Wenzhou Prance Hydraulic Equipment Co., Ltd
Hydraulic Proportional Valve With Position Feedback 4WREE
1.Valve for controlling both direction and flow of a hydraulic fluid
2.For subplate mounting
3.Electrical position feedback
4.Spring centred control spool
5.Low pressure drop across the control lands
6.Both valve and electronic control from onesupplier
7.Mounting pattern to DIN 24 340 form A, IS04401 and CETOP-RP121H
Detailed description
This hydraulic control valve is specifically designed to regulate both the direction and flow rate of hydraulic fluid, ensuring precise and stable control of hydraulic systems in various industrial applications. It adopts a subplate mounting design, which facilitates easy installation, maintenance and replacement, making it suitable for integrated hydraulic system configurations. Equipped with electrical position feedback, the valve can real-time monitor the position of the control spool and transmit signals to the control system, enabling closed-loop control and improving the accuracy of the entire hydraulic system. The control spool is spring-centered, allowing it to automatically return to the neutral position when the electrical signal is interrupted, effectively preventing system malfunctions and ensuring operational safety. It features a low pressure drop across the control lands, which reduces energy loss during fluid transmission and enhances the overall efficiency of the hydraulic system. To ensure compatibility and after-sales convenience, both the valve and its matching electronic control components are supplied by a single manufacturer, avoiding compatibility issues between different brands. Additionally, its mounting pattern complies with multiple international standards, including DIN 24 340 form A, ISO 4401 and CETOP-RP121H, ensuring good interchangeability with global standard hydraulic equipment.
Technical data (For applications outside these parameters please consult us!)
General
| Sizes | Size | 6 | 10 | |
| Weight | - Type 4WRE | kg | 2.2 | 6.3 |
| - Type 4WREE | kg | 2.4 | 6.5 | |
| Installation position | Any, preferably horizontal | |||
| Ambient temperature range | - Type 4WRE | ℃ | -20 to +70 | |
| - Type 4WREE | ℃ | -20 to +50 | ||
| Storage temperature range | ℃ | -20 to +80 | ||
| MTTFd values according to EN ISO 13849 | Years | 150 1) (for more information see data sheet 08012) | ||
hydraulic (measured with HLP46,θoil=40℃+5℃ and p= 100 bar)
| Maximum operating pressure |
- Port A,B,P | bar | 315 | |
| - Port T | bar | 210 | ||
| Rated flow qV rated with Δp = 10 bar | l/min | 4,8,16,32 | 25,50,75 | |
| Recommended maximum flow | l/min | 80 | 180 | |
| Hydraulic fluid | See table below | |||
| Hydraulic fluid temperature range | ℃ | -20 to +80 (preferably +40 to +50) | ||
| Viscosity range | mm2/s | 20 to 380 (preferably 30 to 46) | ||
| Maximum admissible degree of contamination of the hydraulic fluid,cleanliness class according to ISO 4406 (c) | Class 20/18/15 2) | |||
| Hysteresis | ％ | ≤ 1 | ||
| Range of inversion | ％ | ≤ 0.05 | ||
| Response sensitivity | ％ | ≤ 0.05 | ||
| Zero shift upon change of hydraulic | ％/10K | ≤ 0.15 | ||
| fluid temperature and operating pressure | ％/100 bar | ≤ 0.1 | ||
1)With control spool types E, E1, EA, W, W1, WA; in longitudinal control spool direction, there is sufficient positive overlap without shock/vibration load; observe the installation orientation with regard to the main direction of acceleration.
2) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and at the same time increases the service life of the components.
| Hydraulic fluid | Classification | Suitable sealing materials |
Standards | |
| Mineral oils and related hydrocarbons | HL, HLP | NBR,FKM | DIN 51524 | |
| Flame-resistant | －containing water | HFC (Fuchs HYDROTHERM 46M, Petrofer Ultra Safe 620) |
NBR | ISO 12922 |
| Important information on hydraulic fluids! -For more information and data on the use of other hydraulic fluids refer to data sheet 90220 or contact us! -There may be limitations regarding the technical valve data (temperature, pressure range, service life , maintenance intervals, etc.)! -The flash point of the process and operating medium used must be 40 K higher than the maximum solenoid surface temperature. - Flame-resistant- wate-containingr: Maximum pressure differential per control edge 175 bar. Pressure pre-loading at the tank port > 20% of the pressure differential; otherwise, increased cavitation. Life cycle as compared to operation with mineral oil HL,HLP 50% to 100% |
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Electric
| Size | Size | 6 | 6 | |
| Voltagetype | Direct voltage | |||
| Solenoid coil | - Cold value at 20 ℃ | Ω | 2.65 | 4.55 |
| resistance | Maximum hot value | Ω | 4.05 | 6.82 |
| Duty cycle | ％ | 100 | ||
| Maximum coil temperature 1) | ℃ | up to 150 | ||
| Electrical connection see page 8 and 9 |
- Type 4WRE | With connector according to DIN EN 175301-803 and ISO 4400 | ||
| Mating connector according to DIN EN 175301-803 and ISO 4400 2) | ||||
| - Type 4WREE | With connector DIN EN 175201-804 | |||
| Mating connector DIN EN 175201-804 2) IP65 with mating connector mounted and locked |
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| Protection class of the valve according to EN 60529 | IP65 with mating connector mounted and locked | |||
Control electronics
| Type 4WRE | 4/3 version | Digital | VT-VRPD-2-2X/V0/0 according to RE 30126 | |
| Amplifier in | ||||
| euro-card format 2) | Analog | VT-VRPA2-1-1X/V0 according to data sheet 30119 |
VT-VRPA2-2-1X/VO according to data sheet 30119 | |
| Module amplifier 2) | Analog | VT-MRPA2-1 according to data sheet 30219 |
VT-MRPA2-2 according to data sheet 30219 | |
| Type 4WRE...A... | 4/2 version | Analog | VT-MRPA1-1 according to data sheet 30219 |
VT-MRPA1-2 according to data sheet 30219 |
| Module amplifier 2) | ||||
| Type 4WREE | analog command value module | Integrated in the valve, see page 9 | ||
| VT- SWMA-1-1X/...according to data sheet 29902 | ||||
| analog command value module | VT-SWMAK-1-1X/... according to data sheet 29903 | |||
| analog command value card | VT-SWKA-1-1X/... according to data sheet 30255 | |||
| digital command value card | VT-HACD -1-1X/... according to data sheet 30143 | |||
| Supply voltage | Nominal voltage | VDC | 24 | |
| lower limit value | V | 19.4 | ||
| upper limit value | V | 35 | ||
| Current consumption | Imax | A | <2 | |
| of the amplifier | Pulse current | A | 3 | |
1)Due to the temperatures occurring at the surfaces of the solenoid coils, the European standards ISO 13732-1 and EN ISO 4413 need to be adhered to!
2) Separate order
Notice:
For information on the environmental simulation testing for the areas EMC (electromagnetic compatibility), climate and mechanical load see data sheet 29061-U (declaration on environmental compatibility).
