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August 17,2026
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M-3SED_6_CK1X-350CG_
Name: Switching Directional Valve (Rexroth - BOSCH). - Directional Spool Valve. - Directional Spool Valve With Wet Pin Solenoids. - Type WE. - Nominal Size 6. - A : B-Spool. - Qmax = approx. 80 L/min. - Pmax = 350 bar. - Porting Pattern To DIN 24340 Form A. - I Description: Based on the official Bosch Rexroth technical documentation, a directional spool valve with the B spool symbol (Type 4WE6B) matches your specifications for a size 6, solenoid-operated valve with wet-pin solenoids.
The 'B' designation indicates the spool symbol, which defines the specific fluid flow paths when the valve is actuated. A product listing confirms a model with the "B" spool is a 3-way, 2-position (3/2) valve, featuring three ports and two switching positions.
Key performance parameters confirmed for this valve series include the maximum flow and pressure ratings you specified, compliant with the listed porting standards.
✅ Confirmed Technical Specifications
Parameter Specification Source(s)
Valve Type WE – Directional spool valve, solenoid-operated
Nominal Size 6 (NG6 / CETOP 3 / ISO 4401)
Spool Type B (3/2-way)
Maximum Flow (DC) 80 L/min
Maximum Operating Pressure 350 bar (at ports P, A, B)
Actuation Solenoid operated (wet-pin)
Porting Pattern DIN 24340 Form A, ISO 4401-03-02-0-05, NFPA D03
🔧 Understanding the Valve Design
The valve uses a control spool moved by one or two wet-pin solenoids, which are immersed in hydraulic fluid for quiet operation, good heat dissipation, and long service life.
In the de-energized state, the spool is held in its central or initial position by return springs.
When a solenoid is energized, it pushes the spool to direct flow according to the hydraulic symbol, enabling reliable switching of the oil flow direction.
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3we6b
80lmin
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