Product Overview

The Rexroth 3DREP 6 C-21/25EG24N9K4/M (Material Number R900958817) is a direct-operated, three-way proportional pressure reducing valve designed for precise, infinitely variable pressure control in industrial hydraulic systems. As a member of the Rexroth 3DREP series, this valve reduces a primary system pressure to a lower, electrically proportional secondary pressure at port A, while simultaneously providing pressure relief from port A to tank port T. The valve features a proportional solenoid with central electrical connection and integrated control electronics, enabling stepless adjustment of the regulated output pressure in direct proportion to the electrical command signal. This design makes it ideal for applications requiring accurate, dynamic pressure regulation with minimal hysteresis and fast response characteristics.

Technical Specifications

ParameterSpecification / Feature
Component TypeProportional Pressure Reducing Valve (Pressure Control Valve)
Model Designation3DREP 6 C-21/25EG24N9K4/M
Material NumberR900958817
Size / Nominal DiameterNG6 (CETOP 3 / ISO 4401-03)
Operating PressureUp to 315 bar (system pressure at port P)
Regulated Output PressureUp to 25 bar (pressure range code 25)
Nominal Flow RateUp to 30 L/min (dependent on pressure differential)
Actuation TypeProportional solenoid, single solenoid with spring return
Electrical Supply24 V DC (EG24 designation), nominal solenoid voltage
Electrical ConnectionCentral connector with integrated control electronics (K4 designation)
Seal MaterialNBR (N9 designation), suitable for mineral oil-based hydraulic fluids
Mounting & ConnectionSubplate mounting per ISO 4401-03 / CETOP 3, 4-way interface

Engineering Features & Advantages

  • Precision Performance: The proportional pressure reducing valve (pressure control valve) delivers precise, repeatable performance with low hysteresis and stable control across the full working 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 standards, allowing straightforward retrofit into existing hydraulic systems without rework.
  • Rated Capability: Rated for pressure ratings up to 315 bar and flow rates up to 30 L/min, supporting stable operation across the full working range.

Typical Industrial Applications

This design makes it ideal for applications requiring accurate, dynamic pressure regulation with minimal hysteresis and fast response characteristics.

PRODUCT IMAGES

REXROTH 3DREP 6 C-21/25EG24N9K4/M / R900958817

REXROTH 3DREP 6 C-21/25EG24N9K4/M / R900958817 Proportional Pressure Reducing 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 3DREP 6 C-21/25EG24N9K4/M / R900958817 Proportional Directional Control Valve. This Germany-made 24V DC hydraulic component features a direct-operated spool design, delivering precise, leak-free fluid control for heavy-duty industrial systems.

Tested Genuine Surplus / OEM Hydraulic Component
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Tested Genuine Surplus / OEM Hydraulic Component
WhatsApp RFQ Fast Quote