APPENDIX - COMPONENTS CHARACTERISTICS
25
GAS MULTIBLOC REGULATOR DUNGS MB-DLE 405-407-410-
412-415-420
Specifications
Nominal diameters - Flange with pipe threads as per ISO 7/1
(DIN 2999)
MB 405-407: Rp1/2, 3/4 and their conbinations
MB 410-412: Rp3/4, Rp1, Rp1
1/4
and their combinations
MB 415 B01: Rp1, Rp1
1/4
, Rp1
1/2
, Rp2 and their combinations
MB420 B01: Rp1, Rp1
1/4
, Rp1
1/2
, Rp2 and their combinations
Max. operating pressure
360 mbar
Output pressure range
4 mbar to 20 mbar
Pressure stage
PN1
Media gas of families 1, 2, 3 and other neutral gaseous media
Ambient temperature
-15 °C to +70 °C
Dirt trap Sieve with 0.8 mm mesh width, filter made of random laid
nonwoven fabric microfilter, two-layer, changing the filter is possible
without removing the valve.
Pressure switches
Types GW A5, GW A2, NB A2, ÜB
A2 mountable as per DIN EN 1854.
Pressure regulator
Pressure regulator compensated for
residual pressure, leakproof seal when switched off by means of
valve V1 as per DIN EN 88 Class A. Setpoint spring permanently
installed (no spring exchange possible). A vent line above roof is not
required. Internal pulse tap provided.
Solenooid valve 1
Valve as per DIN EN 161, Class A,
Group 2, fast closing, fast opening
Solenoid valve 2
valve as per DIN EN 161, Class A,
Group 2, fast closing, slow opening
Measuring/ignition gas connection
For G 1/8 as per DIN ISO 228
Burner pressure monitor pBr
Connection downstream of valve V2, pressure switch A2 mountable
on adapter laterally
Closed position signal contact
Closed position signal contact type
K01/1 (DIN tested), mountable on V2
Voltage/frequency
~(AC) 50-60Hz 230 V -15% +10%
Preferred voltages
240VAC, 110-120VAc, 24-28VDC,
48VDC
Electrical connection
Plug connection as per DIN 43 650,
IEC 335, IEC 730 (VDE 0700, VDE
0722) for valves and pressure
switches
Rating power/consumption
upon request
Switch on duration
100% ED
Degree of protection
IP54 as per IEC 529 (EN 60529)
Radio interference
Interference degreeN
Material of gas-conveying parts
housing:
aluminium die casting;
diaphragms, seals:
NBR basis, Silopren (silicone rubber)
solenoid drive:
steel, brass, aluminium.
Installation position
Solenoid
vertically upright or lying horizontally
as well as its intermediate positions
VALVE PROVING SYSTEM DUNGS VPS504
Specifications
Operating pressure
max.500 mbar (50 kPa)
Test volume
4.0 l
Pressure increase by motor pump20 mbar
Nominal voltage
~(AC) 230V -15%...240V +10% DC
24V
Frequency
50 Hz
Rating requirement during pumping timeapprox, 60 VA, in operation
17 VA
Prefuse (provided by the customer)10 A quick-acting fuse or 6.3
slow-blow fuse
Fuse
installed in housing cover, replacea-
ble microfuse 6.3 A slow-blow L 250
V; IEC-127-2/III (DIN 41 662)
Degree of protection
IP40 (IP54 series 04, 05)
Ambient temperature
50 Hz 230 VAC -15°C to +70°C,
others: -15°C to +60°C
Release time
Approx. 10 - 26s, depending on test
volume and input pressure
Sensitivity limit
max. 50 l/h
Switch on duration of control
100%
Max. number of test cycles
20/h
Installation position
upright, horizontal, not inverted
