Becker Side Channel Blowers SV 5. / SV 7. / SV 8. Series
description
Transcript of Becker Side Channel Blowers SV 5. / SV 7. / SV 8. Series
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Becker Side Channel BlowersSV 5. / SV 7. / SV 8. Series
... difference in design and performance06.10.2006, Rm
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Side channel blowers have been developed in the 50s simultaneously by Siemens and Becker (2. generation)
Siemens introduced the side channel blowers about 3 months earlier than Becker
There are some substantial differences in the design of Becker´s side channel blowers, which are still existing (especially the impeller design)
Becker Side Channel Blowers History
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Becker Side Channel Blowers Blower Design
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Becker Side Channel Blowers Main Blower Parts
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Housings - Front, Back
Impeller
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Becker Side Channel BlowersUnique Becker Impeller Design
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CompetitorsOpen Impeller
=One ImpellerOne Stage
BeckerClosed Impeller
=One ImpellerOne or Two
Stages
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Becker Side Channel BlowersFunction
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Housings - Front, Back
Higher Pressure
Lower Pressure
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Becker Side Channel BlowersFunction
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Rotation Speed
Centrifugal Force
Higher Pressure
Lower Pressure
Way of Air Elementsin the Blower
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0
50
100
150
200
250
300
350
0 50 100 150 200 250 300 350 400
pressure dp [mbar]
flo
w
[m3
/h]
Flexibility characteristic curveexample: compressors SV 8.130 and SV 8.160
SV 8.160/1 100 Hz
SV 8.130/1 100 Hz
Becker Side Channel BlowersModification of Characteristic
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Becker Side Channel BlowersUnique Becker Impeller Design
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Special Blower Shape for Best Efficiency
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Becker Side Channel BlowersNoise Reduction
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Silencersfor
Inlet and/or Outlet
SpecialGroove
forNoice
Reduction
InletOutlet OutletInlet
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Unique Becker impeller design Unique Becker blower design (/1 /2 /5) Integrated accessories (Becker patent) Flexible length of silencers Low bearing temperatures (specially for SV 8. series)
robust design and best reliability Only one basic type for standard and VARIAIR version Coated version (/2-500) Optional sound proof box
Becker Side Channel BlowersSV 7. ... and SV 8. ... Series
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2 Parallel Flows Pressure or Vacuum
2 Stages Pressure or Vacuum
2 Separate Stagese.g. 1x Pressure / 1 x Vacuum
Becker Side Channel BlowersUnique Becker Impeller Design
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Becker Side Channel BlowersUnique Becker Blower Design
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3 Version UsingSame Parts
only by DifferentAssemblies
Single-Stage / Double-Flow
Double-Stage / Single-Flow
2x Single-Stage / Single-Flow
Outlet
Outlet
Outlet
Outlet
Inlet
Inlet
Inlet
Inlet
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e.g. SV 8.130/1Single-Stage / Double-Flow
e.g. SV 8.130/2Double-Stage / Single-Flow
Becker Side Channel BlowersUnique Becker Blower Design
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Becker Side Channel BlowersUnique Becker Blower Design
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e.g. SV 8.190/52x Single-Stage / Single-Flow
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SV 7.190/1 with integrated vacuum relief valve and integrated vacuum filter
SV 7.190/2 with integrated pressure relief valve and integrated air inlet filter
Becker Side Channel BlowersUnique Becker Integrated Accessories
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Becker Side Channel BlowersUnique Becker Integrated Accessories
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Integrated Vacuum Relief Valve
Integrated filter
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Full Length Silencers Without Silencers1/2 Length Silencers
Becker Side Channel BlowersFlexible Lenght of Silencers
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Optional: ”Flock Coated“ version
Higher efficency Higher pressures
Coating
Becker Side Channel Blowers„Flock“ Coated Version
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radialaxial
Areas with „Flock“ Coating
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Becker Side Channel Blowers„Flock“ Coated Version
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Becker Side Channel Blowers„Flock“ Coated Version
e.g. SV 8.400/2
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e.g. SV 8.400/106.10.2006, Rm
Becker Side Channel BlowersSV 8. Series
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Position of outside bearingin the housing cover
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Becker Side Channel BlowersSV 8. Series - Low Bearing Temperatures
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Example SV 7.330/2 - 8.330/2
3035404550
55606570
0 100 200 300Vacuum (mbar)
Bea
rin
g T
emp
erat
ure
(°C
)
SV 7.330/2, 50 Hz
Bearing Inside
SV 7.330/2, 60 Hz
Bearing Inside
SV 8.330/2, 50 Hz
Bearing Outside
SV 8.330/2, 60 Hz
Bearing Outside
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Becker Side Channel BlowersSV 8. Series - Low Bearing Temperatures
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• Bearing assembled in lid Improved cooling for the bearing
• Wearfree system Long-life, maintenance-free
• Simple construction High reliability in operation
• Option between twin-flow and two-staged operation High flow-rate as well as high pressure may be obtained
• High variability due to modularity in spite of small number of parts Quick response to customers´ special requirements
• Computer Aided Design (PRO/Engineer) Possibility of data exchange with the customer
• Motor with World Wide Winding 50 Hz: Δ 190 – 255V / Y 330 – 440V
60 Hz: Δ 190 – 290V / Y 330 – 500V*06.10.2006, Rm
Becker Side Channel BlowersSV 8. Series - Advantages
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Becker Side Channel BlowersSV 8. Series - VARIAIR Version
e.g. SV 8.130/2
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Becker Side Channel BlowersSV 8. Series - VARIAIR Version
Temperature Limit(e.g. 85°C for Bearing)
Flow Rate (m3/h)
Pressure (mbar)06.10.2006, Rm
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Becker Side Channel BlowersSV 8. Series - VARIAIR Version
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Temperature Limit(e.g. 85°C for Bearing)
Flow Rate (m3/h)
Vacuum (mbar)
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0 50 100 150 200 250 300 350 400-50-100-150-200-250-3000
20
40
60
80
100
120Saugvermögen (m3/h)
0
20
40
60
80
100
120Liefermenge (m3/h)
SV 8.130/1 ÜberdruckSV 8.130/1 Unterdruck
Überdruck (mbar)Unterdruck (mbar)
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Becker Side Channel BlowersSV 8. Series - VARIAIR Version
Temperature Limit(e.g. 85°C for Bearing)
Vacuum (mbar) Pressure (mbar)
Flow Rate (m3/h)
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for the following models:
SV 8.130/160/190 incl. VAU SV 8.400 – except VAU SV 7.330/430 – except VAU SV 5.250
Dimensions 660 x 585 x 540 mm Reduction of the sound level by approx. 10 db(A) in average
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Becker Side Channel BlowersOptional Sound Proof Box
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Do not sell side channel blowers by KW (usually our blowers can be selected 1 to 2 sizes
smaller compared to cheap blowers made in e.g. Italy or China)
Do not select side channel blowers by free air flow butrefer to operation point
Please take care if you operate with the atmospheric or with the volumetric flow rate (most of our competitors are showing the volumetric flow curve)
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Becker Side Channel BlowersSV 5. / 7. / 8. Series - Summary