Product Overview
The Rexroth LC 32 DB20D7X/ (Material No. R900912556) is a two-stage logic cartridge valve from the proven Rexroth LC series, configured as a pilot-operated directional control element with a DB-type pilot cover. The main stage consists of a precision-machined cartridge insert (size 32) that seats into a standardized receiving cavity, while the pilot stage is integrated into the control cover and actuated via a directional spool pilot valve. By shifting the pilot spool, pilot pressure is directed to the main poppet, enabling controlled opening and closing of the main flow path between ports A and B. This design allows high flow rates to be switched with minimal pilot effort, making the LC 32 DB20D7X/ an ideal building block for compact, high-performance directional control circuits in industrial hydraulic manifolds and block systems.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Directional Control Valve (Logic Cartridge Valve with Pilot Cover) |
| Model Designation | LC 32 DB20D7X/ / R900912556 |
| Nominal Size | NG32 (cartridge size 32) |
| Operating Pressure | Standard Industrial Grade (up to 420 bar rated, pilot stage dependent) |
| Pilot Actuation | Directional spool pilot valve integrated in DB-type control cover |
| Mounting & Connection | Standard ISO cartridge cavity (NG32), manifold / block mounting |
| Sealing | NBR / FKM options per Rexroth standard |
Engineering Features & Advantages
- Precision Pilot Control: The DB20D7X pilot cover uses a directional spool valve to meter pilot flow to the main poppet, delivering fast, repeatable switching response and precise directional control of the main stage.
- High Flow in Compact Envelope: The NG32 cartridge design passes large volumes with minimal pressure drop, allowing system designers to replace bulky conventional directional valves with space-saving manifold installations.
- Leak-Free Seated Design: Poppet-type main stage provides tight shut-off between ports, reducing internal leakage and improving energy efficiency in holding and clamping circuits.
- Industrial Reliability: Hardened, precision-ground spool and seat geometry built for continuous operation under severe industrial conditions and high cyclic duty.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Rexroth OEM standards, including cavity, port pattern, and pilot interface.
Typical Industrial Applications
The Rexroth LC 32 DB20D7X/ logic cartridge valve is widely deployed in plastic injection molding machines, metallurgical presses and rolling mills, construction and marine hydraulic systems, and CNC machine tool manifolds. Its combination of high flow capacity, precise pilot actuation, and manifold-friendly cartridge mounting makes it a preferred choice for directional control, unloading, and load-holding functions in demanding industrial power units.
PRODUCT IMAGES
Rexroth LC 32 DB20D7X/ / R900912556 Logic Cartridge Valve
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Shop the genuine REXROTH LC 32 DB20D7X/ / R900912556 Proportional Directional Valve. This Germany-made 24V DC hydraulic component features a 4-way proportional design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.