Riello DB 3 LSM C13 Installation, Use And Maintenance Instructions page 51

Recommended nozzles
Intermediate flow rates may be obtained by choosing the noz-
zle with a nominal flow rate slightly higher than that actually
required.
Complete range of nozzles:
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Bergonzo tipo B5 60°: 250 - 275 - 300 - 325 - 350 - 375
- 400 - 425. We normally recommend 60° angles of pul-
verisation.
Delivery
kg/h pressure pressure
bar
20
300
20
20
375
20
20
425
20
Example
Nominal nozzle delivery: 800 kg/h
Maximum required delivery: 760 kg/h (95%)
Maximum return pressure: 20 bar
Required modulation ratio: 1: 3.8
Minimum delivery: 200 kg/h (25%)
Maximum return pressure: 7 bar
20
Return
kg/h kW
bar
7 100 1200
17.5 257 3000
6.5 148 1750
15.5 305 3600
7.5 68 1950
17.5 365 4300
Tab. A
CHAPTER
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Fluidics tipo N2 50°: 250 - 275 - 300 - 330 - 360 - 400 -
450. We normally recommend 50° angles of pulverisa-
tion.
Delivery
kg/h pressure
bar
24
250
25
24
360
25
24
400
25
Delivery (%)
Delivery pressure: 25 bar
Oil viscosity: 2 °E
5
Preparation for start up
Return
pressure kg/h
bar
9 94
15.5 210
7.5 116
14 260
8.5 153
16.5 365
S9696
D8033
kW
1120
2500
1380
3090
1820
4300
Tab. B
Fig. 23
Fig. 24