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[China]
Trade Verify
Address: RM 1902, EASEY BLDG., 253-261 HENNESSY ROAD, WANCHAI, HONGKONG
Contact name:Jason
Saar HK Electronic Limited |
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Verified Suppliers
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Rexroth 4WRZ Series Proportional directional valves, pilot operated, without electrical position feedback, without integrated electronics (OBE)
Size 10, 16, 25, 32, 52
Component series 7X
Maximum operating pressure 350 bar
Maximum flow 2800 l/min
Features
Pilot-operated, 2-stage proportional directional valves with
integrated electronics (OBE)
Control of the direction and magnitude of a flow
Operation by means of proportional solenoids with central thread
and detachable coil
For subplate mounting: Porting pattern according to ISO 4401
Optional auxiliary operating device
Spring-centered control spool
For appliSAARions outside these parameters, please consult us!
| Type | 4WRZ | ||||||
| Size | 10 | 16 | 25 | 32 | 52 | ||
| Installation position | any, preferably horizontal | ||||||
| Ambient temperature range | °C | -20 … +70 | |||||
| Storage temperature range | °C | -20 … +80 | |||||
| Weight | For subplate mounting | kg | 7.8 | 11.9 | 18.2 | 42.2 | 79.5 |
| for flange connection | kg | 77.5 | |||||
| with "D3" | kg | 8.3 | 12.4 | 18.7 | 42.7 | 80 | |
| Sine test according to DIN EN 60068-2-6 | 10 cycles, 10…2000.. 10 Hz with logarithmic frequency changing speed of 1 octave/min, 5 to 57 Hz, amplitude 1.5 mm (p-p), 57 to 2000 Hz, amplitude 10g, 3 axes | ||||||
| Noise test according to DIN EN 60068-2-64 | 20…2000 Hz, amplitude 0.05g2/Hz (10gRMS) 3 axes, testing time 30 min per axis | ||||||
| Shock test according to DIN EN 60068-2-27 | Half-sine 15g / 11 ms, 3 times in positive and 3 times in negative direction per axis, 3 axes | ||||||
| Damp heat according to DIN EN 60068-2-30 | Variant 2: +25 °C … +55 °C, 90 % … 97 % relative humidity, 2 cycles á 24 hours | ||||||
| Size | 10 | 16 | 25 | 32 | 52 | |||
| Maximum operating pressure | bar | 315 | 350 | |||||
| Operating pressure range | External pilot oil supply | bar | 30 … 100 | 20 … 100 | ||||
| Pilot control valve without "D3", internal pilot oil return | bar | 30 … 100 | ||||||
| Internal pilot oil supply | bar | 100 … 315 | 100 … 350 | |||||
| Maximum return flow pressure | Port T and R, external pilot oil return | bar | 315 | 250 | 150 | 250 | ||
| Port T, internal pilot oil return | bar | 30 | ||||||
| Port Y | bar | 30 | ||||||
| Maximum flow | l/min | 170 | 460 | 870 | 1600 | 2800 | ||
| Nominal flow | l/min | 25 50 85 | 100 125 150 180 | 220 325 | 360 520 | 1000 | ||
| Pilot flow | input signal 0 → 100% | Port X and Y | l/min | 3.5 | 5.5 | 7 | 15.9 | 7 |
| Pilot volume | switching process 0 → 100% | cm³ | 1.7 | 4.6 | 10 | 26.5 | 54.3 | |
| Hydraulic fluid temperature range | °C | -20 … +80 | ||||||
| preferably | °C | -40 … +50 | ||||||
| Viscosity range | mm²/s | 20 … 380 | ||||||
| preferably | mm²/s | 30 … 46 | ||||||
