Bosch Rexroth | 4WRL16WZ180S-3XG24Z4WX02M-744
4WRL16WZ180S-3X/G24Z4/WX02M-744
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The 4WRL16WZ180S-3X/G24Z4/WX02M-744 valve is part of the 4WRL Solenoid Valves series from Bosch Rexroth and is intended to regulate flow and pressure in hydraulic automation systems. Its nominal size 16 body follows the ISO 4401-07-06-0-94 mounting pattern so it installs on standard subplates. A 24 V DC supply powers the solenoid through a DIN 43650/ISO 4400 two-pole plus PE connector, easing electrical hookup. The main stage passes up to 450 l/min, while ports p, a, and b tolerate 350 bar; ports t, x, and y are limited to 250 bar. Pilot operation needs at least 10 bar and permits up to 250 bar, and a 12 l/min pilot flow moves the spool. The enclosure weighs 10 kg, which influences manifold support and handling during maintenance.
The valve carries an IP65 rating, blocking dust and low-pressure water jets from the solenoid housing. System oil must reach cleanliness class 18/16/13 per ISO 4406 to protect the metering edges from wear. Hysteresis is held to 0.1 %, allowing precise proportional command tracking. Step response varies with pilot pressure: a 0–100 % stroke completes in 40 ms at 100 bar and in 90 ms at 10 bar, information that helps set controller gain and timing. These environmental, fluid, accuracy, and speed parameters define the operating envelope required for dependable proportional control within hydraulic circuits.
Technical Specifications
Degree Of Protection
IP65
Fluid Cleanliness Class
18/16/13 (ISO 4406)
Hysteresis
0.1%
Max Flow
450 l/min
Max Pilot Pressure
250 bar
Max Pressure (p,a,b)
350 bar
Max Pressure (t,x,y)
250 bar
Min Pilot Pressure
10 bar
Mounting Pattern
ISO 4401-07-06-0-94
Pilot Valve Flow
12 l/min
Response Time 0–100% (x=10 Bar)
90 ms
Response Time 0–100% (x=100 Bar)
40 ms
Size (ng)
16
Solenoid Connector
DIN 43650/ISO 4400 (2P+PE)
Supply Voltage
24 V DC
Weight
10 kg
1620 Old Apex Road
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