Selection Of Gas Valve Assembly - elco VECTRON G 06.1200 DUO-PLUS Betriebsanleitung

Overview

Selection of gas valve assembly

Selection of gas-valve assembly
· The gas-pressure loss indicated in
the table is to be added to the
furnace pressure reading (in mbar).
MBVEF
412
Burner
power
(kW)
G 06.1200
800 18
DUO-PLUS
900 23
950 26
1000 29
1100 35
1200 41
MBVEF
412
Burner
power
(kW)
800 18
900 23
G 06.1600
950 26
DUO-PLUS
1000 29
1100 35
1200 41
1300
1400
1500
1600
MBVEF
Burner
power
(kW)
1100
1150
1200
1250
G 06.2100
1300
DUO-PLUS
1400
1500
1600
1700
1800
1900
2000
2100
Example G 06.2100 DUO-PLUS:
· Specifications:
Type of gas supply: Natural gas E
–
Required burner power: 1600 kW
–
Furnace pressure at rated boiler load: 3 mbar
–
Gas flow pressure at supply station at rated boiler load : 30 mbar
–
Pressure loss in gas pipe at rated boiler load : 1 mbar
–
· Selected gas valve assembly: VGD40
· Testing of selection:
Gas pressure loss (from table):
–
Furnace pressure:
–
Pressure loss in gas pipe :
–
Total
–
Given: Gas flow pressure at supply station 30 mbar > 29 mbar ð Selection VGD40 correct.
–
24
· The gas-flow pressure determined is
to be maintained at the inlet of the
gas-valve assembly. When
determining the gas-flow pressure
required at the transfer point,
remember to take into account the
resistance of the burner feed-conduit
MBVEF VGD20
420 Rp2
Natural gasE Hi = 10,365 kWh/m
Gas pressure loss (from entry of gas valve assembly)
15 15
18 15
20 15
22 16
27 19
32 23
MBVEF VGD20
420 Rp2
Natural gas E Hi = 10,365 kWh/m
Gas pressure loss (from entry of gas valve assembly)
15 15
18 15
20 15
22 16
27 19
32 23
- 37 26
- 43 31
- 50 35
- 57 40
VGD20
420 Rp2
Natural gas E Hi = 10,365 kWh/m
Gas pressure loss (from entry of gas valve assembly)
23 17
25 18
27 20
30 22
32 23
37 27
43 31
49 35
55 40
62 45
69 50
76 55
84 61
25 mbar
3 mbar
1 mbar
29 mbar
05/2005 - Art. Nr. 13 018 114A
VGD40 MBVEF
DN65 420
3
Natural gas LL Hi = 8,83 kWh/m
15 21
15 27
15 30
15 33
15 40
17 48
VGD40 MBVEF
DN65 420
3
Natural gas LL Hi = 8,83 kWh/m
15 21
15 27
15 30
15 33
15 40
17 48
20 56
23 65
26 74
30 85
VGD40 MBVEF
DN65 420
3
Natural gas LL Hi = 8,83 kWh/m
15 33
15 36
15 40
15 43
17 47
19 54
22 62
25 71
28 80
32 89
35 100
39 -
43 -
and its fittings (ball valve, TAS,
additional filter or meter).
· The operating point of the
installation must be inside the typical
authorized graph for the burner.
VGD20 VGD40 MBVEF
Rp2 DN65 412
3
Hi=25,89kWh/m³
15 15
19 15
21 16
23 17
28 21
33 25
VGD20 VGD40 MBVEF
Rp2 DN65 412
3
Hi=25,89kWh/m³
15 15
19 15
21 16
23 17
28 21
33 25
39 29
45 34
52 39
59 44
VGD20 VGD40
Rp2 DN65
3
Hi=25,89kWh/m³
25 15
27 15
29 17
32 18
34 20
40 23
46 26
52 30
59 33
66 37
74 42
82 46
90 51
MBVEF
420
Propane gas
15 15
17 15
19 15
21 15
25 15
30 15
MBVEF
420
Propane gas
15 15
17 15
19 15
21 15
25 15
30 15
- 17
- 20
- 23
- 26
MBVEF
420
Propane gas
15
15
15
15
15
15
15
17
20
22
25
27
30