Function and configurationGeneral:The 3-way pressure reducing valve type 3DREP 6... is directly actuated by proportional solenoids. They convert an electrical input signal into a proportional pressure...
Product Detail
Function and configuration
General:
The 3-way pressure reducing valve type 3DREP 6... is directly actuated by proportional solenoids. They convert an electrical input signal into a proportional pressure output signal.
Design:
The valve mainly comprises of: Housing (1) with mounting surface, Control spool (2) with pressure measuring spools (3), Solenoids (4) with control thread and Optional integrated valve electronics (5).
Function:
With the solenoids (4) de-energized the control spool (2) is held in its centeres position by compression springs. The control spool (2) is directly actuated when one of the solenoids is energised E.g. by energizing solenoid "a". The pressure measuring spool (3) and control spool (2) move to the right in proportion to the electrical input signal. The connection from P to B and A to T is via orifice form cross-sections with progressive flow Characteristics – De-energization of the solenoid (4). The control spool (2) is returned to its centre position by the compression springs.
In the middle postion the connections A and B to T are open, therefore, the pressure fluid can freely flow to tank.
Type 3DREP6...-L2X/...
Symbols
Ordering code
Technical data
| Hydraulic | ||||
| Valve type | 3DREP6...L2X | 3DREPE6...L2X | ||
| Installation | optional, preferably | horizontal | ||
| Weight | KG | 2.0 | 2.2 | |
| Ambient temperature range | ℃ | -20 to+70 | -20 to+50 | |
| Max.flow | L/min | 15(Δp=50 bar) | ||
| Hysteresis | % | ≤5 | ||
| Repeatability accuracy | % | ≤1 | ||
| Response sensitivity | % | ≤0.5 | ||
| Operating pressure range | Port P | bar | 20 to 100 for pressure stage 16 | |
| 30 to 100 for pressure stage 25 | ||||
| 50 to 100 for pressure stage 45 | ||||
| Port T | 0to 3 | |||
| Pressure fluid | Mineral oil (HL, HLP) to DIN 51524 | |||
| other pressure fluids on request | ||||
| Pressure fluid temperature range | ℃ | -20 to+80 | ||
| Viscosity range | m㎡/s | 20 to 380 (preferably 30 to 46) | ||
| Degree of contamination | Maximum permissible degree of contamination of the pressure fluid is to NAS 1638 class 9 or 20/18/15, ISO4406 | |||
| Electrical | ||||
| solenoid | ||||
| Valve type | 3DREP6...L2X | 3DREPE6...L2X | ||
| Voltage type | DC | |||
| Command value signal Voltage input "A1" | - | ±10V | ||
| Max.current per solenoid | A | 1.5 | 2.5 | |
| Solenoid coil resistance | Cold value at 20℃ | Ω | 4.8 | 2 |
| Max.warm value | 7.2 | 3 | ||
| Duty | % | ED100% | ||
| Coil temperature | ℃ | up to 150 | ||
| Valve protection to EN 60529 | IP 65 with mounted and fixed plug-in connector | |||
| Amplifier | VT-VSPA2-...-L2X | integrated | ||
| Supply voltage | Nominal voltage | VDC | 24 | |
| Lower limiting value | V | 19 | ||
| Upper limiting value | V | 35 | ||
| Amplifier current consumption | Imax | A | 1.8 | |
| Impulse current | A | 4 | ||
Electrical connections, plug-in connectors
Integrated control electronics for type 3DREPE6
.Integrated electronics (OBE) for type 3DREPE6
Characteristic curves(measured with HLP46, oil =40°C +5°C)
Unit dimensions
Unit dimensions
