17
DGMR1 Internal Pilot Operated Sequence Valves
General Description
These two-stage pressure operated
valves are normally closed to flow
through the main spool flow path. When
system pressure reaches or exceeds
the valve setting, the main spool flow
path opens. Pilot flow may be externally
or internally drained to tank.
Any pressure in the line to which these
valves are drained is additive to the
valve pressure setting.
The valve pressure setting is adjustable
by means of either an adjustable screw
containing an internal hex, a
hand-adjust knob, or a micrometer knob
with keylock. Different spring ratings
cover an overall pressure range from
5 to 315 bar (75-4500 psi).
3 45 87691 2
Model Code
1
2
Valve function
Manifold or subplate mounted
sequence valve.
Interface
5 - ISO 4401-AC-05-4-A, CETOP
RP35H Size 5 ANSI/NFPA D05
5N - NFPA-D05 (Alt A)
5P - NFPA-D05 (Alt B)
Port operated upon
P - Pressure port
3
4
5
6
Pilot control
P - Pressure port
Pressure range
A - 5 to 50 bar (75 to 725 psi)
B - 5 to 100 bar (75 to 1450 psi)
F - 5 to 200 bar (75 to 2900 psi)
G - 5 to 315 bar (75 to 4500 psi)
Adjustment device
H - Knob adjuster
K - Micrometer knob with keylock
W - Screw with locknut
External drain
E - External drain
Omit for internal drain models.
Gage port & thread type
Gage port (all models),
external drain (E) (optional).
B -G
1
/
8
” (
1
/
8
” BSPF)
S -SAE-4 O-ring boss port
(0.4375-20 UNF-2B thread)
Design number - 30 series
Subject to change. Installation
dimensions unaltered for design
numbers 30 to 39 inclusive.
9
7
8
Functional Symbols
P
P
T
B
T
B
T
A
T
A
B
B
A
A
DGMR1-5-PP-**-*-30
P
P
T
B
T
B
T
A
T
A
B
B
A
A
X
X
Y
Y
DGMR1-5N-PP-**-E-*-30
P
P
T
B
T
B
T
A
T
A
B
B
A
A
DGMR1-5-PP-**-E-*-30
P
P
T
B
T
B
T
A
T
A
B
B
A
A
X
X
Y
Y
DGMR1-5N-PP-**-*-30
P
P
T
B
T
B
T
A
T
A
B
B
A
A
X
X
Y
Y
DGMR1-5P-PP-**-E-*-30
P
P
T
B
T
B
T
A
T
A
B
B
A
A
X
X
Y
Y
DGMR1-5P-PP-**-*-30
G
G
G
G
G
G
DR
DR
DR
18
Operating Data
Basic Characteristics
Maximum flow: 120 l/min (32 USgpm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pilot flow @ 50 C (120 F) and 315 bar (4500 psi): 400-500 ml/min (24-31 in
3
/min). . . . . . . . . . . . . . . . .
Leakage flow rate @ 50 C (120 F) and 315 bar (4500 psi): 80-200 ml/min (5-12 in
3
/min). . . . . . . . .
Maximum operating pressure: 315 bar (4500 psi). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating temperature: -0 to 80 C (32 to 180 F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weight: 3,5 kg (7.7 lbs.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Drop bar
Pressure Drop psid
15
10
100
00
Flow l/min
Flow USgpm
20 40 60 80 100 120
51015202530
Insertion Losses
5
50
25
20
Pressure bar
Pressure psi
200
150
100
4000
3000
2000
00
Flow l/min
Flow USgpm
20 40 60 80 100 120
51015202530
Pressure Override
50
1000
300
350
250
5000
150
200
250
300
350
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 sequence valve spool in
the fully open position.
Typical pressure override of the
different pressure ranges at minimum
and maximum settings.
“A” or “B” port
“P” port*
“T” port
“G” max.
“F” max.
“B” max.
“A” max.
Minimum setting
(all models)
*Spool held in open position
The total insertion loss for
the valve must be calculated by
summing the losses through
each of the four flow paths.
19
Installation Dimensions
* Gage port. External
connection port thread
DGMR1-5-PP-**-30
Sequence Valve
60
(2.36)
10
(0.39)
30,5
(1.20)
48
(1.89)
“W” models (max. ext.)
Wrench size
11,5
(0.45)
ISO 4401-AC-05-4-A (NFPA D05)
Mounting surface
13,5
(0.53)
4 mounting holes
∅ 6,9 (0.27) through
∅ 9,50 (0.37) counterbore
46,5 (1.83) deep
for bolt extenders
(order separately)
BKE-6M-60M (M6 metric) or
BKE-4-60M (.2500-20 UNC).
Torque: 11,3-14,7 Nm
(100-130 lb. in.)
130
(5.12)
37
(1.46)
11,7
(0.46)
28,4
(1.12)
69,5
(2.74)
71,6
(2.82)
max.
20,4
(0.80)
Adjust clockwise to increase
pressure setting.
Note: Back pressure in drain
is added to this setting for
internal drain models only.
*External drain port. Plugged for internal drain
* Gage port. External
connection port thread
T
B
B
P
A
T
A
mm (inches)
128
(5.04)
3rd angle
projection
13 (1/2”)
“S” models - SAE-4 O-ring boss port
(0.4375-20 UNF-2B thread).
“B” models - G
1
/
8
(
1
/
8
BSPF)
*External drain and gage port threads
Hex key 4 (5/32”)
See page 38 for interface dimensions.
See page 37 for optional adjustment devices.
