Bosch Rexroth | 3WRCBH32V380M-1XM-127
3WRCBH32V380M-1X/M-127
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The 3WRCBH32V380M-1X/M-127 valve is a cartridge unit produced by Bosch Rexroth within the 3WRCBH Cartridge Valves series and is fitted into hydraulic manifolds to direct flow in automated circuits. Its nominal size of NG32 supports high-volume channels, and a rated flow of 380 l/min defines continuous delivery under load. The housing tolerates up to 315 bar system pressure, and the spool is ground to zero overlap so flow starts or stops without dead band. A 1:1 area ratio keeps hydraulic forces balanced, which assists the pilot stage in holding position. Switching completes in 28 ms for rapid response, while hysteresis stays below 0.1 % to maintain precise repeatability across duty cycles.
The valve can pass a maximum flow of 570 l/min during short-duration peaks, and the pilot network draws 16 l/min to shift the control land. An internal transducer operates from a ±15 V supply that can provide +35 mA or −25 mA for position feedback electronics. Resistance to 25 g vibration enables use on mobile equipment or presses. NBR seals retain mineral oil at fluid temperatures up to +80 °C, and the assembly remains functional when ambient air reaches +50 °C. The body weighs 5.6 kg, adding stability in the cavity, and system oil should meet ISO 4406 (c) class 18/16/13 cleanliness to preserve the fine spool fit.
Technical Specifications
Actuating Time A–x
28 ms
Area Ratio
1:1
Cleanliness Class
ISO 4406 (c) 18/16/13
Hysteresis
<0.1%
Mass
5.6 kg
Max Ambient Temp
+50 °C
Max Flow
570 l/min
Max Fluid Temp
+80 °C
Max Operating Pressure
315 bar
Nominal Size
NG32
Pilot Flow
16 l/min
Rated Flow
380 l/min
Seal Material
NBR
Spool Overlap
Zero
Transducer Supply
±15 V (+35 mA/−25 mA)
Vibration Resistance
25 g
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