Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
| Certifiion | ISO |
| Rated Flow | 325 L/min (at Δp = 10 bar per control land) |
| Delivery Time | 2 weeks |
| Payment Terms | Western Union,T/T,D/P,L/C,D/A |
| Packaging Details | wooden box |
| Supply Ability | 100 |
| Mounting Interface | ISO 4401-08-08-0-05 (CETOP 8 subplate) |
| Electrical Connector | 7-pin (6 + PE) plug (DIN EN 175201-804, K31) |
| Control Signal | ±10 V DC (Analog voltage input, /A1 suffix) |
| Max. Flow | Approx. 870 L/min |
| Brand Name | Rexroth |
| Place of Origin | German |
| Model Number | R900767522 4WRZE25W8-325-7X/6EG24N9K31/A1D3M |
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Product Specification
| Certifiion | ISO | Rated Flow | 325 L/min (at Δp = 10 bar per control land) |
| Delivery Time | 2 weeks | Payment Terms | Western Union,T/T,D/P,L/C,D/A |
| Packaging Details | wooden box | Supply Ability | 100 |
| Mounting Interface | ISO 4401-08-08-0-05 (CETOP 8 subplate) | Electrical Connector | 7-pin (6 + PE) plug (DIN EN 175201-804, K31) |
| Control Signal | ±10 V DC (Analog voltage input, /A1 suffix) | Max. Flow | Approx. 870 L/min |
| Brand Name | Rexroth | Place of Origin | German |
| Model Number | R900767522 4WRZE25W8-325-7X/6EG24N9K31/A1D3M | ||
| High Light | Rexroth proportional servo valve ，German hydraulic valve 4WRZE25W8 ，Rexroth valve with warranty | ||
|
Parameter |
Specifiion |
|---|---|
|
Order Number |
R900767522 |
|
Model |
4WRZE25W8-325-7X/6EG24N9K31/A1D3M |
|
Type |
Pilot-operated, 2-stage proportional directional valve |
|
Function |
4/3-way (3 positions, 4 ports), spring-centered |
|
Spool Type |
W8 (Overlap spool, O-type mid-position, 2:1 area ratio) |
|
Nominal Size |
NG25 (CETOP 8) |
|
Max. Operating Pressure |
P, A, B: 350 bar; T port: 210 bar |
|
Rated Flow |
325 L/min (at Δp = 10 bar per control land) |
|
Max. Flow |
Approx. 870 L/min |
|
Electronics |
Integrated On-Board Electronics (OBE) |
|
Supply Voltage |
24V DC (19.4...35 VDC) |
|
Control Signal |
±10 V DC (Analog voltage input, /A1 suffix) |
|
Feedback |
No electrical position feedback (open-loop) |
|
Pilot Oil Supply |
External (X) |
|
Pilot Oil Return |
External (Y) |
|
Manual Override |
Yes (N9, concealed) |
|
Pressure Reducing Valve |
Yes (D3, ZDR 6 DP0-4X/...) |
|
Seal Material |
NBR (M) |
|
Electrical Connector |
7-pin (6 + PE) plug (DIN EN 175201-804, K31) |
|
Mounting Interface |
ISO 4401-08-08-0-05 (CETOP 8 subplate) |
|
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. 18.9 kg (with D3 option) |
| 4WRZE25W6-325-72/6EG24N9K31/F1D3M |
| 4WRZE25W6-325-72/6EG24N9K31/F1D3V |
| 4WRZE25W6-325-72/6EG24N9K31/F1M |
| 4WRZE25W6-325-72/6EG24N9K31/F1V |
| 4WRZE25W6-325-72/6EG24N9TK31/A1D3M |
| 4WRZE25W6-325-72/6EG24N9TK31/F1D3V |
| 4WRZE25W8-220-72/6EG24EK31/A1D3M |
| 4WRZE25W8-220-72/6EG24EK31/F1D3M |
| 4WRZE25W8-220-72/6EG24ETK31/A1D3M |
| 4WRZE25W8-220-72/6EG24K31/A1D3M |
| 4WRZE25W8-220-72/6EG24K31/F1D3M |
| 4WRZE25W8-220-72/6EG24N9EK31/A1D3M |
| 4WRZE25W8-220-72/6EG24N9EK31/F1D3M |
| 4WRZE25W8-220-72/6EG24N9ETK31/F1D3M |
| 4WRZE25W8-220-72/6EG24N9ETK31/F1D3V |
| 4WRZE25W8-220-72/6EG24N9K31/A1D3V |
| 4WRZE25W8-220-72/6EG24N9K31/A1M |
| 4WRZE25W8-220-72/6EG24N9K31/F1D3M |
| 4WRZE25W8-325-72/6EG24EK31/A1D3M |
