Typical Sectional Views
DGMDC-2-Y-P*-1* DGMDC-2-X-T*-1*
31
SystemStak Direct Check Valves
DGMDC-2, 1* series
General description
These valves allow free flow in one
direction in the line in which the check
valve element is located, i.e. either line
P or line T. Flow in the opposite
direction is not possible.
Functional Symbols
PT BA
DGMDC-2-Y-P*
PT BA
DGMDC-2-X-T*
3 5 61 2
1
Model Series
Manifold or gasket mounted
Interface
2 – ISO/DIS 4401-02-02
Direction of flow and
check location
Type
DC –Direct check
2
3
4
5
6
Check valve cracking pressure
K – 1 bar (14.5 psi)
M – 2,5 bar (36 psi)
Design
Subject to change. Installation
dimensions unchanged for design
numbers 10 thru 19.
X-T – Free flow away from
actuator, in line T
4
Y-P – Free flow towards
actuator, in line P
Model Code
32
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 0,35 kg (0.77 lb.)
Mounting attitude No restrictions
Performance Data
Typical performance with mineral oil at
21 cSt (102 SUS) and at 50C (122F).
Pressure Drop
Free flow through check valve
DGMDC-2*-*-*K-1*
Pressure drop
psi bar
l/min
0
50
100
150
0
1234
5
6
7
0 5 10 15 20 25 30
Flow rate
For other viscosities refer to appendix
7.9
2
4
6
8
10
0
USgpm
DGMDC-2*-*-*M-1*
Internal Leakage Across
Closed Check Valve
Less than 0,25 cm
3
/min
(0.015 in
3
/min)
at 250 bar (3600 psi).
Installation Dimensions
A
DGMDC-2-Y-P*-1*
DGMDC-2-X-T*-1*
Dimensions shown in mm (inches)
25,0
(0.99)
50,0
(1.97)
17,5
(0.69)
36,8
(1.45)
35,0
(1.38)
4 holes thru
5,5 (0.21 dia.)
B
P
T
30,0
(1.18)
3,0
(0.12)
3,0 (0.12 dia.)
