Check valve Type Z1S

Rexroth
  • Size 6
  • Component series 4X
  • Maximum operating pressure 350 bar
  • Maximum flow 40 l/min
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general

Size 6
Weight kg 0.8
Installation position any
Ambient temperature range °C -20 … +80

hydraulic

Size 6
Maximum operating pressure bar 350
Cracking pressure bar 0.5 / 1.5 / 3 / 5
Maximum flow l/min 40
Hydraulic fluid see table
Hydraulic fluid temperature range °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
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 FKM ISO 12922 90222
HFDR FKM
Containing water HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) NBR ISO 12922 90223
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%.
  • Bio-degradable and flame-resistant – containing water: If this hydraulic fluid is used, small amounts of dissolved zinc may get into the hydraulic system.
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