG series, engineered for precise flow control in industrial hydraulic systems. As a member of the Rexroth modular valve family, this unit is designed for sandwich plate mounting between a directional control valve and its subplate, allowing infinitely variable adjustment of actuator speed by metering the flow passing through the P (pressure) port. The valve operates on a simple, robust throttling principle: a manually adjustable set screw positions a throttling spool to vary the effective flow area, delivering accurate, repeatable speed regulation without the complexity of proportional electronics. The “10” size designation corresponds to NG10 (CETOP 5 / ISO 4401-05) mounting, while the “P5” code identifies the throttling function acting in the pressure line. With a maximum operating pressure of 315 bar and a nominal flow capacity of 80 L/min, the Z1FG10P5-31/V is a dependable, low-maintenance solution for machine builders requiring fine-tuned flow control in compact modular stack assemblies.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Throttle Valve (Flow Control / Modular Sandwich Valve) |
| Model Designation | Z1FG10P5-31/V / R901162976 |
| Manufacturer | Bosch Rexroth |
| Size / Mounting Pattern | NG10 (CETOP 5 / ISO 4401-05 / NFPA D05) |
| Throttling Position | P-line (pressure port) metering, code “P5” |
| Adjustment Type | Manual set screw with locknut, infinitely variable |
| Maximum Operating Pressure | 315 bar (P, A, B ports) |
| Nominal Flow Capacity | Up to 80 L/min (NG10 standard) |
| Seal Material | NBR (FKM available on request) |
| Hydraulic Fluid | Mineral oil HL/HLP per DIN 51524; viscosity 10–500 mm²/s |
| Fluid Temperature Range | -20 °C to +80 °C (NBR seals) |
Engineering Features & Advantages
- Precision Performance: The hydraulic throttle valve (flow control / modular sandwich valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original REXROTH standards, allowing straightforward retrofit into existing hydraulic systems without rework.
- Rated Capability: Rated for pressure ratings of 315 bar (P, A, B ports) and flow rates up to 80 L/min, supporting stable operation across the full working range.
Typical Industrial Applications
The Rexroth Z1FG10P5-31/V (Material Number R901162976) is a direct-operated, sandwich-type throttle valve from the proven Z1FG series, engineered for precise flow control in industrial hydraulic systems.
PRODUCT IMAGES

REXROTH Z1FG10P5-31/V / R901162976 Throttle 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 Z1FG10P5-31/V / R901162976 Pilot Operated Check Valve. This Germany-made hydraulic component features a leak-free poppet design, delivering reliable fluid control for heavy-duty industrial systems.