Typical performance with mineral oil at 21 cSt (102 SUS) and at 50
_
C (122
_
F).
0
bar
50
60
40
30
20
10
L/min
0
4
8
12
16 USgpm
0
1000
psi
10
20
30
40
50
60
70
200
400
600
800
Reduced pressure setting
Q max.
DGMX*-3-P*
Low Pressure/Flow Rate Minimum Performance
Effect of Back-Pressure
The effective reduced pressure is equal
to the valve adjustment setting plus any
back-pressure in line T
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
300
250
200
150
100
50
0
bar
50
60
40
30
20
10
L/min
0
4
8
12
16 USgpm
0
1000
2000
3000
4000
psi
Pressure
Flow rate
DGMR1-3-PP
300
250
200
150
100
50
0
bar
50
60
40
30
20
10
L/min
0
4
8
12
16 USgpm
0
1000
2000
3000
4000
psi
Pressure
Flow rate
DGMX*-3-P*
DGMX
1
-3
DGMX
2
-3
DGMX
3
-3
4
6
2
10
20
0
Reduced pressure line
Reverse flow to T line
Performance Characteristics
11
