Product Overview
The Rexroth WZ27 25.50 directional spool valve (material number 93177259) is a direct-operated, manually actuated spool valve engineered for precise control of start, stop, and direction of hydraulic fluid flow in industrial power units. As part of the Rexroth WZ series, this valve utilizes a hardened, precision-ground spool within a high-tolerance housing bore to deliver reliable switching performance with minimal internal leakage. The WZ27 designation indicates a 2-position (2-way) spool configuration with a nominal size of 25 mm, making it suitable for medium-to-high flow circuits where dependable directional control is required. Its robust cast-iron body and manual lever actuation make it a preferred choice for demanding stationary and mobile hydraulic systems requiring direct operator control.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Directional Spool Valve (Manual Actuation) |
| Model Designation | WZ27 25.50 / 93177259 |
| Nominal Size (NG) | 25 mm (NG25) |
| Spool Configuration | 2-Position, 2-Way (2/2) — 25.50 spool type |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Actuation Type | Manual lever / hand-operated |
| Mounting & Connection | Subplate mounting per ISO 4401 / DIN 24340 (NG25 pattern) |
| Sealing Material | NBR (Buna-N) — compatible with mineral-based hydraulic fluids |
| Body Material | High-strength cast iron / steel housing |
Engineering Features & Advantages
- Precision Spool Metering: The hardened and ground spool ensures accurate flow direction control with minimal internal leakage and long service life, even under continuous cycling.
- Manual Lever Actuation: Provides direct, tactile operator control with a clear detent feel for reliable 2-position switching in environments where electrical actuation is impractical or undesirable.
- High-Pressure Capability: Rated for continuous operation up to 315 bar, suitable for demanding industrial hydraulic circuits requiring robust directional control.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, including high cycle rates, pressure spikes, and contaminated environments.
- 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 Rexroth WZ27
PRODUCT IMAGES

REXROTH WZ27 25.50 / 93177259 Directional Spool 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 WZ27 25.50 / 93177259 Solenoid Directional Spool Valve. This German-made hydraulic component features a robust spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.