Product Overview
The Rexroth DBW30B1-5X/315-6EG24N9K4 (Material No. R900906773) is a pilot-operated, solenoid-controlled pressure relief valve from the proven DBW series, size 30, designed for precise system pressure limitation and electrical unloading in industrial hydraulic power units. The valve combines a pilot-operated pressure relief cartridge with a directional solenoid pilot valve, allowing it to function both as a safety relief valve and as a two-position unloading valve controlled by an external electrical signal. When the solenoid is de-energized, the valve limits system pressure to the set value; when energized, it vents the pilot stage to tank, allowing the main stage to open and unload the pump at low residual pressure. This dual function makes it a standard choice for energy-efficient hydraulic circuits requiring controlled pressure build-up and rapid depressurization.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pilot-Operated Solenoid Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | DBW30B1-5X/315-6EG24N9K4 |
| Material / Order Number | R900906773 |
| Nominal Size | NG30 (Size 30, ISO 6264 / CETOP interface) |
| Pressure Setting | 315 bar (maximum adjustable pressure rating) |
| Series | 5X (Series 50, current production design) |
| Solenoid Voltage | 24 V DC (EG24 designation) |
| Solenoid Configuration | Single solenoid, spring return, N9 (NBR/FKM-compatible wet-pin armature) |
| Electrical Connection | K4 — DIN EN 175301-803 (ISO 4400) 3-pole plug connector |
| Mounting & Connection | Subplate mounting, ISO 6264 / DIN 24340 Form A, 4-bolt flange |
| Hydraulic Fluid | Mineral oil per DIN 51524 (HL, HLP); other fluids on request |
Engineering Features & Advantages
- Precision Performance: The hydraulic valve — pilot-operated solenoid pressure relief valve (pressure control 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 (maximum adjustable pressure rating), supporting stable operation across the full working range.
Typical Industrial Applications
R900906773) is a pilot-operated, solenoid-controlled pressure relief valve from the proven DBW series, size 30, designed for precise system pressure limitation and electrical unloading in industrial hydraulic power units.
PRODUCT IMAGES
REXROTH DBW30B1-5X/315-6EG24N9K4 / R900906773 Solenoid Operated Pressure Relief 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 DBW30B1-5X/315-6EG24N9K4 / R900906773 Solenoid Operated Pressure Relief Valve. This Germany-made 24V DC hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.