Eaton VICKERS SystemStak Manual page 11

Performance Characteristics
Typical performance with mineral oil at 21 cSt (102 SUS) and at 50_C (122_F).
DGMX*-3-P*
DGMX3-3
DGMX2-3
psi bar
DGMX1-3
300
4000
250
3000
200
150
2000
100
1000
50
0
0
20 10 0
6 4 2 0
Reverse flow to T line
Flow rate
DGMX*-3-P*
Low Pressure/Flow Rate Minimum Performance
psi bar
1000 70
60
800
50
600
40
30
400
20
200
10
0
0
0
Dead Head Leakage
Typical leakage flow at 250 bar inlet
pressure from reduced pressure line into
T at "Dead Head" condition (i.e. No flow
required at the reduced pressure outlet.)
This leakage flow must be provided at
the inlet line P in order to maintain the
reduced outlet pressure.
DGMX1-3 = 1600
DGMX2-3 = 400
DGMX3-3 = 80
10 20 30 40 50 60 L/min
4 8 12 16 USgpm
Reduced pressure line
10 20 30 40 50 60
4 8 12 16 USgpm
Q max.
DGMR1-3-PP
psi bar
300
4000
250
3000
200
150
2000
100
1000
50
0
L/min
11
0 10 20 30 40 50
0 4 8 12
Flow rate
Effect of Back-Pressure
The effective reduced pressure is equal
to the valve adjustment setting plus any
back-pressure in line T
60 L/min
16 USgpm