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Initial pressure up to 13 bar - Final pressure up to 45 barDelivery: 0.28 to 18 m3/min
Boosters
N Series
Why do we need a booster?
The ability to offer compressed air at various pressures makes itone of the most versatile energy sources available. Special applications require specifically tailored solutions in order toachieve optimum efficiency. Boosters are ideal for applications such as PET container pro-duction for example, where compressed air is required at a higherpressure than the standard works or control air at particularpoints in the manufacturing process. In such instances, it is moreeconomical to use the existing works air and boost it to the higherpressure with a small local compressor, rather than to operatethe whole compressed air system at the higher pressure.Regulating the pressure of a high pressure network to suit low-pressure applications (which account for most air usage) issimply a waste of money.
KAESER offers a comprehensive range of high-performance reciprocating compressors that are able to boost compressed airfrom a screw compressor up to pressures as high as 45 bar(g).These machines are perfectly matched for use with KAESERKOMPRESSOREN’s extensive range of screw compressors andSIGMA PET Air systems.
Rotary Screw Compressor High pressure air receiverAir receiver Booster
Compressed air system with booster up to 45 bar
High pressure refrigeration dryer
Pre-filter
Air tools
Schematic illustration
High pressuremicro-filter
Compressed airnetwork at 45 bar
Further information is also available in our SIGMA PET AIR brochure: P-200
Low pressure networkup to 13 bar
KAESER compressorblockDesigned and manufactured byKAESER, the high-pressure com-pressor blocks are available as two orthree cylinder models and operate atlow speed to ensure years of reliableand efficient service.
Precision cylinderEvery KAESER booster is equippedwith super-precision cylinders, eachfinished by a special process toensure minimum oil consumption andnegligible wear for maximumdurability.
Low temperaturesThree-cylinder models are equippedwith a fan-assisted after-cooler toensure lowest possible compressed airoutlet temperatures. A water-cooledafter-cooler version is available toachieve even lower “Delta T” results.
Premium efficiency motorHigh efficiency CEMEP EFF1 motorsconsume less power for greater outputand are standard throughout the rangeof KAESER compressors. Their lowoperating temperature is an addedadvantage, especially in environmentswith a high ambient temperature.
Select the bestIt is not uncommon for a booster to achieve a maximum pressure of 40 bar, but this once standard figure can now only be considered as second best. KAESER booster systems are in aclass of their own however, as they are the product of decades of experience in compressorsystem design and guarantee continuous delivery at 45 bar.
∆∆TT == 66 -77 KKeellvviinn
Continuous research anddevelopment KAESER KOMPRESSOREN’s strategy ofcontinuous research and developmentensures that every product providesexceptional performance and reliability.KAESER’s wide range of boosters forexample, features the very latestinnovations in reciprocating compressor technology. These include newly designed compressor blocks with oil pumps and a highefficiency cooler, both of which areessential for optimised high pressuresystem operation. In addition, designdetails such as pressurised oil lubrication and intensive cylinder cooling allow up to 100 percent duty cycles.
Effective up to 45 bar
Versatile Range
N 252 G to N 502 G, air-cooled
Low maintenance = Savings
The combination of the innovativeforced lubrication system, precisionmachining and high qualitycomponents ensures minimal maintenance requirement.
Efficient air cooler
Highly efficient and maintenance-free, the cooler on two-cylindercompressors achieves very lowcompressed air discharge temperatures.
Anti-vibration mounts
For vibration-free and quietoperation the machine can bemounted either on rubber feet 1 ...
Gas compression
Upon request, modified versionsof N-series systems are availablefor compression of nitrogen andhelium.
Premium efficiency motor
Eff1-rated motors consume lesspower for greater output and provide outstanding efficiency.
Ensured safety
Oil pressure, cylinder head temperatures and air dischargetemperatures are continuouslymonitored on models N 252 G toN 1401 G. The safety shut-downsequence is initiated via alarmsignals.
Start-Control
The ‘Start Control’ provides reliable booster monitoring andcontrol and also reduces thestarting load.
Manual belt tensioning
Quick and easy adjustmentmaintains optimum power transmission on single- and two-cylinder boosters.
Optimum lubrication
Equipped with an oil pump andoil filters, the new continuous oilfiltration system available forafter-cooler models N 252 G toN 1401 G extends the oil changeinterval to 2000 operating hours.
Automatic belt tensioning
On models N 753 G toN 1401 G constant spring pressure on the motor swing-frame keeps the drive belt at thecorrect tension to ensure virtuallymaintenance-free power transmission.
The N series sets the new standard
Nitrogen
Helium
1
2
N 60 G to N 153 G, air-cooled
N 753 G to N 2001 G, air-cooled or water-cooled after-cooler available
...or on anti-vibration mounts 2.
Investment costsMaintenance Costs
Energy saved withan Eff1 motor
Energy costs
Low demandThe smaller models in this range are best suited toapplications where low volumes of air are neededat up to 40 bar pressure. These compressors areequipped with one- or two-cylinder compressorblocks and are driven by high efficiency motorswith up to 4 kW capacity. The quality of theseunits is second to none as all compressor blocksare designed, manufactured and assembled byKAESER.
