|
Product Details:
|
| Electrical Connector: | 6-pin + PE Plug (DIN EN 175201-804, K31) | Ports (P, A, B, T): | 4x Threaded (NG10 Standard) |
|---|---|---|---|
| Media Temperature: | -20°C To +80°C (optimal 40–50°C) | Viscosity Range: | 20 To 380 Mm²/s |
| Weight: | Approx. 6.26 Kg |
|
Parameter |
Specification |
|---|---|
|
Model / Order No. |
4WREE10W75-2X/G24K31/F1V (R900948360) |
|
Type |
Direct-operated proportional directional valve with LVDT spool position feedback |
|
Function |
4/3-way (3 positions, 4 ports), spring-centered |
|
Nominal Size |
NG10 (CETOP 5) |
|
Max. Operating Pressure |
P, A, B: 315 bar; T port: 210 bar |
|
Rated Flow |
75 L/min (at Δp = 10 bar) |
|
Max. Flow |
Approx. 180 L/min |
|
Spool Type |
W (Overlap spool) |
|
Spool Characteristic |
Progressive (non-linear) |
|
Electronics |
Integrated On-Board Electronics (OBE) |
|
Supply Voltage |
24V DC (21...35 VDC) |
|
Control Signal |
4–20 mA (Analog current input, /F1 suffix) |
|
Feedback |
Yes (LVDT spool position sensor) |
|
Electrical Connector |
6-pin + PE plug (DIN EN 175201-804, K31) |
|
Mounting Interface |
ISO 4401-05-04-0-05 (CETOP 5 subplate) |
|
Ports (P, A, B, T) |
4x threaded (NG10 standard) |
|
Manual Override |
No |
|
Seal Material |
FKM (Viton) |
|
Suitable Media |
Mineral oils (HL, HLP), HETG, HEES, HEPG, HFDU, HFDR |
|
Media Temperature |
-20°C to +80°C (optimal 40–50°C) |
|
Viscosity Range |
20 to 380 mm²/s |
|
Weight |
Approx. 6.26 kg |
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Q: What is the difference between the "W" and "E" spools?
A: The W spool (overlap) has a small dead zone at the center, providing smooth starts/stops and preventing actuator creep. The E spool (zero overlap) offers a more direct, linear response and is better for precise flow control.
Q: Why choose the /F1 version over /A1?
A: The /F1 suffix indicates a 4–20 mA current input, which is more resistant to electrical noise over long cable runs compared to the /A1 version (±10V voltage input). This makes it suitable for industrial environments with significant EMI.
Q: Does this valve require an external amplifier?
A: No. The "E" in 4WREE and the /G24K31 suffix confirm Integrated On-Board Electronics (OBE). It operates directly with a 24V DC power supply and the 4–20 mA command signal.
Q: Is this valve suitable for closed-loop speed control?
A: Yes. As part of the 4WREE series, it features LVDT feedback that provides internal closed-loop control of the spool position, ensuring high repeatability and accuracy in speed control applications.
Q: What is the critical installation note?
A: Maintain the T-port backpressure below 210 bar. Due to the precision spool and LVDT, ensure high oil cleanliness (recommended NAS 1638 Class 8 or better) to prevent damage to the tight tolerances.
Contact Person: Mr. liyun
Tel: +8615280488899