Product Overview
The Rexroth DB 20-1-52/315 (Material Number R900587346) is a direct-operated pressure relief valve from the proven DB series, engineered for precise system pressure limitation and overload protection in industrial hydraulic circuits. As a pilot-operated pressure control valve, it operates on a balanced spool principle: system pressure acts against an adjustable spring force, and when the set pressure is exceeded, the valve opens to divert excess flow to the tank, thereby maintaining stable working pressure. The DB 20-1-52/315 is designed for inline mounting and is widely deployed as a safety and pressure-regulating component in demanding hydraulic power units, presses, and machine tool systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Control Valve (Pressure Relief Valve) |
| Model Designation | DB 20-1-52/315 / R900587346 |
| Operating Pressure | Up to 315 bar (pressure setting code /315) |
| Mounting & Connection | Inline mounting, standard ISO / manufacturer interface |
| Actuation Type | Direct-operated, spring-loaded adjustment |
| Adjustment Range | Up to 315 bar, adjustable via set screw |
| Fluid Compatibility | Mineral oil based hydraulic fluids (HL, HLP) |
Engineering Features & Advantages
- Precision Pressure Limiting: Balanced spool design ensures accurate and repeatable pressure regulation with minimal hysteresis across the full adjustment range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust spring and sealing elements resistant to pressure spikes and thermal cycling.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Stable Overload Protection: Fast response to pressure surges protects downstream components such as cylinders, motors, and directional valves from damage.
Typical Industrial Applications
This pressure relief valve is commonly used in hydraulic power units for plastic injection molding machines, metallurgical presses, construction and marine hydraulic systems, and CNC machine tool clamping circuits. It serves as a critical safety and pressure-regulating element wherever reliable system pressure limitation is required.
PRODUCT IMAGES
REXROTH DB 20-1-52/315 / R900587346 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 DB 20-1-52/315 / R900587346 Pressure Relief Valve. This Germany-made hydraulic component features a direct-operated poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.