Suflante KAESER – Soluții de joasă presiune KAESER KOMPRESSOREN LOW PRESSURE
KAESER Blowers
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solutions
Rotary Lobe and Rotary Screw Blowers
Flow rate 0.6 to 160 m³/min
Pressure differential: Gauge pressure up to 1100 mbar, Vacuum up to 550 mbar
Magnetic Bearing Turbo Blowers
Flow rate up to 267 m³/min, Pressure differential 0.3 to 1.3 bar
www.kaeser.com
KAESER blowers
The world-renowned compressor and blower manufacturer
Established by Carl Kaeser Sr as a machine workshop in 1919, KAESER started on the road to becoming one of the world’s
leading compressed air systems providers when the first reciprocating compressor left the Coburg production line in 1948.
The final breakthrough came in the early 1970s with the development of the rotary screw compressor featuring the energysaving SIGMA PROFILE.
Gera plant
In 1991, KAESER acquired the “Geraer Kompressorenwerke”, a company with a proud heritage forged over more
than 100 years of compressor and blower manufacture.
Production of KAESER’s newly developed OMEGA rotary
lobe blowers
began at the plant in Thuringia in 1993 and
today these highly efficient systems are exported, together
with all necessary accessories and equipment, to every
2
corner of the globe. Covering an area of over 60,000 m²,
the Gera facility currently employs approximately 300
people producing KAESER’s extensive range of rotary
lobe blowers, rotary screw blowers and compressed air
refrigeration dryers. All companies in the international
KAESER group are linked by the very latest information
and network technology.
Contents
How a KAESER rotary lobe blower works...................................................................................................................... 04
How a KAESER rotary screw blower works................................................................................................................... 05
Rotary screw blowers with the SIGMA PROFILE........................................................................................................... 06
-07
CBS – HBS series, SFC/STC version – Dependable and efficient................................................................................. 08-09
Rotary lobe blowers with the OMEGA PROFILE............................................................................................................ 10-11
BBC – FBC series, OFC/STC version: Optimised complete blower systems................................................................. 12-13
SIGMA CONTROL 2 blower controller........................................................................................................................... 14-15
Rotary lobe blower packages: BBC – HBC series........................................................................................................... 16-17
Premium blowers: HB – PI series................................................................................................................................... 18-19
Magnetic bearing turbo blowers....................
................................................................................................................. 20-21
Complete solutions from a renowned systems provider................................................................................................. 22-23
Accessories.................................................................................................................................................................... 24-25
Special versions............................................................................................................................................................. 26-27
Advanced manufacture................................................................................................................................................... 28-29
Technical specifications.................................................................................................................................................. 30-31
Fields of a
pplication
Food processing
General industry
Beverages industry
Chemicals industry
Mining
Water management
Transportation
Burner air supply
Bulk materials conveying
Marine applications
Efficient and oil-free gas transportation, pneumatic conveying of bulk materials, drinking and wastewater treatment (filter
cleaning and clarification tank aeration), liquid homogenisation and forced air systems for combustion equipment; the
possibilities are almost endless – KAESER blowers are as versatile and varied as the applications for which they are used.
3
How a KAESER rotary lobe blower works
The pressure build-up process – the images show a cross-sectional view through the flow chamber of the KAESER OMEGA
rotary lobe blower block.
Intake
Pressure build-up
Oil-free, isochoric compression process
As the intake air passes through the flow chamber inside
the rotary lobe blower, its volume remains constant (isochoric process).
Actual compression takes place outside the blower blo
ck,
with the accumulation of the air mass taking place during
the subsequent process.
This “adaptive” compression always produces only as
much pressure as is needed by the process in question.
This makes rotary lobe blowers particularly well suited to
applications where they spend a relatively high proportion
of their time at Idle (such as pneumatic conveying) and/or
applications with heavily fluctuating pressure.
Air expelled
Flow chamber completely evacuated
The numbers correspond to the points in the pressurevolume diagram.
1)
Intake and capture of atmospheric air (left rotor).
2)
Air is conveyed towards the pressure side; pressure
increase commences at the 120° angle of rotation
due to the prior influx of air that has already been
compressed.
3)
Compression in the flow chamber ceases; discharge
commences.