| 4WRZE25W8-325-72/6EG24EK31/F1D3M |
| 4WRZE25W8-325-72/6EG24ETK31/A1D3M |
| 4WRZE25W8-325-72/6EG24ETK31/F1M |
| 4WRZE25W8-325-72/6EG24K31/A1D3M |
| 4WRZE25W8-325-72/6EG24K31/A1M |
| 4WRZE25W8-325-72/6EG24N9EK31/A1D3M |
| 4WRZE25W8-325-72/6EG24N9EK31/A1D3V |
| 4WRZE25W8-325-72/6EG24N9EK31/A1V |
| 4WRZE25W8-325-72/6EG24N9EK31/F1D3M |
| 4WRZE25W8-325-72/6EG24N9EK31/F1D3V |
| 4WRZE25W8-325-72/6EG24N9ETK31/F1D3M |
| 4WRZE25W8-325-72/6EG24N9ETK31/F1D3V |
| 4WRZE25W8-325-72/6EG24N9K31/A1D3M |
| 4WRZE25W8-325-72/6EG24N9K31/A1M |
| 4WRZE25W8-325-72/6EG24N9K31/F1D3M |
| 4WRZE25W9-220-72/6EG24N9EK31/A1D3M |
| 4WRZE25W9-220-72/6EG24N9EK31/A1D3V |
| 4WRZE25W9-220-72/6EG24N9ETK31/A1D3V |
| 4WRZE25W9-220-72/6EG24N9K31/A1D3M |
| 4WRZE25W9-220-72/6EG24N9K31/F1D3M |
| 4WRZE25W9-325-72/6EG24N9EK31/A1D3M |
| 4WRZE25W9-325-72/6EG24N9K31/A1D3M |
| 4WRZE32E1-360-72/6EG24ETK31/A1D3M |
| 4WRZE32E1-520-72/6EG24ETK31/A1D3M |
| 4WRZE32E1-520-72/6EG24N9K31/A1D3M |
| 4WRZE32E360-72/6EG24ETK31/A1D3M |
| 4WRZE32E360-72/6EG24K31/A1M |
| 4WRZE32E520-72/6EG24EK31/A1D3M |
| 4WRZE32E520-72/6EG24EK31/F1D3M |
| 4WRZE32E520-72/6EG24ETK31/A1D3M |
| 4WRZE32E520-72/6EG24K31/A1D3M |
| 4WRZE32E520-72/6EG24N9ETK31/A1M |
| 4WRZE32E520-72/6EG24N9K31/A1D3V |
| 4WRZE32E520-72/6EG24N9TK31/A1D3M |
| 4WRZE32EA520-72/6EG24ETK31/A1M |
| 4WRZE32EB520-72/6EG24N9K31/A1D3M |
Q: What is the main difference between this valve and the previous R900707649?
A: This valve (R900767522) features an external pilot oil supply (X) and an integrated pressure reducing valve (/D3). R900707649 used internal pilot supply and had no pressure reducing valve. The /D3 valve ensures stable pilot pressure independent of main system fluctuations, which is critical for high-performance appliions.
Q: How does the pilot oil configuration work?
A: This valve (/6EG24N9K31) uses external pilot oil supply (X port) and external pilot oil return (Y port). You must provide clean, filtered pilot oil to the X port (typically 20–100 bar) and ensure the Y port drains directly to the tank with minimal backpressure (max 30 bar).
Q: Why choose the /A1 version?
A: The /A1 suffix (±10 V DC voltage input) is standard for many PLC analog output cards and motion controllers. It is simple to interface but can be susceptible to noise over long cable runs. For noisy environments, the /F1 version (4–20 mA) is recommended.
Q: Why choose the W8 spool?
A: The W8 spool provides a control area ratio of 2:1 (A:B) and is an overlap spool (O-type mid-position). It offers good metering characteristics and is suitable for appliions requiring smooth control of asymmetric cylinders.
Q: What is the critical installation note?
A: You must connect the external pilot drain (Y port) directly to the tank with a dedied line. Backpressure on the Y port must be below 30 bar to ensure proper pilot valve function. Provide clean, regulated pilot pressure to the X port (20–100 bar). Maintain high oil cleanliness (recommended NAS 1638 Class 8 or better for the main stage).
Company Details
Business Type:
Manufacturer,Exporter
Total Annual:
1 million-10 millon
Employee Number:
>50
Ecer Certification：
Verified Supplier
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
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