Bosch Rexroth | 4WRBKE16W4-180SJ-1X6ZG24K31A1D3M
4WRBKE16W4-180SJ-1X/6ZG24K31/A1D3M
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The 4WRBKE16W4-180SJ-1X/6ZG24K31/A1D3M proportional valve belongs to the 4WRBKE OBE Valves series and is produced by Bosch Rexroth. It regulates flow and pressure in electro-hydraulic automation systems where compact control of large volumes is required. The valve carries an IP65 protection rating, so its housing resists dust and water jets during machine operation. A nominal size of 16 establishes the port section area that determines base flow capacity. The unit tolerates working pressures up to 350 bar on the P, A, and B ports, while the external T port is limited to 250 bar and the pilot X port to 280 bar, permitting safe integration into high-pressure circuits. A maximum flow of 450 l/min supports supply of large actuators, and a nominal flow of 180 l/min at a 5 bar pressure drop per edge identifies the controllable range used for proportional metering. Dynamic behavior is aided by a 55 ms response time from 0 to 100 percent command at 100 bar, allowing quick load changes in closed-loop systems.
The integrated electronics operate from a 24 V DC supply and accept a ±10 V setpoint signal, giving direct compatibility with common motion controllers. An input impedance of 100 kΩ reduces current draw on the command source, and spool positioning accuracy of 0.5 percent enables fine repeatability in force or speed control loops. Hysteresis is specified at no more than 0.3 percent, so commanded positions repeat with minimal deviation. The main stage spool moves through a ±7 mm stroke, providing the mechanical range necessary to modulate flow across the metering edges. Installation follows the ISO 4401-07-06-0-94 mounting pattern, which aligns with standard manifold interfaces, and overall mass is 11 kg, allowing single-person handling during maintenance.
Technical Specifications
Degree Of Protection
IP65
Hysteresis
0.3% max
Input Impedance
100 kΩ
Max Pressure In T (y Ext)
250 bar
Max Pressure In X (ext)
280 bar
Max Working Pressure (p, A, B)
350 bar
Maximum Flow (qmax)
450 l/min
Mounting Pattern
ISO 4401-07-06-0-94
Nominal Flow (Δp 5 Bar/edge)
180 l/min
Nominal Size (ng)
16
Positioning Accuracy
0.5%
Response Time 0–100% (x=100 Bar)
55 ms
Setpoint Input
±10 V
Spool Stroke (main Stage)
±7 mm
Supply Voltage
24 V DC
Weight
11 kg
1620 Old Apex Road
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