4)
Conveyed air mass is discharged into the process.
Pressure (p)
Volume (V)
■ Thermodynamic energy consumption
The pressure-volume diagram (PV
diagram) illus
trates the compression
work / energy expended for compression
by means of the area depicted in blue
between points 1 to 4.
Image: OMEGA block
4
How a KAESER rotary screw blower works
The pressure build-up process – the images show cross-sectional views of the enclosed air volume within the KAESER
SIGMA-B rotary screw blower airend, seen from the pressure side of the rotor pair.
Intake air is captured
Volume is reduced
Oil-free, isentropic compression process
As the intake air passes through the flow chamber inside
the rotary screw blower, its entropy remains largely constant (isentropic process).
Actual compression takes place inside the airend: the
volume of air is continuously reduced until the moment of
discharge and is pushed out under pressure – since less
effort is required for compression of the same air volume,
energy consumption is reduced. Rotary screw blowers
are the ideal solution for applications with more or less
constant pressure and high running performance r
equire-
Expelled to pressure side
Flow chamber completely evacuated
ments, such as clarification tank aeration at wastewater
treatment plants, flotation, etc.
The numbers correspond to the points in the pressurevolume diagram.
1)
Intake and capture of atmospheric air.
2)
Air conveyed towards the pressure side for discharge.
3)
Pressure increases due to volume reduction.
4)
Compressed air is expelled.
Pressure (p)
Volume (V)
■ Thermodynamic energy consumption
■ Energy savings
The pressure-volume diagram (PV
diagram) illustrates the compression
work / energy expended for compression
by means of the area depicted in blue
between points 1 to 4.
Image: SIGMA blower airend
The orange area depicts the potential
energy savings when a rotary screw blower
is used in comparison to a conventional
rotary lobe blower (roots blower), provided
no over-compression occurs.
5
6
CBS, DBS and EBS drive concept
FBS belt drive – refined to perfection
In CBS, DBS and EBS series rot
ary screw blowers, power
is transferred from the motor to the blower airend via integrated gearing. This has proven to be the best solution for
the prevailing speeds in this performance and size class
when it comes to efficiency, reliability and durability.
The pivoting motor base with tensioning spring ensures
precision belt tensioning, irrespective of motor weight,
thereby providing optimum levels of transmission efficiency at all times. As a result of the company’s decades
of experience in compressor design and engineering,
this approach to power transmission has been refined to
perfection.
Rotary screw blowers –
with the efficient SIGMA PROFILE
Developed at the company’s in-house Research and Development Centre, KAESER
rotary screw blower airends with their world-renowned SIGMA PROFILE rotors are up
to 35% more efficient than conventional compressor designs.
They also benefit from a particularly broad control range and virtually constant specific
package input power.
In ad
dition to efficiency, durability was also an essential development objective. The
use of high-tech bearings and the fact that no ancillary equipment is required serves to
minimise energy consumption whilst also enhancing reliability.
Technical specifications:
CBS, DBS, EBS, FBS, HBS series
Usable flow rate:
4.5 to 160 m³/min
Pressure differential:
- Gauge pressure up to 1100 mbar
- Vacuum up to 550 mbar
Guaranteed performance specifications
1217:2009
To ensure that the projected savings are actually achieved
during operation, KAESER quotes effective overall power
consumption figures, as well as the usable flow rate, in
accordance with the stringent tolerances of ISO 1217,
Annexe C or E (as applicable).
Dependable seals
Durable bearings
Field-proven in KAESER rotary screw compressors, the
sliding ring seal for the rotary transmission drive shaft
lead-through on the blower airend is maintenance-free
and provides a dependable sealing, even in hot and dusty
environments.
Four hea
vy-duty roller bearings absorb 100% of the radial
forces exerted on the cylinders, guaranteeing a long service life for the rotary screw airend. The rolling elements
are encased in high-tech cages for optimum lubrication
at all speeds. No additional oil pressure lubrication is
required.
