Check valve, pilot operated Type Z2S

Rexroth
  • Size 10
  • Component series 3X
  • Maximum operating pressure 315 bar
  • Maximum flow 120 l/min
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general

Size10
Weightkg3
Installation positionany
Ambient temperature rangeNBR seals°C-30 … +80
FKM seals°C-20 … +80

hydraulic

Size10
Maximum operating pressurebar315
Cracking pressure (in free direction)See characteristic curves
Maximum flowl/min120
Direction of flowsee symbols
Hydraulic fluidsee table “Hydraulic fluid”
Hydraulic fluid temperature range (at the valve working ports)NBR seals°C-30 … +80
FKM seals°C-20 … +80
Viscosity rangemm²/s2.8 … 500
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1)Class 20/18/15
Area ratioWithout pre-openingA1/A2 ~ 1/3 (see sectional drawing)
With pre-openingA3/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 fluidClassificationSuitable sealing materialsStandardsData sheet
Mineral oilsHL, HLP, HLPD, HVLP, HVLPDNBR, FKMDIN 5152490220
Bio-degradableInsoluble in waterHETGNBR, FKMISO 1538090221
HEESFKM
Soluble in waterHEPGFKMISO 15380
Flame-resistantWater-freeHFDU, HFDRFKMISO 1292290222
Containing waterHFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620)NBRISO 1292290223

Important information on hydraulic fluids:

  • For more information and data on the use of other hydraulicfluids, please refer to the data sheets above or contact us.
  • There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.).
  • The ignition temperature of the hydraulic fluid used must be 50 K higher than the maximum surface temperature.
  • Flame-resistant – containing water:
  • Maximum pressure differential per control edge 50 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 … 100%.
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