Product Overview
The Rexroth DB 10-1-44/200 W65 (Material No. R900372794) is a direct-operated pressure relief valve from the proven DB series, engineered by Bosch Rexroth for reliable system pressure limitation and overload protection in industrial hydraulic circuits. This valve operates on a spring-loaded poppet principle: system pressure acts on the valve poppet, and when the force exceeds the preset spring force, the poppet lifts off its seat to discharge excess fluid to the tank port, thereby maintaining the circuit at the desired pressure level. The “DB” designation identifies it as a pressure relief valve in Rexroth’s pressure control valve family, while the “10” size code corresponds to NG10 (nominal size 10) with a CETOP 3 / ISO 4401-03 mounting pattern. The “200” in the model code indicates a pressure adjustment range up to 200 bar, and the “W65” suffix denotes a specific adjustment and sealing variant. As a direct-acting design, this valve offers fast response to pressure surges and is well suited to protecting pumps, cylinders, and downstream components in demanding industrial power units.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pressure Control Valve (Pressure Relief Valve) |
| Model Designation | DB 10-1-44/200 W65 |
| Material Number | R900372794 |
| Nominal Size | NG10 (Size 10) |
| Pressure Adjustment Range | Up to 200 bar (spring range per model code) |
| Operating Pressure | Standard Industrial Grade (Up to rated 200 bar) |
| Actuation Principle | Direct-operated, spring-loaded poppet / seat design |
| Mounting & Connection | Subplate mounting, ISO 4401-03 / CETOP 3 interface |
| Adjustment Element | W65 variant — mechanical adjustment (per Rexroth configuration) |
| Hydraulic Fluid | Mineral oil based hydraulic fluids (HL, HLP per DIN 51524) |
Engineering Features & Advantages
- Precise Pressure Limiting: The direct-operated poppet design responds rapidly to pressure peaks, providing dependable overpressure protection and accurate pressure setting repeatability across the 200 bar range.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- 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
As a direct-acting design, this valve offers fast response to pressure surges and is well suited to protecting pumps, cylinders, and downstream components in demanding industrial power units.
PRODUCT IMAGES
REXROTH DB 10-1-44/200 W65 / R900372794 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.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine REXROTH DB 10-1-44/200 W65 / R900372794 Pressure Relief Valve. This German-made hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.