7
Rotary screw blowers
– CBS, DBS, EBS, FBS
& HBS, SFC/STC
version
KAESER rotary screw blowers are user-friendly turnkey
systems, delivered ready for immediate operation. All that
is needed is to connect them to a power supply and the
air network; the laborious processes of oil-filling, drive belt
installation, motor adjustment, procurement of a suitable
frequency converter, programming, cabling in accordance
with EMC regulations, drawing wiring diagrams, arranging
CE and EMC-certification, etc. are thankfully consigned to
the past.
Procuring complete, certified machines from systems
manufacturers ultimately saves you both time and money,
whilst guaranteeing many years of reliable operation.
SFC v
ersion: Variable speed with frequency converter
STC version: With Y-Δ-Starter
0.014bar
0.014bar
107.8m /min
Run: 2h
8
66% 0.482bar
15 C 3003rpm 68 C
Maintenance in: 2997h
SIGMA CONTROL 2 controller
Seamless system monitoring
The SIGMA CONTROL 2 ensures efficient blower control
and system monitoring at all times. Numerous interfaces
enable rapid communication with control centres via data
bus, whilst the SD card slot ensures data storage and
updates are a breeze. Various operating modes are
selectable on SFC/OFC machines.
Sensors for oil level and temperature monitoring are integrated into the blower airend. The oil chamber is designed
to ensure dependable oil level measurement in all operating phases.
Specific pack
age input powe
r (kW/m³/min)
Conventional sp
eed control
Efficient KAES
ER
variable speed
control
Delivery volum
e (m³/min)
Cool inlet air
Optimised specific package input power
Process air and cooling air for the motor are drawn in
separately from o
utside the housing. This boosts efficiency and leads to a higher usable air mass flow rate for the
same power consumption. The blowers can operate at full
capacity in ambient temperatures up to +45 °C.
The moderate maximum speed, an extra-dense screw
profile and near constant specific package input power
across a broad, variable-speed control range all combine
to achieve significant energy savings across the entire
operating curve.
9
10
Durable OMEGA blower block
Durable bearings
The OMEGA blower block delivers pressures up to 1000
mbar(g), block discharge temperatures up to 160 °C, a
broad control range with speed-controlled operation, Q 2.5
rotor balancing for quieter operation, extended service life
and minimal maintenance requirements.
Heavy-duty cylinder roller bearings absorb 100% of the
continuously changing radial gas forces. As a result, they
avoid the springing effect of self-aligning bearings and last
up to ten times longer with the same load.
Rotary lobe blowers
–
Air at the touch of a
button
The special OMEGA Profile featured on KAESER’s
three-lobe rotary lobe blowers makes these machines true
masters of energy efficiency. The long-term dependability
and durability of these units are legendary.
These qualities can be attributed to design features such
as the use of straight-cut timing gears, heavy-duty cylinder
roller bearings and precisely balanced rotors.
Technical specifications for the full,
connection-ready version:
Usable flow rate:
1.5 to 72 m³/min
Pressure differential:
- Gauge pressure up to 1000 mbar
- Vacuum up to 500 mbar
Precision manufacture/synchronisation
Stable rotors
KAESER blower blocks feature high-precision, 5f 21
quality straight-cut timing gears with minimal flank clearance, which play a major role in contributing to the block’s
outstanding volumetric efficiency. Since the straight-cut
gearing is not subjected to continuously changing axial gas
forces, heavy-duty cylinder roller bearings can be used.
An ext
remely high rotor balancing quality of Q 2.5, combined with the rotors’ single-piece design including the
shaft ends, ensures a vibration-free, low-noise operation.
Rotor tips with integrated sealing strips make the blower block more resistant to dust particulates and thermal
stress.
11
Complete, turnkey rotary lobe blowers
BBC-FBC series, OFC/STC version
KAESER’s turnkey COMPACT series blowers with OMEGA PROFILE rotors provide more than just a dependable and energyefficient performance.
Delivered ready for connection, complete with all sensors, star-delta starter (or frequency converter) and CE/EMC labelling,
they significantly reduce the work and costs required for planning, installation, certification, documentation and commissioning.
12
START CONTROL (STC)
Variable speed control
The version with integrated Y-Δ-starter operates at a
constant speed and is equipped with a premium contactor,
overcurrent relay and phase sequence monitoring. A SIGMA CONTROL 2 controller and d
ependable emergency
stop system complete the package.
