Burner and nozzle specifications
Table 1
Burner
Diameter
(mm)
Rapid (R)
157
Semi Rapid (S)
132
Auxiliary (A)
110
Supply pressures
* At 15°C and 1013,25 mbar-dry gas
Natural
S
S
R
A
PK 644 D GH E X /HA
Thermal Power
By-pass
kW (p.c.s.*)
1/100
Nomin. Reduc.
(mm)
3.00
1.00
73
1.90
0.80
66
1.00
0.50
54
Nominal (mbar)
Minimum (mbar)
Maximum (mbar)
P.C.S. = 37.78 MJ/m³
S
R
A
PK 755 D GH X/HA
PKQ 755 D GH /HA
PK 755D GH E X /HA
Natural Gas
Adjusting the burner's
(G20 / 20 mbar)
primary air
Nozzle
Flow*
1/100
l/h
(mm)
(G20)
125
286
100
157
72
95
20
17
25
S
A
(mm)
4.7
2.6
2.0
GB
21