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Valve Hydraulic 
Check valve, pilot operated Type Z2S
- Size 10
- Component series 3X
- Maximum operating pressure 315 bar
- Maximum flow 120 l/min
general
| Size | 10 | ||
| Weight | kg | 3 | |
| Installation position | any | ||
| Ambient temperature range | NBR seals | °C | -30 … +80 |
| FKM seals | °C | -20 … +80 | |
hydraulic
| Size | 10 | ||
| Maximum operating pressure | bar | 315 | |
| Cracking pressure (in free direction) | See characteristic curves | ||
| Maximum flow | l/min | 120 | |
| Direction of flow | see symbols | ||
| Hydraulic fluid | see table “Hydraulic fluid” | ||
| Hydraulic fluid temperature range (at the valve working ports) | NBR seals | °C | -30 … +80 |
| FKM seals | °C | -20 … +80 | |
| Viscosity range | mm²/s | 2.8 … 500 | |
| Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) | Class 20/18/15 | ||
| Area ratio | Without pre-opening | A1/A2 ~ 1/3 (see sectional drawing) | |
| With pre-opening | A3/A2 ~ 1/11,5 (see sectional drawing) | ||
| Version “SO60” | A1/A4 ~ 1/6 (see sectional drawing) | ||
| 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. |
| Hydraulic fluid | Classification | Suitable sealing materials | Standards | Data sheet | |
| Mineral oils | HL, HLP, HLPD, HVLP, HVLPD | NBR, FKM | DIN 51524 | 90220 | |
| Bio-degradable | Insoluble in water | HETG | NBR, FKM | ISO 15380 | 90221 |
| HEES | FKM | ||||
| Soluble in water | HEPG | FKM | ISO 15380 | ||
| Flame-resistant | Water-free | HFDU, HFDR | FKM | ISO 12922 | 90222 |
| Containing water | HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) | NBR | ISO 12922 | 90223 | |
Important information on hydraulic fluids:
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