With OMEGA FREQUENCY CONTROL (OFC), the
frequency converter uses speed control in order to adjust
the delivery volume of the blower to match the required
air demand. Everything is delivered ready for immediate
operation, since all programming and parametrisation is
carried out at the factory.
Plug-and-play
EMC-tested and certified complete system
Turnkey blowers not only come complete with all necessary sensors, STC/OFC, SIGMA CONTROL 2 and
emergency stop switch, but are also ready-filled with oil
and fully certified. This significantly reduces the work and
costs required for planning, installation, documentation
and commissioning.
To ensure seamless integration into any operating environment, the electromagnetic compatibility (EMC) of all
components and of the complete machine has been tested
and certified in accordance with all applicable regulations.
13
Automatic
SAM 4.0 / 4
Compressors
Pressure curve
C1 - ASD 60 SFC
1
Pressure curve
2
3
7.18 bar
4
Current values
30.10.2020
09:12:47
Pressure performance
Required pressure
Pressure range limit
Volumetric flow rate
99.56 bar
7.00 bar
8.40 bar
11.06 bar
C2 - ASK 40
8.5
C3 - BSD 75
8.0
EN
5
Status
History
Network pressure
7.18 bar
Messages
Monitoring
12.0
11.0
Energy & Costs
9.0
7.5
m³/min
bar
10.0
C4 - BSD 75
8.0
Maintenance
Control
7.0
7.0
Time Control
6.0
6.5
Initial Start-up
C1
Configuration
C2
C3
C14
08:45
08:55
08:55
09:00
09:05
09:10
Time
Status - Overview
i
Contact
Digital output device, e.g. laptop
Control centre
Control centre
KAESER CONNECT
Automatic
SAM 4.0 / 4
Compressors
Pressure curve
C1 - ASD 60 SFC
1
Pressure curve
2
3
7.18 bar
4
Current values
30.10.2020
09:12:47
Pressure performance
Required pressure
Pressure range limit
Volumetric flow rate
7.18 bar
99.56 bar
7.00 bar
8.40 bar
11.06 bar
C2 - ASK 40
8.5
C3 - BSD 75
8.0
EN
5
Status
History
Network
pressure
Messages
Monitoring
12.0
11.0
Energy & Costs
9.0
7.5
m³/min
bar
10.0
C4 - BSD 75
8.0
Communications module (e.g. Modbus TCP)
Maintenance
Control
7.0
7.0
Time Control
6.0
6.5
Initial Start-up
C1
Configuration
C2
C3
C14
08:45
08:55
08:55
09:00
09:05
Status - Overview
09:10
Time
Contact
i
SIGMA AIR MANAGER 4.0
KAESER SIGMA NETWORK
Blower station
Controller:
SIGMA CONTROL 2
Industrie 4.0 – Join the network
With the SIGMA CONTROL 2 blower controller and SIGMA AIR MANAGER 4.0 master controller,
all blower stations can be integrated seamlessly into Industrie 4.0 environments, thereby allowing
continuous system optimisation through analysis of operating data and providing demand-oriented
preventative maintenance and servicing (Predictive Maintenance) via remote diagnostics (Condition
Monitoring).
14
Intelligence inside:
SIGMA CONTROL 2 blower controller
®
Based on industrial PC technology, the SIGMA CONTROL 2 internal blower controller uses a
range of sensors to monitor
and control all relevant machine and process parameters for a reliable and economical operation. The availability of remote
monitoring and control serves to optimise blower availability and efficiency even further.
A variety of communications modules enable blower systems equipped with SIGMA CONTROL 2 to connect to master control systems such as the SIGMA AIR MANAGER 4.0 and/or other centralised control systems via data bus.
0.014bar
0.014bar
107.8m /min
Run: 2h
66% 0.482bar
15 C 3003rpm 68 C
Maintenance in: 2997h
The control centre
Stay connected
The control unit features an easy-to-read display and durable input keys, whilst a clear menu structure with 30 selectable languages enables universal operation. A variety
of operating modes are selectable on SFC/OFC machines.
