0811402083 DREBE6X-1X/175MG24K31F1M Rexroth proportional relief valve
|
Parameter |
Specification |
|---|---|
|
Order Number |
0811402083 |
|
Model |
DREBE6X-1X/175MG24K31F1M |
|
Type |
Pilot-operated proportional 3-way pressure reducing valve |
|
Function |
Reduce inlet pressure (P) to controlled secondary pressure (A); excess flow to tank (T) |
|
Nominal Size |
NG6 (CETOP 3, Size 6) |
|
Max. Operating Pressure |
Port P (Inlet): 315 bar |
|
Adjustable Pressure Range |
0 – 175 bar (electrically proportional) |
|
Max. Flow Capacity |
40 L/min |
|
Pilot Flow Consumption |
Approx. 0.6 L/min (internal pilot supply) |
|
Valve Design |
Pilot-operated spool valve, with integrated electronics (OBE) |
|
Supply Voltage |
24V DC (G24) |
|
Control Signal |
4 – 20 mA (F1) |
|
Electrical Connector |
6-pin + PE (K31) per DIN 43563 (plug included, socket separate) |
|
Special Features |
Position feedback (closed-loop), Integrated electronics (OBE), No check valve (M) |
|
Mounting Interface |
ISO 4401-03-02-0-05 (NG6 subplate) |
|
Seal Material |
NBR (M) |
|
Suitable Media |
Mineral oils (HL, HLP), HLP-D, HVLP, HFC fluids |
|
Media Temperature |
-20°C to +80°C |
|
Viscosity Range |
10 – 800 mm²/s (recommended 30–46 mm²/s) |
|
Ambient Temperature |
-20°C to +50°C (electronics) |
|
Cleanliness Requirement |
ISO 4406 20/18/15 or better |
|
Control Performance |
Hysteresis ≤ ±1 %, Repeat accuracy < ±2 % |
|
Weight |
Approx. 2.4 kg |
| R900932943 DRE6-1X/100MG24K4M |
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| R901208854 DRE6-1X/100MG24N9K4M |
| R901252618 DRE6-1X/100MG24N9K4V |
| R900548837 DRE6-1X/100MG24NK4M |
| R900959265 DRE6-1X/100MG24NK4V |
| R900534499 DRE6-1X/100MG24NZ4M |
| R900567548 DRE6-1X/100MG24NZ4M-1 |
| R900574310 DRE6-1X/100MG24NZ4V |
| R900529313 DRE6-1X/100MG24Z4M |
| R900532493 DRE6-1X/100MG24Z4M-1 |
| R900928873 DRE6-1X/210MG24K4M |
| R900944999 DRE6-1X/210MG24K4V |
| R901208855 DRE6-1X/210MG24N9K4M |
| R900901953 DRE6-1X/210MG24NK4M |
| R900562481 DRE6-1X/210MG24NZ4M |
| R900547632 DRE6-1X/210MG24NZ4V |
| R900524530 DRE6-1X/210MG24Z4M |
| R900578089 DRE6-1X/210MG24Z4V |
| R900954429 DRE6-1X/50MG24K4M |
| R900712624 DRE6-1X/50MG24K4V |
| R901208742 DRE6-1X/50MG24N9K4M |
| R901252621 DRE6-1X/50MG24N9K4V |
| R900916195 DRE6-1X/50MG24NK4M |
| R901206527 DRE6-1X/50MG24NK4V |
| R900535381 DRE6-1X/50MG24NZ4M |
| R900553500 DRE6-1X/50MG24NZ4V |
| R900549737 DRE6-1X/50MG24Z4M |
| R901439283 DRE6-1X=210MG24K4M |
| 0811402055 DRE6X-1X/175MG24-8NZ4M |
| 0811402060 DRE6X-1X/175MG24-8NZ4M-6 |
| 0811402056 DRE6X-1X/245MG24-25NZ4M |
| 0811402057 DRE6X-1X/245MG24-25NZ4M-8 |
| 0811402058 DRE6X-1X/310MG24-8NZ4M |
| 0811402054 DRE6X-1X/70MG24-8NZ4M-7 |
| 0811402053 DRE6X-1X/75MG24-25NZ4M |
FAQ:
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Integrated Electronics (OBE) & Closed-Loop
The "E" in DREBE confirms On-Board Electronics (OBE). This means the valve contains its own amplifier and position feedback sensor. You supply 24V DC power and a 4–20 mA command signal directly to the valve's K31 connector. This closed-loop design provides high accuracy (hysteresis ≤1%) and eliminates the need for an external VT-5000 amplifier.
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4–20 mA Control Signal (F1)
The "F1" suffix indicates the control input is a 4–20 mA current signal. This is different from the common 0–10 V variant (A1) and is often preferred for industrial applications due to its noise immunity over long cable runs.
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High Reduced Pressure Rating (175 bar)
The "175" denotes the maximum electrically adjustable reduced pressure at port A. This is a mid-range variant, suitable for applications requiring higher secondary pressures than the 75 bar version but lower than the 310 bar variant.
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3-Way Pressure Reducing Logic
This valve operates as a 3-port device (P, A, T). It continuously compares the A-port pressure with the electrical setpoint. If the load pressure at A tries to exceed the setpoint (e.g., due to an overrunning load), the valve opens the A→T path to "dump" the excess pressure and maintain regulation.
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Critical Installation Notes
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Direct Signal Connection: Connect 24V DC and 4–20 mA signal directly to the K31 connector. Do not use an external amplifier.
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Tank Line Backpressure: Port T must be connected to tank with minimal backpressure. High backpressure at T will be added to the A-port pressure, causing inaccurate regulation (P_A_effective = P_set + P_T_backpressure).
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Pilot Flow: The valve uses an internal pilot supply (approx. 0.6 L/min), so no external pilot line is needed, but ensure your pump flow accounts for this constant consumption.
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Correction: Your description mentioned "proportional relief valve", but this model is specifically a proportional pressure reducing valve. It controls the downstream (A-port) pressure, not the system relief pressure.
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