Rexroth Directional Poppet Valve M-3SED

Rexroth M-3SED Directional Poppet Valve Overview

The Rexroth M-SED series are direct operated directional seat valves with solenoid actuation, designed for reliable on-off control and flow direction switching in industrial and mobile hydraulic circuits.

Equipped with a hardened precision poppet closing element, the series delivers zero-leakage shut-off performance, making it ideal for load holding and safety-critical applications. All variants adopt wet-pin DC solenoids with a 90° rotatable detachable coil that can be replaced without opening the pressure-tight chamber, greatly simplifying on-site maintenance. The valves feature standard subplate mounting conforming to ISO 4401 and DIN 24340, supporting direct drop-in replacement without manifold modifications. Optional concealed manual override and contactless inductive position switches further expand application flexibility.

Available in nominal sizes 6 and 10 (component series 1X), the series delivers consistent switching performance even after long periods of standstill under pressurized conditions, serving as a reliable basic control element for hydraulic systems.

Rexroth M-3SED Valve Key Features

• Zero-Leakage Poppet Design – Hardened valve seat and precision poppet element provide tight, leak-free shut-off, ensuring stable load holding and preventing unintended drift in safety circuits.
• Service-Friendly Solenoid Assembly – Wet-pin DC solenoid with rotatable detachable coil; coil replacement requires no opening of the pressure chamber, reducing maintenance downtime.
• Standardized Mounting Interface – Porting pattern complies with ISO 4401 and DIN 24340 standards, enabling direct drop-in installation without manifold block modifications.
• Flexible Optional Configurations – Available with concealed manual override, inductive position switch, check valve insert and throttle orifice inserts to match custom circuit requirements.
• High-Pressure Switching Reliability – Rated for 350 bar maximum operating pressure, with stable and repeatable switching performance under long-term pressurized standby conditions.

Rexroth M-3SED Key Specifications

Rexroth M-3SED Weight by Size (approx.)

Rexroth M-3SED Series Applications

As a zero-leakage high-pressure directional control solution, the M-SED series serves as a reliable switching and safety element across industrial and mobile hydraulic systems.

• High-Pressure Safety Shut-off Circuits – Acts as a leak-free isolation valve for high-pressure hydraulic lines in metallurgical plants, chemical processing systems and test rigs, ensuring safe emergency shut-off and preventing pressure loss during long standby periods.
• Hydraulic Power Unit Pilot Control – Serves as a pilot stage for larger directional and pressure valves in standard and custom hydraulic power units, delivering fast, repeatable switching response with zero internal leakage for stable pilot pressure regulation.
• Press & Tooling Clamping Systems – Provides reliable directional control and load holding for press die clamping, workpiece fixturing and metal forming tooling circuits, where zero leakage guarantees consistent clamping force and dimensional accuracy of formed parts.
• Mobile Machinery Load Holding – Used for stabilizer leg locking, boom holding and auxiliary circuit control in construction machinery, aerial work platforms and material handling equipment, eliminating load drift and improving operational safety.
• Marine & Offshore Auxiliary Hydraulics – Adapted to deck machinery and offshore platform auxiliary systems, with optional FKM seals for compatibility with special hydraulic fluids; robust poppet design withstands vibration and harsh marine operating conditions.

Commonly Requested Material Numbers (MNR)

Below are frequently ordered M-2SED / M-3SED / M-4SED models. If your part number is not listed, please contact us freely.

M-3SED 6 Series (Size 6)

M-3SED 10 Series (Size 10)

M-2SED 6 Series (Size 6)

M-2SED 10 Series (Size 10)

M-4SED 6 Series (Size 6)

M-4SED 10 Series (Size 10)