Product Overview
The Rexroth DBDS 10 P1A/315 (Material No. R900424158) is a direct operated pressure relief valve from the proven DBDS series, engineered by Bosch Rexroth for precise system pressure limitation and protection in industrial hydraulic circuits. This valve operates on a direct-acting poppet principle: a precision-ground poppet is held against its seat by an adjustable spring, and when inlet pressure exceeds the set value, the poppet lifts to discharge excess flow to the tank port, thereby capping system pressure at the desired level. With a size 10 (NG10) mounting interface and a pressure rating of 315 bar, the DBDS 10 P1A/315 is designed for compact, high-pressure subplate mounting installations where fast, reliable response and minimal pressure overshoot are essential. Its direct operated design eliminates pilot-stage leakage paths, making it particularly suitable for clamping circuits, accumulator charging systems, and as a safety backup in demanding industrial power units.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Direct Operated Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | DBDS 10 P1A/315 |
| Material Number | R900424158 |
| Nominal Size | NG10 (Size 10) |
| Operating Pressure | Up to 315 bar (set pressure range) |
| Adjustment Type | Adjustable spring, protected hex socket screw (P1A adjustment style) |
| Mounting & Connection | Subplate mounting, ISO 4401 / DIN 24340 NG10 interface |
| Port Configuration | P (inlet) and T (tank) ports per standard NG10 pattern |
| Sealing Material | NBR (standard mineral oil compatibility) |
| Hydraulic Fluid | Mineral oil HL/HLP per DIN 51524, viscosity 10–800 mm²/s |
Engineering Features & Advantages
- Precision Pressure Limiting: Direct-acting poppet design delivers fast response to pressure spikes with minimal overshoot, protecting downstream components and maintaining stable circuit pressure.
- Zero Pilot Leakage: Because the valve is direct operated with no pilot stage, there is no continuous pilot oil leakage, improving energy efficiency and reducing heat generation in holding circuits.
- 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 OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
Its direct operated design eliminates pilot-stage leakage paths, making it particularly suitable for clamping circuits, accumulator charging systems, and as a safety backup in demanding industrial power units.
PRODUCT IMAGES
REXROTH DBDS 10 P1A/315 / R900424158 Direct Operated Pressure Relief Valve
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Shop the genuine REXROTH DBDS 10 P1A/315 / R900424158 Pressure Relief Valve. This German-made hydraulic component features a direct-operated poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.