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) | Pilot control valve | Class 18/16/13 according to ISO 4406 (c) | ||||||
| Main valve | Class 20/18/15 according to ISO 4406 (c) | |||||||
| Hysteresis | % | ≤ 6 | ||||||
| 1) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
| Size | 10 | 16 | 25 | 32 | 52 | ||
| Voltage type | Direct voltage | ||||||
| Command value overlap | % | 15 | |||||
| Maximum solenoid current | A | 1.5 | |||||
| Solenoid coil resistance | Cold value at 20 °C | Ω | 4.8 | ||||
| Maximum hot value | Ω | 7.2 | |||||
| Actuated time | % | 100 | |||||
| Maximum coil temperature 1) | °C | + 150 | |||||
| Protection class according to DIN EN 60529 | IP65 (with mating connector mounted and locked) | ||||||
| Power supply | V | 24 | |||||
| Supply voltage range | V | 19.4 … 35 | |||||
| 1) | Due to the surface temperatures occurring at the solenoid coils, the European standards ISO 13732-1 and EN 982 need to be adhered to. |
| Hydraulic fluid | ClassifiSAARion | 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 please contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The flash point of the process and operating medium used must be 40 K over the maximum solenoid surface temperature. Flame-resistant - containing water: | |||
| R901334163 | 4WRZ16EA150-7X/6EG24ETK4/D3M |
| R900979554 | 4WRZ16EA150-7X/6EG24N9EK4/D3M |
| R901140837 | 4WRZ16EA150-7X/6EG24N9EK4/M |
| R900765375 | 4WRZ16EA150-7X/6EG24N9ETK4/D3M |
| R900728839 | 4WRZ16EA150-7X/6EG24N9ETK4/M |
| R901195742 | 4WRZ16EA150-7X/6EG24N9ETK4/M-674 |
| R901085822 | 4WRZ16EA150-7X/6EG24N9K4/D3M |
| R901091020 | 4WRZ16EA150-7X/6EG24N9K4/D3V |
| R978916080 | 4WRZ16EA150-7X/6EG24N9K4/D3V |
| R901124048 | 4WRZ16EA150-7X/6EG24N9K4/M |
| R900963363 | 4WRZ16EA150-7X/6EG24N9K4/V |
| R901053298 | 4WRZ16EA150-7X/6EG24N9TK4/D3M |
| R901416782 | 4WRZ16EA150-7X/6EG24N9TK4/D3V |
| R901122586 | 4WRZ16EA150-7X/6EG24N9TK4/M |
| R901357503 | 4WRZ16EA150-7X/6EG24XEJET/D3V |
| R900954661 | 4WRZE16EA150-7X/6EG24ETK31/A1M |
| R900784553 | 4WRZE16EA150-7X/6EG24ETK31/F1M |
| R901014847 | 4WRZE16EA150-7X/6EG24ETK31/F1V |
| R900971416 | 4WRZE16EA150-7X/6EG24K31/A1D3M |
| R901160822 | 4WRZE16EA150-7X/6EG24K31/A1M |
| R900967062 | 4WRZE16EA150-7X/6EG24K31/A1V |
| R901117243 | 4WRZE16EA150-7X/6EG24K31/F1D3V |
| R901233621 | 4WRZE16EA150-7X/6EG24K31/F1V |
| R900738677 | 4WRZE16EA150-7X/6EG24N9EK31/A1D3M |
| R978909308 | 4WRZE16EA150-7X/6EG24N9EK31/A1D3V |
| R901315878 | 4WRZE16EA150-7X/6EG24N9EK31/A1V |
| R978919051 | 4WRZE16EA150-7X/6EG24N9EK31/F1D3V |
| R900729304 | 4WRZE16EA150-7X/6EG24N9ETK31/A1D3M |
| R900930909 | 4WRZE16EA150-7X/6EG24N9ETK31/A1D3V |
| R978913404 | 4WRZE16EA150-7X/6EG24N9ETK31/A1V |
| R901194399 | 4WRZE16EA150-7X/6EG24N9K31/A1D3V |
| R901396896 | 4WRZE16EA150-7X/6EG24N9K31/A1M |
| R901395679 | 4WRZE16EA150-7X/6EG24TK31/F1M |
Saar HK Electronic Limited
Add: Rm 1506,28# Moyu Rd,Shanghai,China,201805
Tel: +86-21-5956 1370
Fax:+86-21-5012 3536
Email: jason@hydraulicpumpvalve.com
Skype: jason.saar
Mobile/WhatsApp: +8613918187448
