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The 4WRL16E1Z180S-3X/G24Z4/M is a proportional valve built by Bosch Rexroth for the 4WRL Solenoid Valves series. It meters hydraulic flow and pressure in automated motion circuits where electronic control of actuator speed and force is required. The valve operates on a 24 VDC supply, and its coil draws up to 2.7 A while never exceeding 40 VA, so the drive electronics can be sized accurately. A response time of 40 ms from 0 to 100 percent stroke supports rapid loop corrections, and spool hysteresis remains at or below 0.1 percent to keep position error low during steady-state operation. Hydraulic capacity reaches 450 l/min, making the unit suitable for mid-frame machinery, and the NG 16 nominal size matches this flow range. Installation is simplified by the ISO 4401-07-06-0-94 subplate pattern, allowing direct mounting to standard manifolds without adapters.
Hydraulic limits place the pressure at ports P, A, and B up to 350 bar, while return and pilot ports T, X, and Y tolerate a maximum of 250 bar, preventing housing distortion under peak load. The pilot stage functions between 10 and 250 bar, ensuring stable spool positioning across varying supply conditions. Environmental sealing is rated at IP65, so the enclosure resists dust ingress and low-pressure jets during wash-down. NBR seals are fitted to handle conventional mineral oils and maintain elasticity over the stated pressure window. Internal leakage from the main stage is 600 cm³/min at 100 bar; this figure assists designers in sizing auxiliary cooling and fluid conditioning equipment. Electrical connection is made through a DIN 43650/ISO 4400 plug, which supports quick replacement during maintenance. Together, these characteristics define a proportional valve that integrates into closed-loop servo systems while safeguarding performance under demanding industrial duty.
Degree Of Protection
IP65
Hysteresis
<= 0.1%
Main Stage Leakage (100 Bar)
600 cm3/min
Max Power Consumption
40 VA
Max Pressure (p, A, B)
350 bar
Max Pressure (t, X, Y)
250 bar
Max Solenoid Current
2.7 A
Maximum Flow
450 l/min
Maximum Pilot Pressure
250 bar
Minimum Pilot Pressure
10 bar
Mounting Interface
ISO 4401-07-06-0-94
Nominal Size
NG 16
Response Time 0-100% (x=100 Bar)
40 ms
Seal Material
NBR
Solenoid Connector
DIN 43650/ISO 4400
Supply Voltage
24 VDC
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