0
20 40 60 80
100
120 140
160
180 200 220 240
0
5
10
15
20
25
260 280
300
30
1
3
4
2
4/6 Bosch Rexroth AG Hydraulics
Z2S RE 21558/08.05
Technical data (for applications outside these parameters, please consult us!)
1)
Suitable for NBR and FKM seals
2)
Suitable only for FKM seals
3)
The cleanliness classes specified for components must be
adhered to in hydraulic systems. Effective filtration prevents
Hydraulic
Maximum operating pressure bar 315
Cracking pressure in free direction See characteristic curves below
Maximum flow l/min 300
Direction of flow See symbols on page 2
Hydraulic fluid Mineral oil (HL, HLP) to DIN 51524
1)
; fast bio-degradable
hydraulic fluids to VDMA 24568 (see also RE 90221); HETG
(rape seed oil)
1)
; HEPG (polyglycols)
2)
; HEES (synthetic
esters)
2)
; other hydraulic fluids on enquiry
Hydraulic fluid temperature range °C –30 to +80 (NBR seals)
–20 to +80 (FKM seals)
Viscosity range mm
2
/s 2.8 to 500
Max. permissible degree of contamination of the hy-
draulic fluid - cleanliness class to ISO 4406 (c)
Class 20/18/15
3)
Area ratio A
1
/A
2
= 1/11.8; A
3
/A
2
= 1/2.8 (see sectional drawing, page 2)
malfunction and, at the same time, prolongs the service life
of components.
For the selection of filters, see data sheets RE 50070,
RE 50076, RE 50081, RE 50086 and RE 50088.
General
Weight kg approx. 6.5
Installation orientation Optional
Ambient temperature range °C –30 to +80 (NBR seals)
–20 to +80 (FKM seals)
Characteristic curves (measured with HLP46, ϑ
oil
= 40 °C ± 5 °C)
Flow in l/min →
Pressure differential in bar →
Δp-q
V
characteristic curves
A1 → A2; B1 → B2
A2 → A1; B2 → B1
Cracking pressure:
1 3 bar
2 5 bar
3 7.5 bar
4 10 bar