Product Overview
The Rexroth DBD S20 K1C/315 is a direct operated pressure relief valve from the proven DBD series, engineered by Bosch Rexroth to limit and safeguard system pressure in industrial hydraulic circuits. As a pressure control valve, it operates on a direct-acting poppet principle: a spring-loaded poppet remains seated until system pressure at the inlet port exceeds the set value, at which point the poppet lifts and diverts excess flow to the tank port, maintaining the circuit at the adjusted pressure level. The S20 designation indicates a size 20 valve with a threaded cartridge-style body, while the K1C adjustment type provides a protected hexagon socket with locknut for tamper-resistant pressure setting. The 315 code denotes a pressure rating of up to 315 bar, making this valve suitable for high-pressure industrial power units, presses, and test stands where precise, repeatable pressure limitation is mandatory.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Direct Operated Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | DBD S20 K1C/315 |
| Manufacturer | Bosch Rexroth |
| Size / Nominal Diameter | NG20 (Size 20) |
| Operating Pressure | Up to 315 bar (pressure setting range per model code) |
| Adjustment Type | K1C — Hexagon socket with locknut, protected adjustment |
| Mounting & Connection | Threaded cartridge mounting, standard Rexroth interface |
| Actuation | Direct spring-loaded poppet, hydraulic pilot-free operation |
Engineering Features & Advantages
- Precision Pressure Limiting: Direct-acting poppet design delivers fast, repeatable response to pressure spikes, protecting downstream components from overpressure events.
- Tamper-Resistant Adjustment: The K1C hexagon socket with locknut allows accurate pressure setting while preventing unintended adjustment drift during operation.
- High-Pressure Capability: Rated to 315 bar, suitable for demanding industrial circuits requiring robust pressure control at elevated working pressures.
- Industrial Reliability: Built for continuous operation under severe industrial conditions with proven Rexroth valve manufacturing quality.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth DBD series standards for drop-in servicing.
Typical Industrial Applications
This valve is commonly deployed in hydraulic power units and test benches as a system pressure safety and limiting valve, in plastic injection molding machines for clamping and injection circuit protection, in metallurgical presses and forming equipment, in machine tool hydraulic systems, and in general industrial hydraulic circuits where reliable direct-operated pressure relief is required up to 315 bar.
PRODUCT IMAGES
Rexroth DBD S20 K1C/315 Direct Operated Pressure Relief Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH DBD S20 K1C/315 Pressure Relief Valve. This Germany-made 315 bar hydraulic component features a direct-operated poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.