Product Overview
The Rexroth ZDB6VA1-42/200V (Material Number R900433646) is a direct-operated pressure relief valve from the proven ZDB6 series, designed to limit system pressure and provide reliable overload protection in industrial hydraulic circuits. As a pressure control valve, it operates on a poppet-and-spring working principle: when system pressure exceeds the set value, the poppet lifts off its seat and routes excess flow to the tank port, maintaining the desired pressure level. The “VA” designation indicates a screw-adjustable pressure setting with a hex socket and locknut, while the “200V” code specifies a pressure rating of up to 200 bar. This valve is engineered for panel or manifold mounting in compact hydraulic power units, machine tools, and general industrial systems where precise, repeatable pressure control is essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pressure Control Valve (Direct-Operated Pressure Relief Valve) |
| Model Designation | ZDB6VA1-42/200V / R900433646 |
| Operating Pressure | Up to 200 bar (pressure setting range per “200V” code) |
| Mounting & Connection | Subplate / Manifold Mounting, ISO 4401 Size 6 (NG6) Interface |
| Adjustment Type | Screw Adjustment with Hex Socket and Locknut (VA1) |
| Working Principle | Direct-Operated Poppet with Spring Loading |
| Fluid Compatibility | Mineral Oil Based Hydraulic Fluids (HL, HLP per DIN 51524) |
Engineering Features & Advantages
- Precision Pressure Control: Direct-operated poppet design delivers fast response and accurate pressure limitation, protecting downstream components from pressure spikes and overloads.
- Adjustable Setting: The VA1 screw adjustment with locknut allows precise, repeatable pressure setting in the field, with a tamper-resistant configuration for stable long-term operation.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components and proven Rexroth quality standards.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in replacement for ZDB6 series valves.
- Compact NG6 Design: Space-saving subplate mounting simplifies integration into new and existing hydraulic manifolds.
Typical Industrial Applications
This pressure relief valve is widely used in plastic injection molding machines, metallurgical presses, CNC machine tools, and general industrial hydraulic power units. It is also suitable for construction and marine hydraulic systems, test stands, and any application requiring reliable pressure limitation and overload protection in a compact NG6 footprint.
PRODUCT IMAGES
REXROTH ZDB6VA1-42/200V / R900433646 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 ZDB6VA1-42/200V / R900433646 Pilot Operated Pressure Relief Valve. This German-made hydraulic component features a pilot-operated design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.