EATON
DGM**-5 30 Design E-VLST-BB002-E April 2015
N-15
N
Operating Data
Performance Data
DGMX2 Insertion Lossess
These curves show the typical pressure drop for each flow
path in the valve. The “P” port pressure drop is the pressure
drop for flow across the reducing valve spool in the fully
open condition. The total insertion loss for the valve must be
calculated by summing the losses through each of the four
flow paths.
DGMX2 Minimum Reduced Pressure
The curves (left) show the minimum reduced pressure
settings allowable for a given flow rate. The minimum
pressure setting applies regardless of inlet pressure.
Operation of the valve below minimum settings may cause
erratic valve operation due to insufficient spring force to
counter flow forces acting on the spool.
DGMX2 Pressure Override
These curves show the typical roll off or underride of the
different pressure ranges at maximum settings. Also shown
is the typical override of the relieving feature which prevents
undesirable pressure rise in the reduced pressure port.
Pressure Drop bar
Pressure Drop ps
i
15
10
100
0
0
Flow l/min
Flow USgpm
20
40
60
80
100 120
5
10
15
20
25
30
5
50
25
20
150
200
250
300
350
“A” or
“B” port
“P” port
“T” port
Pressure bar
Pressure psi
30
20
10
200
0
0
Flow l/min
Flow USgpm
20
40
60
80
100
120
5
10
15
20
25
30
400
“A” models
“B”, “F ” & “G ” models
Pressure bar
Pressure psi
200
150
100
4000
3000
2000
0
0
Flow l/min
Flow USgpm
20 40
60
80
100 120
5
10
15
20
25
30
50
1000
300
350
250
5000
10
5
0
15
0
0
6
0
4
0
2
Relieving mode
Reducing mode
“G ” max.
“F ” max.
“B” max.
“A” min.
“B”, “F ”, “G ” min.
“A” max.
Basic Characteristics
Maximum flow
120 l/min (32 USgpm)
Pilot flow@ 50
°
C (120
°
F) and 315 bar (4500 psi)
290–420 ml/min (18 in
3
/min-26 in
3
/min)
Maximum operating pressure
“A” models - 70 bar (1000 psi) * (inlet pressure) 50 bar (725 psi)
(reduced pressure) “B”, “F” & “G” models - 315 bar (4500 psi)
Leakage flow rate @ 50
°
C (120
°
F) and 315 bar (4500 psi)
80-200 ml/min (15-12 in
3
/min)
(Leakage to “Tb” around spool land @315 bar (4500 psi) Operating temperature -0
°
to 80
°
C (32
°
to 180
°
F)
Weights
3,5 kg (7.7 lbs)
* Slightly higher pressure override characteristics between 70 bar (1000 psi) and 315 bar (4500 psi) inlet.