Overview
The Rexroth R900423255 (2 FRM 10-31/25 L) is a mechanically actuated 2-way hydraulic flow control valve designed for reliable flow regulation in industrial hydraulic systems. This model offers direct actuation with no pressure compensator, featuring a lockable rotary knob with an adjustable scale for precise flow setting and stroke limitation. The valve is sized for Size 10 operation and belongs to the Series 3X component family.
Key Features
- Mechanical actuation with lockable rotary knob and calibrated scale for accurate adjustments
- Direct flow control with stroke limitation capability for application-specific requirements
- Integrated check valve for free return flow from B to A, maintaining regulated flow from A to B
- Temperature-independent operation via orifice bush design at the throttling point
- Subplate mounting with ISO standard connection diagrams
- Compatible with multiple hydraulic fluid types: HL, HLP, HLPD, HVLP, HVLPD, and HFC
- NBR seals for reliable performance across operating conditions
- Optional rectifier sandwich plate type ZS available for oscillating flow applications
Technical Specifications
- Valve Type: 2-Way Flow Control Valve, Direct Acting
- Component Size: 10
- Series: 3X
- Maximum Operating Pressure: 315 bar
- Maximum Flow: 160 l/min
- Mounting: Subplate mounting (ISO 4401)
- Seal Material: NBR
- Actuation: Mechanical (Rotary Knob)
- Flow Path: Two-way with integrated check valve
Typical Applications
- Industrial machinery and equipment requiring precise flow control
- Hydraulic systems with constant or variable load requirements
- Applications needing adjustable flow limitation and backpressure control
- Oscillating flow systems (with optional ZS rectifier sandwich plate)
- Manufacturing systems where mechanical actuation is preferred over electro-hydraulic control
Compatibility & Replacements
Compatible With
- ISO 4401 subplate mounting manifold systems
- DIN 24340 form A hydraulic porting patterns
- Standard hydraulic fluid grades: HL, HLP, HLPD, HVLP, HVLPD, HFC
- Bosch Rexroth hydraulic system networks and component chains
Replaces / Drop-In Replacement For
- Directly interchangeable with other Rexroth 2 FRM 10-31/25 L valves (R900423255)
- Verify compatibility with your system integrator before ordering for cross-manufacturer replacements
Works With
- Rexroth subplate valve manifolds and sandwich plate assemblies
- Optional ZS rectifier sandwich plate for advanced flow control
- Standard ISO 4401 and CETOP-RP 121H connection standards
- Bosch Rexroth hydraulic component ecosystems and integrated systems
