Product Overview
The Rexroth ZDB6VP2-4X/315V (Material No. R900409898) is a direct-operated pressure relief valve from the proven ZDB6 series, designed as a sandwich (stack-mounting) plate valve in accordance with ISO 4401 / DIN 24340 size 6 (NG6 / CETOP 3). It functions as a pilot-operated pressure control element within the ZDB6V configuration, where the “V” designation indicates an integrated pressure relief function with a venting (external pilot) port. The valve limits system pressure by diverting excess flow to the tank circuit once the set pressure is reached, thereby protecting downstream components from overpressure. With a nominal pressure rating of 315 bar, this model is engineered for high-pressure industrial hydraulic systems requiring precise, repeatable pressure limitation and stable operation across varying flow conditions.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve — Pressure Control Valve (Pressure Relief Valve) |
| Model Designation | ZDB6VP2-4X/315V |
| Material Number | R900409898 |
| Operating Pressure | Up to 315 bar (nominal pressure rating) |
| Size / Nominal Diameter | NG6 (CETOP 3 / ISO 4401 size 6) |
| Mounting & Connection | Sandwich plate design, ISO 4401 / DIN 24340 port pattern |
| Adjustment Type | Mechanical pressure adjustment (set screw with lock nut) |
| Pilot / Venting Configuration | “V” version — external pilot / venting port |
Engineering Features & Advantages
- Precise Pressure Limiting: Direct-operated spool and spring mechanism delivers accurate, repeatable pressure setting with minimal hysteresis across the full 315 bar range.
- Sandwich Plate Construction: Compact NG6 stack-mounting design allows integration directly between directional valve and manifold, saving installation space and reducing piping complexity.
- Venting Capability: The “V” configuration provides an external pilot/vent port, enabling remote pressure control or unloading functions in multi-actuator circuits.
- Industrial Reliability: Hardened, precision-machined spool and seat components ensure long service life and stable performance under continuous industrial duty cycles.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth ZDB6 series specifications, ensuring drop-in interchangeability.
Typical Industrial Applications
This pressure relief valve is widely deployed in hydraulic power units and machine circuits including plastic injection molding machines, metallurgical and forming presses, CNC machine tool clamping systems, and general industrial hydraulic power packs where reliable overpressure protection and precise system pressure regulation are essential.
PRODUCT IMAGES
REXROTH ZDB6VP2-4X/315V / R900409898 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 ZDB6VP2-4X/315V / R900409898 Pilot Operated Pressure Relief Valve. This German-made hydraulic component features a poppet design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
