Reaction time for PVEA, PVEH and PVES (continued)
Supply voltage
Function
PVEA
Prop. fine
s
PVEH
Prop. high
s
PVES
Prop. super
s
Disconnected by means
of neutral switch
Reaction time from max. spool
travel to neutral position
max.
0.55
0.175
0.175
rated
0.40
0.09
0.09
min.
0.30
0.065
0.065
Constant voltage
Reaction time from neutral
position to max. spool travel
max.
0.50
0.20
0.20
rated
0.32
0.12
0.12
min.
0.25
0.05
0.05
Constant voltage
Reaction time from max. spool
travel to neutral position
max.
0.25
0.10
0.10
rated
0.20
0.09
0.09
min.
0.15
0.065
0.065
Hysteresis *
rated
2%
4%
∼
0%
The following technical data are from typical test results. For the hydraulic system a mineral based
hydraulic oil with a viscosity of 21 mm²/s [102 SUS] and a temperature of 50 °C [122 °F] were used.
Typical hysteresis characteristics for control signal vs spool travel of different PVE types*
2%
20%
PVEM
PVEA
+8
+6
+4
+2
0
-2
-4
-6
-8
4%
PVEH
157-504.10
PVES
~0%
* Hysteresis (control signal/spool travel) is indicated at rated voltage and f = 0.02 Hz. (one cycle = neutral
→
full A
→
full B
→
neutral)
The following technical data are from typical test results. For the hydraulic system a minetal based
hydraulic oil with a viscosity of 21 mm
2
/s [102 SUS] and a temperature of 50 °C [122 °F] were used.
Pilot oil consumption for PVEA, PVEH, PVES, PVEO and PVEM
Function
PVEA
Prop. fine
PVEH
Prop. high
PVES
Prop. super
PVEO
ON/OFF
PVEM
Prop. medium
Neutral without
supply voltage
0
0
0.3 l/min
[0.079 US gal/min]
0
0
Locked with supply
voltage
0.4 l/min
[0.106 US gal/min]
0.1 l/min
[0.026 US gal/min]
0.3 l/min
[0.026 US gal/min]
0.1 l/min
[0.026 US gal/min]
0.1 l/min
[0.026 US gal/min]
Continuous actuations
with supply voltage
1.0 l/min
[0.26 US gal/min]
0.7 l/min
[0.185 US gal/min]
0.8 l/min
[0.211 US gal/min]
0.7 l/min
[0.185 US gal/min]
0.5 l/min
[0.132 US gal/min]
One actuation
(neutral
→
max)
with supply voltage
2 cm³ [0.12 in³]
Technical Information
PVG 32 Proportional Valve Group
PVG 32 technical data
28 |
©
Danfoss | August 2017
520L0344 | BC00000038en-US0802
Содержание PVG 32
Страница 1: ...Technical Information Proportional Valve Group PVG 32 powersolutions danfoss com ...
Страница 73: ...Technical Information PVG 32 Proportional Valve Group Danfoss August 2017 520L0344 BC00000038en US0802 73 ...
Страница 74: ...Technical Information PVG 32 Proportional Valve Group 74 Danfoss August 2017 520L0344 BC00000038en US0802 ...
Страница 75: ...Technical Information PVG 32 Proportional Valve Group Danfoss August 2017 520L0344 BC00000038en US0802 75 ...