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.