Medium to large demandWhen greater volumes of air are needed at pressures upto 45 bar then the larger of the KAESER booster modelsare the natural choice. The core of these “power houses”is the high-precision, two- or three-cylinder compressorblock with specially finished high quality cylinders andpremium efficiency Eff1 motors providing capacities upto 45 kW. The manual (two-cylinder models) or automatic drive belt tensioning systems (three-cylindermodels) ensure constant efficient power transmission forreliable and economic operation.
According to application, air-cooled or water-cooledafter-cooler versions are available (N 253 G – N 502only air-cooled, from N 753 G air- or water-cooled after-cooler).
Air-cooled versions are equipped with a separate fan-assisted after-cooler to keep the temperature differentialbetween the inlet and compressed air (∆T) within closetolerances.
To ensure optimum cooling performance with a ∆T valueof only approximately 5 K even at high ambient tem-peratures, models N 753 to N 2001 can be equippedwith a water-cooled compressed air after-cooler.
Technical Specifications - Boosters
DimensionsWidth (W), Depth (D) and Height (H) - see adjacent table fordetails.
o Standard o Optional — Not available *) Effective delivery related to atmospheric inlet conditions at final pressure - Power supply: Compressor 400 V, 3 Ph, 50 Hz, Solenoid valves 230 V, 1 Ph, 50 Hz, standard from N 253-G with idle control and oil level monitoring, optional on N 60-G and N 153-G with switch cabinet.
5
7.5
10
13
5
5
7.5
7.5
10
10
13
13
5
7.5
7.5
10
10
13
13
5
7.5
7.5
10
10
13
13
5
5
7.5
7.5
10
10
10
13
13
25
35
35
35
15
25
15
35
15
40
20
40
25
20
35
20
40
20
45
25
25
35
25
40
25
45
15
25
15
35
15
35
40
35
45
0.28
0.39
0.52
0.69
0.69
0.46
1.08
0.68
1.40
0.93
1.80
1.3
1.05
1.57
1.41
2.41
2.05
3.04
2.72
1.55
2.50
2.34
3.54
3.20
4.91
4.19
2.3
2.02
3.52
2.92
4.73
4.11
3.95
5.4
5.09
60
60
60
60
150
150
150
150
150
150
150
150
250
250
250
250
250
250
250
350
350
350
350
350
350
350
500
500
500
500
500
500
500
500
500
2.2
2.2
2.2
2.2
2.2
4
2.2
4
2.2
4
4
4
7.5
7.5
11
7.5
11
7.5
11
11
11
15
11
15
11
15
11
15
11
15
11
15
18.5
15
18.5
N 60 G to N 153 G, air-cooled
N 253 G to N 502 G, air-cooled
N 753 G to N 2001 G, water-cooled
0.36
0.51
0.66
0.84
0.91
1.28
1.66
2.12
1.54
2.18
2.82
3.59
2.19
3.11
4.02
5.12
1300
1140
940
870
1300
1300
1140
1030
1100
920
870
870
2.94
4.16
5.38
6.85
Model
Inlet pressurebar
Final pressure
bar
Delivery
m3/min
Displacementl/min
Rated motorpower
kW
Compressorspeedrpm
withoutenclosuredB(A)
Theoretical inletvolumem3/min
No. ofcylinders
Cooler type
Air-cooled
Water-cooled
Air-cooled withseparate fan
Max. dimensionsAir-cooled model
W x D x H mm
Weightmax.
kg
D
D
D
5
7.5
10
13
5
7.5
10
13
25
35
45
45
25
35
45
45
4.73
6.93
7.65
9.76
6.82
9.26
9.63
12.12
1040
1040
880
830
1490
1310
1080
1000
22
30
30
30
30
37
37
37
6.21
8.80
9.64
11.60
8.95
11.11
11.86
13.97
7.5
10
10
13
30
35
45
45
10.5
14.2
11.7
14.3
1490
1490
1310
1180
45
45
45
45
12.6
16.4
14.4
16.5
5
5
7.5
10
10
25
20
20
12.1
9
13.4
17.9
2290
1910
1810
1810
30
37
37
37
13.7
11.5
13.4
19.9
1300
1300
1100
1040
N 660-GG
N 1153-GG
N 2253-GG
N 3351-GG
N 5502-GG
N 7753-GG
N 11100-GG
N 11400-GG
N 22001-GG
1040
660
1120
910
970
74
74
76
77
78
80
80
80
81
80
82
82
85
84
64
64
66
67
68
70
70
70
71
70
72
72
75
74
o
o
o
o
o
o
—
—
—
—
—
—
—
—
o
o
o
o
880 x 390 x 540
1030 x 640 x 620
1400 x 710 x 800
1620 x 1280 x 990
1410 x 730 x 820
1620 x 1280 x 990
1520 x 870 x 1000
1940 x 1650 x 1130
1560 x 870 x 1000
1940 x 1650 x 1130
1600 x 1040 x 1030
2420 x 1600 x 1350
2790 x 1010 x 1040
3130 x 1600 x 1350
1990 x 990 x 1020
2420 x 1600 x 1350
2790 x 1010 x 1040
3130 x 1600 x 1350
1990 x 990 x 1020
2420 x 1600 x 1350
2790 x 1010 x 1040
3130 x 1600 x 1350
1990 x 990 x 1020
2420 x 1600 x 1350
2790 x 1010 x 1040
3130 x 1600 x 1350
1990 x 990 x 1020
2420 x 1600 x 1350
65
100
200
390
285
475
390
660
460
730
740
1100
1080
1600
900
1260
1100
1620
940
1300
1140
1660
980
1340
1130
1650
970
1330
1
2
2
2
2
3
3
3
3
—
—
—
—
—
o
o
o
o The SIGMA PET AIR system is a complete turnkey package.See brochure P-200 for further details
H
W
H
W
W
H
with enclosuredB(A)
Sound pressure level
P-4
80ED
AUS.
