DGMC-2-PT-**
Typical Sectional View
PT BAPT BA
PT BAPT BA
Functional Symbols
DGMC-2-BA-**
DGMC-2-AT-**-BT-** DGMC-2-AB-**-BA-**
20
SystemStak Direct Relief Valves
DGMC-2-1* series
DGMC2-2-1* series
General description
These adjustable direct-acting pressure
relief valves limit the maximum pressure
in the line(s) controlled by the integral
relief valve elements.
Pressure adjustment options are
screw/locknut, handknob and
micrometer type with keylock.
21
Model Code
3 4 5 876 91 2
1
Model Series
Manifold or gasket mounted
Interface
2 – ISO/DIS 4401-02-02
Adjustment type
H – Handknob
K – Micrometer with keylock
W – Screw and locknut
First function
Relief valve
C – Pressure relief (single)
C2 – Dual relief
2
3
4
7
5
6
Pressure adjustment range
B – 2 – 40 bar (29-580 psi)
C – 30 – 100 bar (435-1450 psi)
F – 70 – 160 bar (1000-2300 psi)
G – 120– 250 bar (1740-3600 psi)
Code Pressure
limited in
Discharge
into
Usage
PT
AB
BA
AT
BT
Single
Single or dual
with BA
Single or dual
with BT
P
A
B
A
B
T
Single
Single
B
A
T
T
Second function
Code Pressure
limited in
Discharge
into
Usage
BA
BT
Dual with AB
Dual with AT
B
B
A
T
(Omit for single line models)
Single relief, or first line of dual models
10
Adjustment type
H – Handknob
K – Micrometer with keylock
W – Screw and locknut
Design
Subject to change. Installation
dimensions unchanged for design
numbers 10 thru 19.
9
10
8
Pressure adjustment range
B – 2 – 40 bar (29-580 psi)
C – 30 – 100 bar (435-1450 psi)
F – 70 – 160 bar (1000-2300 psi)
G – 120– 250 bar (1740-3600 psi)
22
Operating Data
Maximum flow rate 30 l/min (7.9 USgpm)
Maximum operating pressure 250 bar (3600 psi)
Hydraulic fluids
Filtration requirements
Refer to appendix
Temperature limits
Mass, approximate
DGMC
DGMC2
0,78 kg (1.7 lb.)
1,21 kg (2.7 lb.)
Mounting attitude No restrictions.
Performance Data
Pressure Override
Typical performance for PT models at
maximum pressure settings with mineral
oil at 21 cSt (102 SUS) and at 50C
(122F).
psi
l/min
USgpm
For other viscosities refer to appendix.
0
1000
2000
3000
Pressure
0 1 2 3 4 5 6 7 7.9
Flow rate
5 101520 25 30
DGMC2-PT-G*-1*
DGMC2-PT-F*-1*
DGMC2-PT-C*-1*
DGMC2-PT-B*-1*
50
0
0
bar
250
200
150
100
23
Installation Dimensions
29,0
(1.14)
58,5 (2.3)
58,5 (2.3)
4 holes thru
5,5 (0.21 dia.)
25,0 (0.99)
DGMC-2-PT-*W-1*
DGMC-2-BT-*W-1*
DGMC-2-BA-*W-1*
Dimensions shown in mm (inches)
3rd angle
projection
4 holes thru
5,5 (0.21 dia.)
50,0 (1.97)
132,5 (5.22) max.
17,5
(0.69)
34,0
(1.34)
36,8
(1.45)
A
B
P
T
Hex locknut
12,7 (1/2”)
Adjuster screw 4,0 (5/32”)
across flats hex. socket
30,0
(1.18)
15,0
(0.59)
3,0
(0.12)
29,0
(1.14)
3,0 (0.12 dia.)
15,5
(0.61)
A
B
P
T
15,5
(0.61)
12,7
(0.5)
35,0
(1.38)
132,5 (5.22) max.
50,0 (1.97)
25,0
(0.99)
17,5
(0.69)
35,0
(1.38)
36,8
(1.45)
12,7
(0.5)
34,0
(1.34)
3,0 (0.12 dia.)
