Rexroth R900721116 4WRZE16W8-150-74/6EG24N9ETK31F1D3M
Type:Rexroth R900721116 4WRZE16W8-150-74/6EG24N9ETK31F1D3M
Rexroth R900721116 4WRZE16W8-150-74/6EG24N9ETK31F1D3M
The Rexroth R900721116, also known by its type code 4WRZE16W8-150-7X/6EG24N9ETK31/F1D3M (where ‘7X’ denotes the component series, specifically ’74’ for this model), is a high-performance direct operated proportional directional valve. It comes equipped with integrated electronics (OBE) and electrical position feedback (LVDT) for precise and responsive control over the direction and magnitude of hydraulic fluid flow. This NG16 valve is designed for subplate mounting, conforming to the ISO 4401-07-07-0-05 porting pattern, and offers a nominal flow rate of 150 L/min at a 10 bar pressure differential per control land. It operates on a 24V DC power supply and is controlled via a 0 to +10V analog command signal. A significant safety feature is its ‘F1’ fail-safe function, which ensures the valve spool moves to a defined position connecting port P to T (depressurizing port P) in the event of power loss to the electronics, cable break of the actual value signal, or if the enable signal is not present. This valve is ideal for demanding hydraulic systems requiring accurate flow modulation and inherent safety features.
Technical Specifications:
- Type: Proportional Directional Valve, Direct Operated, with Integrated Electronics (OBE) and Position Feedback
- Model Series: 4WRZE
- Size: NG16 (Nominal Size 16)
- Spool Symbol: W8
- Nominal Flow Rate: 150 L/min (at 1 MPa / 10 bar pressure drop per control land)
- Maximum Operating Pressure (Ports P, A, B): 315 bar
- Maximum Operating Pressure (Port T): 210 bar
- Control Voltage: 24V DC
- Command Signal Input: 0 to +10V (Differential amplifier input A1)
- Electrical Connection: Plug-in connector to DIN EN 175201-804, 4-pole + PE (mating connector to be ordered separately)
- Position Feedback Type: Inductive (LVDT)
- Fail-Safe Function (F1): Spool moves to connect port P to T (depressurizing P) on electronics power-off, actual value signal cable break, or if enable signal is not present
- Mounting Pattern: ISO 4401-07-07-0-05 (NG16)
- Sealing Material: NBR (Nitrile Butadiene Rubber)
- Compatible Hydraulic Fluids: Mineral oils (HL, HLP) according to DIN 51524; rapidly biodegradable hydraulic fluids (HETG, HEES, HEPG) according to VDMA 24568 (check compatibility for specific fluid)
- Component Series: 7X (specifically 74 as per full part number R900721116)
- Integrated Electronics Type: Analog, command value 0 to +10 V (6E)
- Enable Input: “ON” = +24 V DC (K31 option)
| Brand | Rexroth |
|---|---|
| Model | R900721116 4WRZE16W8-150-74/6EG24N9ETK31F1D3M |
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