The Ethernet interface (10/100 Mbit/sec) allows users
to call up operating parameters on any Internet browser
via the integrated web server. Optional communication
modules: Profibus
DP, Modbus RTU and /TCP, Profinet
IO and EtherNet/IP.
SIGMA CONTROL 2
1-default
read => write
Logout
Contact/Service
Graphs
Time: 02/10/2014 04:11:40 pm
p1 / bar
t1 / °C
1.0
28
0.5
26
0.0
24
p1: 0.00 bar
t1: 23.3 °C
System status
Graphs
Messages
-0.5
22
IO display
-1.0
User Management
20
3:50 pm
p2 / bar
4:00 pm
4:10 pm
t2 / °C
1.0
Settings
0.8
Backup
90
p2: 0.40 bar
85
t2: 75.4 °C
80
0.6
75
70
0.4
65
0.2
60
0.0
3:50 pm
4:00 pm
55
4:10 pm
f / Hz
Load
60
50
Idle
Operating state: Load
f: 59 Hz
40
Off
30
3:50 pm
|<
<
<>
>
>|
Start:
02/10/2014
4:00 pm
4:10 pm
03:41:58 pm
End:
02/10/2014
04:17:28 pm
KAESER CONNECT
Updates and data storage
Simply connect a PC and the SIGMA CONTROL 2 with
the LAN, then enter the SC2 address and password in
the browser. Now you can view machine status, operating
data, warning messages and graphical representations of
pressure, temperature and speed in real time.
Software updates and operatin
g parameters can quickly
be uploaded and transferred via the convenient SD card
slot, thereby keeping service costs to an absolute minimum. Key operating data can also be stored on the SD
card.
15
BBC–HBC series
Usable flow rate:
0.59 to 93 m³/min
Differential pressure:
- Gauge pressure up to 1000 mbar
- Vacuum up to 500 mbar
16
Rotary lobe blower packages for integration into
existing systems
Efficient, quiet, durable and versatile – whether used to convey bulk materials or as anti-heeling dampers on a container
ship, KAESER blower packages are renowned worldwide for their dependable performance, no matter what the application
may be. Small wonder, then, that they are so highly regarded by operators in every industry across the globe.
IE3 energy-saving motors
Sensors
All KAESER blower packages are equipped with dependable, Premium Efficiency IE3 drive motors (IP55 protection,
Insulation Class F). Their exceptional efficiency boosts the
energy performance of the whole sys
tem.
A wide range of sensors and switches for monitoring
pressure, temperature, speed, oil level and filters ensures
dependable operation of the blower, whilst allowing remote
monitoring and visualisation of the operating status.
Minimal pulsations and quiet operation
Automatic belt tensioning
As pulsations from the conveying air can cause noise
in the connected pipework in addition to noise from the
machine itself, the targeted soundproofing measures on
KAESER blowers are designed to minimise both types
of sound emissions. Highly effective discharge silencers
cover a wide frequency range so as to mitigate noise from
pulsations in the conveying air.
The pivoting motor base with tensioning spring ensures
precision belt tensioning irrespective of motor weight,
thereby providing optimum levels of transmission efficiency
at all times. Consequently, this system reduces both maintenance and energy costs.
17
Premium blowers:
HB-PI series – large and versatile
KAESER’s HB-PI series
rotary lobe blowers are the perfect choice for applications that
require large air delivery volumes and maximum availability, such as in large water
treatment plants or power stations.
Flexible, durable and dependable, in combination with the rapid-response KAESER
Service they guarantee uninterrupted operation at all times.
Technical specifications:
HB-PI series
Usable flow rate:
55 to 160 m³/min
Pressure differential:
- Gauge pressure up to 1000 mbar
- Vacuum up to 500 mbar
IE3 energy-saving motors
All KAESER blower packages are equipped with dependable, Premium Efficiency IE3 drive motors (IP55 protection, Insulation Class F). Medium-voltage motors can also
be specified optionally.
18
Flexible connection to external switching
technology
HB-PI series packages are available prepared for connection to user-end switching technology on a project-specific
basis, whether it be for operation at a fixed speed or via
frequency converter. Medium-voltage versions are available upon request
.
