Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
| Payment Terms | Western Union,T/T,D/P,D/A,L/C |
| Supply Ability | 100 |
| Delivery Time | 2 weeks |
| Packaging Details | wooden box |
| Max. Operating Pressure | P, A, B: 350 bar |
| Rated Flow | 350 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 (18...35 VDC) |
| Brand Name | Rexroth |
| Model Number | R900731881 4WRKE25W8-350L-3X/6EG24ETK31/A1D3M |
| Certification | ISO |
| Place of Origin | German |
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Product Specification
| Payment Terms | Western Union,T/T,D/P,D/A,L/C | Supply Ability | 100 |
| Delivery Time | 2 weeks | Packaging Details | wooden box |
| Max. Operating Pressure | P, A, B: 350 bar | Rated Flow | 350 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 (18...35 VDC) | Brand Name | Rexroth |
| Model Number | R900731881 4WRKE25W8-350L-3X/6EG24ETK31/A1D3M | Certification | ISO |
| Place of Origin | German | ||
| High Light | Rexroth proportional control valve ，Rexroth electromagnetic directional valve ，Rexroth hydraulic valve with warranty | ||
|
Parameter |
Specification |
|---|---|
|
Order Number |
R900731881 |
|
Model |
4WRKE25W8-350L-3X/6EG24ETK31/A1D3M |
|
Type |
Pilot-operated, 2-stage proportional directional valve |
|
Function |
4/3-way (3 positions, 4 ports), spring-centered |
|
Spool Type |
W8 (Overlap spool, with electrical position feedback) |
|
Nominal Size |
NG25 (CETOP 8) |
|
Max. Operating Pressure |
P, A, B: 350 bar |
|
Rated Flow |
350 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 (18...35 VDC) |
|
Control Signal |
±10 V DC (Analog voltage input, /A1 suffix) |
|
Feedback |
Electrical spool position feedback (LVDT, /ET) |
|
Pilot Oil Supply |
External (X) |
|
Pilot Oil Return |
External (Y) |
|
Manual Override |
No |
|
Pressure Reducing Valve |
Yes (D3, ZDR 6 DP0-4X/40YM) |
|
Seal Material |
NBR (M) |
|
Electrical Connector |
7-pin plug (DIN EN 175201-804, K31) |
|
Mounting Interface |
ISO 4401-08-07-0-94 (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. 17.9 kg |
| 4WRZE25E1-325-72/6EG24N9EK31/A1V |
| 4WRZE25E1-325-72/6EG24N9EK31/F1D3M |
| 4WRZE25E1-325-72/6EG24N9ETK31/A1D3M |
| 4WRZE25E1-325-72/6EG24N9ETK31/A1M |
| 4WRZE25E1-325-72/6EG24N9K31/A1D3M |
| 4WRZE25E1-325-72/6EG24N9K31/F1V |
| 4WRZE25E220-72/6EG24ETK31/A1D3M |
| 4WRZE25E220-72/6EG24K31/A1M |
| 4WRZE25E220-72/6EG24N9EK31/A1D3V |
| 4WRZE25E220-72/6EG24N9EK31/A1M |
| 4WRZE25E220-72/6EG24N9ETK31/F1D3M |
| 4WRZE25E220-72/6EG24N9K31/A1D3M |
| 4WRZE25E325-72/6EG24ETK31/A1D3M |
| 4WRZE25E325-72/6EG24K31/A1D3M |
| 4WRZE25E325-72/6EG24N9EK31/A1D3V |
| 4WRZE25E325-72/6EG24N9ETK31/A1D3V |
| 4WRZE25E325-72/6EG24N9ETK31/A1V |
| 4WRZE25E325-72/6EG24N9K31/A1D3V |
| 4WRZE25E3-325-72/6EG24EK31/A1D3M |
| 4WRZE25EA325-72/6EG24ETK31/A1M |
| 4WRZE25EB220-72/6EG24K31/A1M |
| 4WRZE25W6-220-72/6EG24EK31/A1D3M |
| 4WRZE25W6-220-72/6EG24EK31/F1D3M |
| 4WRZE25W6-220-72/6EG24ETK31/A1D3M |
| 4WRZE25W6-220-72/6EG24K31/A1D3M |
| 4WRZE25W6-220-72/6EG24K31/F1D3M |
| 4WRZE25W6-220-72/6EG24K31/F1V |
| 4WRZE25W6-220-72/6EG24N9EK31/A1D3M |
| 4WRZE25W6-220-72/6EG24N9EK31/A1D3V |
| 4WRZE25W6-220-72/6EG24N9EK31/A1M |
| 4WRZE25W6-220-72/6EG24N9EK31/F1D3M |
| 4WRZE25W6-220-72/6EG24N9ETK31/A1D3M |
| 4WRZE25W6-220-72/6EG24N9ETK31/F1D3M |
| 4WRZE25W6-220-72/6EG24N9K31/A1M |
| 4WRZE25W6-220-72/6EG24N9K31/F1D3M |
| 4WRZE25W6-220-72/6EG24N9K31/F1D3V |
| 4WRZE25W6-220-72/6EG24N9K31/F1V |
| 4WRZE25W6-325-72/6EG24EK31/F1D3M |
| 4WRZE25W6-325-72/6EG24ETK31/A1D3M |
| 4WRZE25W6-325-72/6EG24ETK31/F1D3V |
| 4WRZE25W6-325-72/6EG24ETK31/F1M |
| 4WRZE25W6-325-72/6EG24K31/A1D3M |
| 4WRZE25W6-325-72/6EG24K31/A1M |
| 4WRZE25W6-325-72/6EG24K31/F1D3M |
| 4WRZE25W6-325-72/6EG24N9EK31/A1D3M |
| 4WRZE25W6-325-72/6EG24N9EK31/A1M |
| 4WRZE25W6-325-72/6EG24N9EK31/A1V |
| 4WRZE25W6-325-72/6EG24N9EK31/F1D3M |
| 4WRZE25W6-325-72/6EG24N9EK31/F1M |
| 4WRZE25W6-325-72/6EG24N9ETK31/A1D3M |
| 4WRZE25W6-325-72/6EG24N9ETK31/A1M |
| 4WRZE25W6-325-72/6EG24N9ETK31/F1D3M |
| 4WRZE25W6-325-72/6EG24N9K31/A1M |
| 4WRZE25W6-325-72/6EG24N9K31/A1V |
| 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 |
FAQ:
Spool Type (W8)
The W8 spool is an overlap spool (positive overlap). This design minimizes internal leakage when the valve is in the center position but requires a higher deadband control signal to initiate movement. It is suitable for applications where holding position and minimal leakage are critical.
Control Signal (/A1)
The /A1 suffix (±10 V voltage input) is ideal for high-precision control systems (e.g., servo controllers, motion controllers) where fine resolution and fast signal response are required.
Pilot Oil Configuration (/6EG24ETK31)
This valve 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 25–315 bar) and ensure the Y port drains directly to the tank with minimal backpressure (max 10 bar).
Integrated Pressure Reducing Valve (/D3)
The /D3 option includes an integrated ZDR 6 pressure reducing valve. It ensures the pilot stage receives a stable, reduced pressure (typically around 40 bar), protecting the sensitive pilot valve from high and fluctuating main system pressures.
Critical Installation Notes
Drain Line: The external pilot drain (Y port) must be connected directly to the tank with a dedicated line. Backpressure on Y must be < 10 bar.
Cleanliness: Maintain high oil cleanliness (recommended NAS 1638 Class 8 or ISO 4406 20/18/15 for the main stage).
Pilot Supply: Provide clean, regulated pilot pressure to the X port.
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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