Product Overview
The Rexroth DBDS 20 G19/150E (Material No. R901017079) 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 spring-loaded poppet is held against its seat until system pressure at the inlet port generates sufficient force to lift the poppet, diverting excess flow to the tank port and thereby capping the circuit at the preset cracking pressure. With a nominal size of NG20 and a pressure rating of 150 bar, the DBDS 20 G19/150E serves as a compact, fast-responding safety and pressure-limiting element in medium-pressure hydraulic power units, test stands, and machine tool systems. Its direct operation eliminates pilot-stage lag, delivering immediate pressure relief response and stable, repeatable performance across the full operating envelope.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Direct Operated Pressure Relief Valve (Pressure Control Valve) |
| Model Designation | DBDS 20 G19/150E |
| Material Number | R901017079 |
| Nominal Size | NG20 (DIN 24340 / ISO 4401 interface) |
| Operating Pressure | Up to 150 bar (pressure setting range, spring “150”) |
| Adjustment Type | “G19” adjustment element — hex socket screw with protective cap, locknut secured |
| Mounting & Connection | Subplate mounting, ISO 4401 / DIN 24340 standard port pattern |
| Operating Principle | Direct acting, spring-loaded poppet with damping for stable pressure control |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP per DIN 51524); seal compatibility per Rexroth standard |
Engineering Features & Advantages
- Precision Performance: Direct-acting poppet design delivers fast, accurate pressure limitation with minimal override and hysteresis, ensuring stable system pressure even under rapidly changing flow demands.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened and lapped seating surfaces that resist wear and maintain tight shut-off over extended service intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards — NG20 subplate pattern, R901017079 material number, and “G19” adjustment configuration ensure drop-in interchangeability with existing Rexroth DBDS installations.
- 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
With a nominal size of NG20 and a pressure rating of 150 bar, the DBDS 20 G19/150E serves as a compact, fast-responding safety and pressure-limiting element in medium-pressure hydraulic power units, test stands, and machine tool systems.
PRODUCT IMAGES
REXROTH DBDS 20 G19/150E / R901017079 Direct 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 DBDS 20 G19/150E / R901017079 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.