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Appendix - Gas supply pressure
C
To know the required gas pressure at test point 1)(Fig.
40), set the maximum output required from the burner
operation, then:
- find the nearest output value in the table for the
burner in question.
- read, on the right (column 1) the socket pressure
1)(Fig. 40);
- add this value to the estimated pressure in the com-
bustion chamber.
Example - RS 68/E BLU:
• Maximum output required: 700 kW
• Natural gas G 20 PCI 9.45 kWh/Sm
• Ring nut 2)(Fig. 16) adjusted as in the diagram of Fig. 17
• Gas pressure at output of 700 kW, taken from table
RS 68/M BLU, column 1
• Pressure in combustion chamber
8.6 + 3.0
pressure required at socket 1)(Fig. 40).
54
GB
RS 200/E BLU
3
=
8.6 mbar
=
3.0 mbar
=
11.6 mbar
kW
1
2
Ø 1"1/2
3970250
1383
9,0
3,1
44,5
1400
9,3
3,2
45,9
1500
10,7
3,7
51,2
1600
12,0
4,2
56,5
1700
13,3
4,7
61,8
1800
14,7
5,3
67,2
1900
16,0
5,9
72,5
2000
18,2
6,5
2100
20,3
7,2
2235
22,5
7,9
2300
24,9
8,6
∆p (mbar)
3
Ø 2"
Ø 2"
DN 65
DN 80
3970257
3970221
3970222
3970223
34,1
11,7
7,9
35,2
12,1
8,2
39,6
13,6
9,0
43,9
15,2
9,8
48,3
16,7
10,7
52,7
18,2
11,5
57,0
19,8
12,4
62,2
21,6
13,5
67,6
23,5
14,6
73,0
25,4
15,8
78,3
27,3
17,0
D3734
Fig. 40
5,1
5,2
5,5
5,8
6,1
6,4
6,9
7,3
7,7
8,2
8,7
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