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- Feature
- Model code
- Related Products
Feature:
1. Pilot operated proportional directional valve
2. For subplate mounting
3. The control of direction and rate of flow
4. Spring centered control spool
5. Valve and proportional control electronics from a single source
| General | |||||||||
| Valve type | .WRZ | .WRZE | |||||||
| Installation orientation | Optional,preferably horizontal(commissioning notes according to RE 07800) | ||||||||
| Storage temperature range | ℃ | -20 to+80℃ | |||||||
| Ambient temperature range | ℃ | -20 to+70 | -20 to+50 | ||||||
| Weight -Subplate mounting | Size 10 | kg | 7.8 | 8.0 | |||||
| Size 16 | kg | 13.4 | 13.6 | ||||||
| Size 25 | kg | 18.2 | 18.4 | ||||||
| Size 32 | kg | 42.2 | 42.2 | ||||||
| Size 52 | kg | 79.5 | 79.7 | ||||||
| -Flange connection | Size 52 | kg | 77.5 | 77.7 | |||||
| Hydraulic(measured with HLP46,voi=40℃±5℃ and p=100 bar) | |||||||||
| Size | Size | 10 | 16 25 | 32 | 52 | ||||
| Operating pressure-Pilot valve | External pilot oil supplyInternal pilot oil supply | bar | 30 to 100 | ||||||
| 20 to 100 | |||||||||
| bar | - | ||||||||
| 100 to315 with"D3"only | 100 to 350 with "D3"only | ||||||||
| -Main valve | bar | up to 315 | up to 350up to 350 | up to 350 | up to 350 | ||||
| Return flow pres- | -Port T (port R) | bar | up to 315 | up to 250up to 250 | up to 150 | up to 250 | |||
| sure | (external pilot oil drain) | ||||||||
| -PortT | bar | up to 30 | up to 30 up to 30 | up to 30 | - | ||||
| (internal pilot oil drain) | |||||||||
| -Port Y | bar | up to 30 | up to 30 up to 30 | up to 30 | up to 30 | ||||
| Flow of the main valve | I/min | up to 170 | up to 460up to 870 | up to 1600 | up to 2800 | ||||
| Pilot oil flow in port X and Y with a stepped | I/min | 3.5 | 5.5 7 | 15.9 | 7 | ||||
| input signal O→100% | |||||||||
| Pilot oil volume | cm³ | 1.7 | 4.6 10 | 26.5 | 54.3 | ||||
| for switching process 0→100% | |||||||||
| Hydraulic fluid | Mineral oil(HL,HLP)to DIN 51524 Further fluids on enquiry! | ||||||||
| Hydraulic fluid temperature range | ℃ | -20 to+80(preferably+40 to+50) | |||||||
| Viscosity range | mm²/s | 20 to 380(preferably 30 to 46) | |||||||
| Max.permissible degree of contamination of the hydraulic fluid | |||||||||
| Cleanliness class | -Pilot valve | Class 18/16/131) | |||||||
| to ISO 4406(c) | -Main valve | Class 20/18/151) | |||||||
| Hysteresis | % | ≤6 | |||||||
