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Product Details:
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| Command Signal: | 4–20 MA (Analog Input, Corresponds To 0–100% Valve Opening) | Seal Material: | NBR (Standard For Mineral Oils) |
|---|---|---|---|
| Hydraulic Fluid: | Mineral Oils (HL, HLP), HETG, HEES, HFDU | Operating Temperature: | -20°C To +60°C |
| Weight: | Approx. 7.4 Kg | ||
| Highlight: | Rexroth proportional flow control valve,Rexroth hydraulic valve with warranty,Germany Rexroth flow control valve |
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Parameter |
Specification |
|---|---|
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Manufacturer / Series |
Rexroth 2WFCE Series |
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Order Code |
R901430258 |
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Full Model |
2WFCE40S500L-1X/M/24G1 |
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Valve Type |
Pilot-Operated Proportional Directional Cartridge Valve (2-way, 2-position) |
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Primary Function |
High-flow proportional throttling / flow control; can be used as a directional valve. |
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Control Type |
Proportional solenoid with Integrated Electronics (OBE) and position feedback. |
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Nominal Size |
NG 40 (Cartridge size per ISO 7368) |
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Max. Operating Pressure |
420 bar (Ports A, B) |
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Rated Flow (Qn) |
500 L/min |
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Flow Characteristic |
Linear (L) |
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Pressure Compensation |
No (Requires external pressure compensator for load-independent flow control). |
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Ports |
A, B, X (Pilot), Y (Drain) |
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Mounting |
Cartridge Insert (Cavity per ISO 7368) |
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Electrical Connection |
12-pin connector (11+PE) per EN 175201-804 |
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Supply Voltage |
24 V DC (Integrated electronics, no external amplifier needed) |
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Command Signal |
4–20 mA (Analog input, corresponds to 0–100% valve opening) |
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Seal Material |
NBR (Standard for mineral oils) |
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Hydraulic Fluid |
Mineral oils (HL, HLP), HETG, HEES, HFDU |
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Operating Temperature |
-20°C to +60°C |
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Weight |
Approx. 7.4 kg |
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Country of Origin |
Germany |
Q1: What is the key difference between the 2WFCE series and the 2FRE series?
A: The 2WFCE is a cartridge-style, pilot-operated valve designed for very high flow (500 L/min) and high pressure (420 bar). It is installed in a manifold cavity. The 2FRE is a subplate-mounted, direct-operated valve typically used for lower flow applications. The 2WFCE also features Integrated Electronics (OBE), meaning the amplifier is built into the valve cover.
Q2: Does this valve include built-in pressure compensation?
A: No. The 2WFCE40S500L is a proportional directional/throttling valve. It does not have a built-in pressure compensator. To achieve load-independent flow control, you must install a separate pressure compensator (e.g., an FD-type pressure compensator) upstream or downstream of this valve.
Q3: What does the "24G1" suffix indicate?
A: 24G1 specifies the electrical interface:
24: 24 V DC supply voltage.
G1: Analog command input of 4–20 mA (current signal). This interface also provides a "Ready" signal output for monitoring the valve's electronic status.
Q4: What happens if power is lost or the cable breaks?
A: The valve has a fail-safe closed function. If the supply voltage fails or drops below the threshold, or if the solenoid cable breaks, the main stage spool is pushed to its seat by spring force and system pressure, blocking flow between ports A and B.
Q5: What is the purpose of the X and Y ports?
A: Port X is the pilot supply port. It must be connected to a pressurized oil source (often from port A or B, or an external source) to operate the pilot stage. Port Y is the drain port for the pilot control oil and must be connected directly to the tank with minimal backpressure.
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