Technical Characteristics; Pvpf, Pump Side Module; Open Center Flow Rating; Closed Center Flow Rating - Danfoss PVG 100 Technical Information

Technical Information
PVG 100 Proportional Valve Group

Technical characteristics

PVPF, pump side module

Open center flow rating

Closed center flow rating

28 | © Danfoss | May 2018
The characteristics in this catalog are typical measured results. During measuring a mineral based
hydraulic oil with a viscosity of 21 mm
Pressure relief valve characteristic in PVP
Neutral flow pressure in PVP, open center
∆ ∆
p p
psi bar
P
30
400
25
300
20
15
200
10
100
5
0 0
0 50 100 150
0 10 20 30 40
The pressure relief valve is set at an oil flow of 15 l/min [4 US gal/min]. Setting range: 30 to 350 bar [435 to
5075 psi].
The flow rating of the different main spools will depend on the standby pressure available. In open center
systems, the standby pressure equals the pressure drop P–>T, see
l/min led to tank across the pressure adjusting spool, will generate a standby pressure of app. 15 bar (PVP
with 12 bar spring). The according main spool flow ratings will correspond to the curves.
For PVPs with a 20 bar spring, the standby pressure available will be 20 bar or higher. Hence the
according main spool flow ratings will correspond.
The flow rating of a the different main spools, PVBS, is dependent upon the Load Sense margin (pump
margin pressure). The nominal flows specified for each PVBS is specified at 15 bar [218 psi] Ls margin
pressure. If LS margin is increased above 15 bar [218 psi], the PVBS will deliver more flow then the
nominal rating. The following curves show the relationship between LS margin and work port flow.
2
/s [102 SUS] at a temperature of 50°C [122°F] was used.
T
20 bar spring
[290 psi spring]
12 bar spring
[174 psi spring]
PVPH
PVPE
Q
p
200 250 300 l/min
Q
p
50 60 70 80 US gal/min
155B390.11
the diagram above. A pump flow of 150
520L0720 | BC00000039en-US0502