15,0
(0.59)
30,0
(1.18)
3,0 (0.12)
Adjuster screw 4,0 (5/32”
across flats hex. socket
DGMC-2-AT-*W-1*
DGMC-2-AB-*W-1*
Hex locknut
12,7 (1/2”)
24
58,5 (2.3)
DGMC2-2-AB-*W-BA-*W-1*
DGMC2-2-AT-*W-BT-*W-1*
Dimensions shown in mm (inches)
34,0
(1.34)
12,7
(0.5)
29,0
(1.14)
25,0 (0.99)
50,0 (1.97)
265,0 (10.43) max.
58,5 (2.3)
17,5
(0.69)
36,8
(1.45)
35,0
(1.38)
4 holes thru
5,5 (0.21 dia.)
A
B
P
T
Hex locknut
12,7 (1/2”)
across flats
Adjuster screw
4,0 (5/32”)
across flats
hex. socket
15,0
(0.59)
30,0
(1.18)
3,0 (0.12)
3,0 (0.12 dia.)
94,5 (3.72 max.)
25,0
(0.99)
square
20,0
(0.78)
26,0
(1.02)
119,0 (4.68)
W adjuster (Shown)
To adjust valve setting. loosen
locknut and turn adjuster screw
clockwise to increase pressure,
counterclockwise to decrease
pressure. Re-tighten locknut
after completing adjustment.
H adjuster
To adjust valve setting. loosen locknut
and turn knob clockwise to increase
pressure, counterclockwise to
decrease pressure. Re-tighten
locknut after completing adjustment.
K adjuster
Key must be inserted and turned to
allow valve setting to be adjusted.
Turn knob clockwise to increase
pressure, counterclockwise to
decrease pressure. When key is
removed, adjustment mechanism
can be freely turned without
changing valve setting.
Typical Sectional View
25
SystemStak Pilot Operated Relief Valve
DGMC-2-PT-CH-10 EN81
General description
This adjustable direct-acting pressure
relief valve limits the maximum pressure
in the line controlled by the integral relief
valve element.
Pressure adjustment is by handknob or
by remote pilot pressure.
Functional Symbols
PT BA
DGMC-2-PT-CH-10
Model Code
3 4 5 6
1
2
1
Model Series
Manifold or gasket mounted
Interface
2 – ISO/DIS 4401-02-02
Relief valve
C – Pressure relief (single)
2
3
Function
4
Code Pressure
limited in
Discharge
into
Usage
PT SinglePT
Single relief
5
Pressure adjustment range
C – 30 – 100 bar (435-1450 psi)
Adjustment type
H – Handknob
6
Design
Subject to change. Installation
dimensions unchanged for design
numbers 10 thru 19.
7
8
Special feature
EN81 – Remote pilot option
7
8
26
Operating Data
Maximum flow rate 30 l/min (7.9 USgpm)
Maximum operating pressure 250 bar (3600 psi)
Hydraulic fluids
Filtration requirements
Refer to appendix
Temperature limits
Mass, approximate 0,78 kg (1.7 lb.)
Mounting attitude No restrictions.
Performance Data
Typical performance with mineral oil at
21 cSt (102 SUS) and at 50C (122F).
For other viscosities refer to appendix.
psi
l/min
USgpm
0
1000
2000
3000
Pressure
0 1 2 4 5 6 7 7.9
Flow rate
5 15202530
DGMC2-PT-G*-1*
DGMC2-PT-F*-1*
DGMC2-PT-C*-1*
DGMC2-PT-B*-1*
50
0
bar
250
200
150
100
0
3
10
Performance Characteristic
Flow rate versus pressure for number
of turns of adjuster from fully closed position.
Pressure Override
Free flow through check
valve with throttle closed and open.
Installation Dimensions
Single Function
DGMC-2-PT-CH-10 EN81
Dimensions shown
in mm (inches)
Ĭ30,0
(1.18)
H adjuster
To adjust valve setting. loosen locknut
and turn knob clockwise to decrease
flow (increase restriction),
counterclockwise to increase flow
(reduce restriction). Re-tighten locknut
after completing adjustment.
81,5 (3.20)
121,8 (4.79) max.
