Robuschi RBS - Page 23

23
2 PERFORMANCE LIMITS AND WORKING CONDITIONS
2.1 Operating environment and conveyed gas
The blower is suitable to operate only in dust free environment, with no-explosive or corrosive atmosphere
and to convey only atmospheric Air or Nitrogen.
Warning : The blower is not suitable to convey explosive, toxic or dangerous gases.
Warning : The suction of liquids damages the blower.
2.2 Performance limits
RPM
MAX
P1
(mbar)
P2-P1
(mbar)
P2/P1 T1
(°C)
T2
(°C)
T2-T1
(°C)
Size
/F/V/SP /H
MIN
(1)
MAX MIN MAX MAX MAX MIN MAX MAX
15 900 110
25
5000 3800 1200 1100 200
700
2 50 -25 130
90
35 1000 130
45 1000 110
46
5000 3800 1000 1100 200
700
2 50 -25 150
90
55 1000 130
65 100 110
66
4800 2300 900 1100 200
700
2 50 -25 150
90
75 1000 130
85 1000 110
86
3800 2500 700 1100 200
700
2 50 -25
150
(2)
90
95 1000 130
105 1000 110
106
3000 2400 550 1100 200
700
2 50 -25
150
(2)
90
115 1000 130
125 1000 110
126
2400 1800 450 1100 200
700
2 50 -25
150
(2)
90
135 1000 130
145 1000 110
155
1800 1500 350 1100 200
700
2 50 -25
150
(2)
90
165 1000 130
175
1500 - 300 1100 200
1000
2 50 -25
150
(2)
110
205 1000 110
225
1200 - 250 1100 200
700
2 50 -25
150
(2)
90
(1) Resonance phenomena in the plant are possible when the rotation speed is close to the minimum one
(2) 160 °C for blowers /R-V
2.3 Flow adjustment
Change transmission ratio
Change frequency of the motor
Use a two-speed motor
Discharge excess flow and silence it
Warning : Do not use relief valve to discharge excess flow
Warning : Do not recirculate flow to blower inlet.
Warning : Do not adjust flow by throttling inlet or outlet pipe.
2.4 Noise level
Noise level of the blower is indicated at page 4 as Sound Pressure Level according to ISO 3476 at 1m
distance from the blower and in free air (tolerance +/- 2dB(A))
Warning : For high compression ratio and for high speed of rotation noise level of blower can
be higher than 85 dB(A).