Technical Data - Bosch Rexroth HED 8 Series Manual

4/16 HED 8 | Pressure Switch

Technical data

(For applications outside these parameters, please consult us!)
General
Mass
Installation position
Ambient temperature range
Sine test according to DIN EN 60068-2-6:1996-05
Transport shock according to DIN EN 60068-2-27:1995-03
Bump test according to DIN EN 60068-2-29:1995-03
Noise test according to DIN EN 60068-2-64:1996-05
Conformity ▶ CE
▶ UL
▶ CCC
Hydraulic
Pressure rating
Max. operating pressure
Conformity ▶ NBR/FKM seals
▶ MT version
Pressure adjustment range (decreasing)
Pressure differential per rotation
Hydraulic fluid
1)
Hydraulic fluid temperature range
(at the valve operating ports)
Viscosity range
Maximum permissible degree of contamination of the hy-
draulic fluid, cleanliness class according to ISO 4406 (c)
Load cycles
Hydraulic fluid
Mineral base oils
Bio-degradable ▶ Insoluble in water
▶ Soluble in water
Flame-resistant ▶ Water-free
▶ Containing water
Important information on hydraulic fluids:
▶ For more information and data about the use of other hydraulic
fluids, refer to data sheets above or contact us!
▶ There may be limitations regarding the technical data (tempera-
ture, pressure range, life cycle, maintenance intervals, etc.).
Bosch Rexroth AG, RE 50061, edition: 2016-09
1)
Classification
HL, HLP, HLPD, HVLP, HVLPD
HETG
HEES
HEPG
HFDU, HFDR
HFC (Fuchs Hydrotherm 46M,
Petrofer Ultra Safe 620)
kg 0.8
any
°C -25 to +50 (NBR seals)
-20 to +50 (FKM seals)
-40 to +50 (low-temperature seals)
5...2000 Hz, max. 10 g, 10 double cycles
15 g / 11 ms
25 g / 6 ms
20...2000 Hz 10...30 min
DIN EN 61058-1: 2002 / A2: 2008
DIN EN 60947-1: 2007 / A1: 2011
DIN EN 60947-5-1: 2004 / A1: 2009
DIN EN 60529: 1991 / A2: 2013
UL 508 17th edition File No E223220 (up to 350 bar)
GB 14048.5-2008
bar 50 100
bar 350 350
bar 315 315
bar 5...50 10...100
bar ≈19 ≈35
see table below
°C -25 ... +80 (NBR seals)
-20 ... +80 (FKM seals)
-40 ... +80 (low-temperature seals)
mm /s 10 ... 800
2
Class 20/18/15
2)
≥ 5 million
Suitable
sealing materials
NBR, FKM low-temperature
seals
NBR, FKM
FKM
FKM
FKM
NBR
▶ Flame-resistant – contains 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 to 100%
▶ Bio-degradable and flame-resistant: When using these hydraulic
fluids that are simultaneously zinc-solving, zinc may accumulate
(700 mg zinc per pole tube).
200 350 630
350 400 630
315 315
15...200 25...350 40...630
≈77 ≈120 ≈214
Standards Data sheet
DIN 51524 90220
ISO 15380 90221
ISO 15380
ISO 12922 90222
ISO 12922 90223
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