Product description
2.2
Function description compressor
Page 16
BOGE Operating instructions for C 15 series screw compressors
Technical data C 15 / C 15 F, part 2
2.2 Function description compressor
Function principle of the
air end
The air end operates according to the displacement principle. In the housing,
the main and secondary screws are driven by means of an electric motor and
V-belts.
Both screws have screw-shaped profiles, intermeshing without contact. To-
gether with the housing wall, these screws form chambers which gradually
reduce in size, seen in air flow direction.
Type
C 15
C 15 F
Oil filling quantity
Total oil filling quantity
[gallon]
1.6
1.6
Oil topping up quantity
between min. + max.
[gallon]
0.3
0.3
Intake air temperature
– min.
[°F]
+ 41
+ 41
– max.
[°F]
+ 113
+ 113
Air cooling
Cooling air requirement
– free-standing installation
[cfm]
2180
2180
– with supply and exhaust air duct
[cfm]
1002
1002
– free ventilator pressure
[Pa]
60
60
– free ventilator pressure
[inch Hg]
0.203
0.203
Operating pressure values
1
)
(factory settings)
– p
max
= 100 psig: switch-off pressure p
max
[psig]
100
100
switch-on pressure p
min
[psig]
85
94
– p
max
= 115 psig: switch-off pressure p
max
[psig]
115
115
switch-on pressure p
min
[psig]
100
109
– p
max
= 150 psig: switch-off pressure p
max
[psig]
150
150
switch-on pressure p
min
[psig]
135
144
– p
max
= 190 psig: switch-off pressure p
max
[psig]
190
190
switch-on pressure p
min
[psig]
175
184
Safety valve
Activation pressure at:
– p
max
= 100 psig
[psig]
160
160
– p
max
= 115 psig
[psig]
160
160
– p
max
= 150 psig
[psig]
160
160
– p
max
= 190 psig
[psig]
203
203
1)
For fixed compressors with other operating pressures p
min
= p
max
– 15 psig, for frequency controlled compressors with other operating pressures p
min
= p
max
– 6 psig.
