Bosch Rexroth | 3WRCBH25V190M-1XM-127NG25Q190L
3WRCBH25V190M-1X/M-127NG25Q190L&
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The 3WRCBH25V190M-1X/M-127NG25Q190L& cartridge valve is part of the 3WRCBH Cartridge Valves series from Bosch Rexroth and directs hydraulic flow in automated power units. Its nominal size of NG 25 matches standard 25 mm cavities for straightforward manifold integration. A rated flow of 190 l/min handles high-volume circuits without excessive pressure drop, and a maximum operating pressure of 315 bar permits use in demanding industrial lines. The spool’s 1:1 area ratio balances hydraulic forces to keep actuation effort low, and a zero overlap design removes dead band for accurate proportional control. An actuating time of 33 ms supports rapid switching where short cycle times are required. Pilot flow is limited to 8 l/min so pilot stages and upstream pumps are not overloaded. Three ports provide the P, A, and T connections required for three-way directional functions.
Fluid cleanliness must reach ISO 4406 class 18/16/13 to preserve the sliding fit and maintain expected service life. An NBR seal package gives compatibility with mineral hydraulic oils and contains leakage under pressure. The valve may be mounted horizontally or with the transducer facing downward, a position that protects the electronics from trapped air. Total mass is 3.9 kg, allowing installation by a single technician. The integrated position transducer outputs a ±10 V signal so external controllers can monitor spool position in real time; it draws 35 mA from the +15 V rail and 25 mA from the −15 V rail, which defines the power budget for the control cabinet. Resistance to vibration up to 25 g enables reliable operation on mobile machinery or presses where shock loading is common.
Technical Specifications
Actuating Time (a–x)
33 ms
Area Ratio (spool)
1:1
Cleanliness Class
ISO 4406 18/16/13
Control Spool Overlap
Zero
Installation Position
Horizontal Or Transducer Down
Mass
3.9 kg
Maximum Operating Pressure
315 bar
Nominal Size
NG 25
Pilot Flow
8 l/min
Ports
3
Rated Flow
190 l/min
Seal Material
NBR
Transducer Output Signal
±10 V
Transducer Supply +15 V Current
35 mA
Transducer Supply −15 V Current
25 mA
Vibration Resistance
25 g
1620 Old Apex Road
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