Dependable belt drive
Clever cooling air flow
The pivoting motor base with tensioning spring ensures
precision belt tensioning, thereby providing optimum levels
of transmission efficiency at all times. This reduces wear
whilst boosting reliability.
Outstanding cooling performance is assured by the fact
that the drive motor is equipped with a dedicated cooling
air intake and ambient air from outside the sound enclosure is used as process air. This results in maximum
efficiency, even under heavy load.
19
20
Impeller
Magnetic bearings
The impeller is constructed from a single piece of aircraftgrade aluminium. Its low mass enables swift acceleration
and deceleration, resulting in highly dynamic control characteristics. This, in combination with a patented housing
design, provides a broad control range at extremely high
levels of efficiency.
For best possible levels of unit availability, the magnetic
bearings are oil-free and completely maintenance-free.
The smart controller,
with its integrated power failure protection system, recognises imbalances and sudden load
shocks and compensates for them – rendering additional
components such as buffer batteries and UPS devices
unnecessary.
Magnetic bearing turbo blowers
– the undisputed masters of
process air
Efficient, reliable and flexible – PillAerator turbo blowers from KAESER are compact
units developed specifically with aeration applications in mind. Equipped with contact-free magnetic bearings that require no lubrication, they guarantee a completely
wear-free operation which renders oil and bearing changes unnecessary.
Turbo blowers are used wherever process air is required in the low pressure range
– such as wastewater treatment, aerobic fermentation and flue gas desulphurisation
applications.
Technical specifications:
Flow rate: up to 267 m³/min
Pressure differential: 0.3 to 1.3 bar
Canned motor
Cooling
In a canned motor, rotor and stator are separated by a
cylindrical tube. This allows an
absolute hermetic sealing,
which means that contaminants are reliably prevented
from reaching the most sensitive parts of the machine.
Cooling takes place via an internal water circuit, so as to
ensure operating conditions are consistently optimised. In
addition to achieving constant temperatures for the motor
and frequency converter, this allows the control cabinet
to remain hermetically sealed. By conveying away all
accumulated exhaust heat via the cooling water, expensive
exhaust air ducting is rendered unnecessary.
21
One-stop shop:
Complete solutions from a
renowned systems provider
An operation’s blower air supply represents far more than the sum of the necessary equipment and components. By the same token, as a comprehensive
compressed air and blower air systems provider, KAESER KOMPRESSOREN
offers far more than just machines:
From detailed demand analysis to the seamless integration of a blower station
into an existing operation and life-long availability assurance throug
h the rapidresponse KAESER AIR SERVICE.
22
Precision demand analysis (ADA 2)
Fast, worldwide service
Once your exact blower air demand has been determined
by means of KAESER’s precision Air Demand Analysis
(ADA), our experts use the KAESER Energy Saving
System (KESS) to plan and design a solution that is specifically tailored to meet all your individual requirements,
whilst providing the highest possible levels of efficiency
and availability.
Since even the highest quality machines require regular
maintenance, KAESER AIR SERVICE, with its specially
trained Service Technicians and advanced spare parts
logistics, ensures continuous blower air availability across
the globe.
Detailed and expert planning
Optimal climate control
KAESER’s experts meticulously design every blower system to meet the specific needs of the customer. Needless
to say, this includes planning the machine room ventilation
and pipework, thereby ensuring peace of mind for users
and project planners.
KAESER
’s expertise and components in relation to climate
control are also essential elements in a holistic approach
to blower station design: The availability of cool intake air
increases efficiency levels and therefore saves energy.
23
KAESER blower accessories:
For a wide range of applications
Different applications often require a very specific air quality. For example, some
bulk materials are sensitive to heat, whilst others may clump together if humidity
levels become too high. Another potential problem is contamination of the process air by particles contained within the ambient air.
For challenges such as these, KAESER is able to offer not only a wide range of
cooler, dryer and filter models, but also the extensive experience of one of the
world’s leading systems providers, in order to ensure a perfect match of all air
production and treatment components.
Furthermore, the SIGMA AIR MANAGER 4.0 enables the delivery volume of
each blower station to be specifically tailored to mee
t actual air demand, thereby
ensuring maximum energy efficiency.