5/0
6 S
peci
ficat
ions
are
sub
ject
to
chan
ge w
ithou
t no
tice
Different fields of application require different grades of air treatment
Oil vapour content ≤ 0.01 mg/m3, particle retention > 0.01 µm
Oil vapour content ≤ 5 mg/m3, particle retention > 5 µm
Oil vapour content ≤ 25 mg/m3, untreated
Sterile blowing air
Choose the required grade of treatment according to your field of application:
PET painting systems
Control air
Air treatment using a refrigeration dryer (+3 °C pressure dewpoint)
Solids Oil BacteriaWater
A
B
C
1
1
4
4
41
1
1
1<
<
<
Oil vapour content ≤ 0.003 mg/m3, particle retention > 0.01 µm, sterile, odourless and taste-free
Oil vapour content ≤ 0.003 mg/m3, particle retention > 0.01 µm
Oil vapour content ≤ 0.001 mg/m3, particle retention > 0.01 µm
A
B
C
D
E
F
Simple blowing air
Coarse filtration
No quality requirements
D
E
F
1
6
4
4
4-78
2
4
5
<
Examples: selection of treatment classes to ISO 8573-1
Explanation:
N=Booster
ED=ECO DRAINElectronic level-controlled condensate drain
HPRD=High pressure refrigeration dryer
FE=Micro-filter 0.01 ppmSeparates aerosol oils and solid particles >0.01 µm,oil content ≤0.01 mg/m3
FF=Micro-filter 0.001 ppmSeparates aerosol oils and solid particles >0.01 µm, oilcontent ≤0.001 mg/m3
FG=Activated carbon filterFor adsorption of oil vapours, oil vapour content≤0.003 mg/m3
AMCS= Air-main charging systemTo ensure constant system pressure
HPDC= High Pressure Decompression Chamber
Aquamat= Condensate treatment system
Contaminants:+ Solids -
+ Water/condensate -
+ Oil -
+ Bacteria -
Clas
s
<0.
1
Pressure dewpoint
(x=liquid water in mg/m3 )
–
–
–
–
–
0.1<
d<0.
5
100
100000
–
–
–
0.5<
d<1.0
1
1000
10000
–
–
–
–
–
–
1.0<
d<5.0
0
10
500
1000
20000
µm
–
–
–
–
–
< 5
< 40
–
–
mg/
m3
–
–
–
–
–
< 5
< 10
–
–
mg/m3
<0.01
<0.1
<1.0
<5.0
–
–
–
–
–
<-70 °C
<-40 °C
<-20 °C
<+ 3 °C
<+ 7 °C
<+ 10 °C
x <0.5
0.5<x < 5.0
5.0<x <10.0
0
1
2
3
4
5
6
7
8
9
Degree of filtration:
Solid particlesMax. no. of particles per m3 with size d (µm)
ISO
8573
-1 HumidityOverall
oil content
as specified by user
FG
FF
FE
EDHPDC
Air receiver
N
Aquamat
HPRD KA
ES
ER
AMCS
AMCS
AMCS
AMCS
KA
ES
ER
KA
ES
ER
KA
ES
ER
FST
KA
ES
ER
FBHPRDFilters
Air receiver
Installation for heavily fluctuating air demand
Compressed air supply from the low-pressure network; required compressed air quality at booster inlet to ISO 8573-1, otherwise a centrifugal water separator or air receiver with FC pre-filter necessary (particle separation >1 µm, remaining oil <1 mg/m3)
Moisture dependent on pressure dew point, low-pressure network and the booster compression ratio
Solids OilWater
2 4 31
2
1
2
KAESER KOMPRESSOREN GmbHP.O. Box 2143 – 96410 Coburg – GERMANY – Tel: +49 9561 640-0 – Fax: +49 9561 640130www.kaeser.com – e-mail: [email protected]