? Direct-acting, used for controlling flow rate and flowing direction of fluid
? Valve spool spring centering alignment
? Electromagnet operated spool action
? Optional built-in amplifier
? Suitable for overhead working trucks, metallurgy and other industries
| Hydraulic | ||||||||
| Installation position | optional, preferably horizontal | |||||||
| Size | 6 | 10 | ||||||
| Weight | 4WRA...L2X | Kg | 2 | 6.6 | ||||
| 4WRAE...L2X | 2.2 | 6.8 | ||||||
| Rated flow qnom，when Δp = 10 bar | L/min | 7、15、26 | 30、60 | |||||
| Hysteresis | % | ≤5 | ||||||
| Repeatability | % | ≤1 | ||||||
| Response sensitivity | % | ≤0.5 | ||||||
| Max. operating pressure | Port s A B P | bar | 315 | |||||
| Port T | bar | 210 | ||||||
| Fluid | Mineral oil suitable for NBR and FKM seal | |||||||
| Phosphate ester for FKM seal | ||||||||
| Fluid temperature range | 4WRA...L2X | ℃ | -20℃ to 70℃（-4°F to 158°F） | |||||
| Viscosity range | mm2/s | 20 to 380（preferably 30 to 46） | ||||||
| Degree of contamination | NAS1638 class9 or ISO 4406 class 20/18/15 | |||||||
| Electrical data | ||||||||
| 1)solenoid | ||||||||
| Voltage type | DC | |||||||
| Command value signal | ±10V or 4～20mA | |||||||
| Max. current per solenoid | A | 2.5 | 1.5 | 0.8 | ||||
| Coil resistance | Cold value | Ω | 2 | 5 | 19.5 | |||
| Max. warm value | 3 | 7.2 | 28.8 | |||||
| Duty | % | ED100% | ||||||
| Coil temperature | ℃ | 150 | ||||||
| Valve protection to EN 60529 | IP 65 | |||||||
| 2)Control electronics | ||||||||
| Ampilfier | 4WRA...L2X | VT-VSPA2-1-L1X | ||||||
| 4WRAE...L2X | Integrated in the valve(OBE) | |||||||
| Operating voltage | Nominal voltage | VDC | 24 | |||||
| Lower limiting value | V | 21/22(4WRA)，19(4WRAE) | ||||||
| Upper limiting value | V | 35 | ||||||
| Amplifier current consumption | Imax | A | <1.8 | |||||
| Imax | A | 3 | ||||||
ADD: Address: No. 81, Zhuhang Road, Minhang District, Shanghai（Shanghai Lixin Hydraulics Co., Ltd.)
TEL: 021-31616718 Tel: 021-31616718, ext. 8000 ( reception )
? 2023 Shanghai Lixin Hydraulics Co., Ltd. copyright hu13042344