24
Coordination
Heat recovery
Depending on the versions in question, the SIGMA AIR MANAGER 4.0 compressed air management system can coordinate operation of 4, 8 or 16 blowers
within a blower station so as to ensure an even load distribution between the
units and thereby maximise energy efficiency.
The heat exchanger can be integrated into the process lines to enable
exceptional cooling of the process
air, even at high ambient temperatures. The hot water produced in
this way can be used for numerous
heating purposes.
Cooling
Climate control
Outdoor installation
At an ambient temperature of +20 °C,
the efficient ACA aftercooler is able
to reduce the temperature of the
compressed air to +30 °C without
incurring any additional costs.
Carefully matched components, such
as weather protection screens, fans,
inlet/discharge silencers and suitable air ducting, help to ensure and
maintain optimum climatic conditions
in
the machine room at all times.
At wastewater treatment plants,
COMPACT blowers are often
installed outdoors. Stainless steel
rainproof covers and premium-quality, powder-coated enclosures ensure
effective protection against the
elements.
25
26
Versions for specialist applications
Whether used on a silo vehicle as a mobile unloading station, for compression and/or for the conveying of media ranging
from nitrogen to steam, KAESER blowers are ever-reliable and efficient OEM components.
OMEGA B/PB – Corrosion resistant
WVC series – Fine vacuum
Blowers are available with rotors and block housings cast
from chromium-nickel alloy and with special internal block
sealing for processes such as the mechanical compression of water vapour in vacuum distillation of aqueous
media.
WVC series blocks with an intake capacity of up to 6,800
m³/h are ideal for fine-vacuum applications such as in
pumping stations with a backing pump to boost their
pumping speed.
OMEGA PV – Rough vacuum
OMEGA PN: Nitrogen conveying
With an intake capacity of up to 120 m³/min for lowvacuum applications and a maximum of 900 mbar differential pressure, the OMEGA PV blower block is exceptionally
robust and, with its ability to alternate between gauge
pressure and vacuum by selective switching of the process
lines, is perfectly suited for use with silo vehicles. Block
cooling is provided by ambient air via pre-inlet ducts.
For pneumatic conveying of bulk materials in a nitrogen
atmosphere, leakages of any kind – including from the
rotary lobe blower – must be kept to an absolute minimum.
PN series blocks are available with a wear-free sliding ring
seal on the drive shaft rotary transmission lead-through.
Complete packages with OMEGA PN blocks are also
available for nitrogen conveying applications.
27
28
Rotor and block machining
Measurement and inspection
Powder coating
All rotors and blocks are precision
machined to micron accuracy, so
that the resulting surface quality
rend
ers wear-prone sealing coatings
unnecessary.
In order to maintain consistent
product quality, we meticulously
inspect every single block housing
and rotor using precision measuring
equipment, so as to ensure that it is
manufactured to within permissible
tolerances.
The housings receive their
high-quality scratch and corrosionresistant surface finish in an
environmentally friendly, 180 °C
powder-coating process.
Advanced manufacture:
Quality and performance
A high level of vertical integration guarantees consistently high quality of both
mechanical and electrical components and ensures seamless interplay between
each individual part. All components are precisely matched to one another and
meticulously documented.
This enables traceability and guarantees a trouble-free supply of spare parts at
all times.
Block manufacture
Final inspection
Flexible production
As with the rotors, the housing for
every single KAESER rotary lobe
blower block is manufactured in an
advanced, climate-c
ers wear-prone sealing coatings
unnecessary.
In order to maintain consistent
product quality, we meticulously
inspect every single block housing
and rotor using precision measuring
equipment, so as to ensure that it is
manufactured to within permissible
tolerances.
The housings receive their
high-quality scratch and corrosionresistant surface finish in an
environmentally friendly, 180 °C
powder-coating process.
Advanced manufacture:
Quality and performance
A high level of vertical integration guarantees consistently high quality of both
mechanical and electrical components and ensures seamless interplay between
each individual part. All components are precisely matched to one another and
meticulously documented.
This enables traceability and guarantees a trouble-free supply of spare parts at
all times.
Block manufacture
Final inspection
Flexible production
As with the rotors, the housing for
every single KAESER rotary lobe
blower block is manufactured in an
advanced, climate-c
... ascunde
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