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Double stage blowers

Double stage blowers

Double stage blowers are side channel blowers in two stage with two impellers.
It is in two impellers. With up to 2,500m3/h of suction and a differential pressure of up to 104Kpa, Our double stage side channel blowers has achieved their reputation. Meanwhile also conquered many clients around the world.

In the field of mechanical engineering, it has the advantages of high reliability, low maintenance and long life. So, have made it as the first choice for different industries.
When equipped with a frequency converter, the performance of the vacuum compressor can have a great improved. By got UL/CCC/CE certified, so our blowers can be used in anywhere in the world. Working principle of Double Stage Blowers:
The Double Stage Blowers with two impellers, and mount they directly to the axis of the motor, besides, they are completely no contact.
Since installing the axis of the Side Channel Blowers outside the compression hole, it can operate even at the maximum differential pressure, meanwhile, make sure that the maximum working reliability.
First, Draw air or gas through the suction mouth 1. Next, when it enters the side channel 2; After the rotary impeller 3 speeds up air or gas in the direction of rotation, then the centrifugal force on the blade increases the speeds of air or gas blowing outward and also the positive pressure.
But when the rotation processing, it increases the kinetic energy of air or gas, meanwhile increasing the positive pressure along the side channel; Finally, the side channel become narrow at the beginning of the outlet, it forces air or gas to blow out through outlet and the Silence.

Data sheet of Double stage blowers:

Mode No.Power(KW)Air Flow(m3/H)Max Vaccum(Mbar)Max pressure(Mbar)
2RB220H260.7KW85210220
2RB220H260.83KW102250250
2RB320H260.85KW110200230
2RB320H260.95KW130240240
2RB420H361.6KW150260260
2RB420H362.05KW180320310
2RB420H462.2KW150330440
2RB420H462.55KW180350420
2RB520H463.0KW230340410
2RB520H463.45KW275380360
2RB520H574.0KW230390490
2RB520H574.6KW275410480
Mode No.Power(KW)Frequency(HZ)Max Vaccum(Mbar)Max Compressor(Mbar)
2RB720H162.2KW50220210
2RB720H162.55KW60170150
2RB720H263.0KW50280260
2RB720H263.45KW60230220
2RB720H374.3KW50360380
2RB720H374.8KW60350320
2RB720H475.5KW50440500
2RB720H476.3KW60440500
2RB720H577.5KW50440570
2RB720H578.6KW60460660
2RB740H374.0KW50150140
2RB740H374.6KW6010090
2RB740H475.5KW50240260
2RB740H476.3KW60210200
2RB740H577.5KW50240320
2RB740H578.6KW60270300
2RB820H175.5KW50240240
2RB820H176.3KW60170160
2RB820H277.5KW50400400
2RB820H278.6KW60360330
2RB820H3711.0KW50430600
2RB820H3712.6KW60460600
2RB820H4715.0KW50460670
2RB820H4717.3KW60490750
2RB840H277.5KW50200180
2RB840H278.6KW60150120
2RB840H3711.0KW50280370
2RB840H3712.6KW60310350
2RB920H1712.5KW50300270
2RB920H1714.5KW60220200
2RB920H2716.5KW50410370
2RB920H2719.0KW60340300
2RB920H3720.0KW50440500
2RB920H3723.0KW60440430
2RB920H4725.0KW50440590
2RB920H4729.0KW60440540
2RB940H2715.0KW50130110
2RB940H2717.5KW606040
2RB940H3720.0KW50220200
2RB940H3723.0KW60160130
2RB940H4725.0KW50310270
2RB940H4729.0KW60270220
2RB943H2715.0KW50160170
2RB943H2717.5KW60110120
2RB943H3720.0KW50250230
2RB943H3723.0KW60190180
2RB943H4725.0KW50310270
2RB943H4729.0KW60270230
3RB350T263.0KW50230190
3RB350T263.45KW60150120
3RB350T374.0KW50350310
3RB350T374.6KW60280230
3RB350T475.5KW50530480
3RB350T476.3KW60480390
3RB350T577.5KW50530700
3RB350T578.6KW60580610
3RB350T6711.0KW50530870
3RB350T6712.6KW60580930
3RB550T475.5KW50270220
3RB550T476.3KW60180130
3RB550T577.5KW50450370
3RB550T578.6KW60370280
3RB550T6711.0KW50530630
3RB550T6712.6KW60540530
3RB550T7715.0KW50530890
3RB550T7717.3KW60540870
4RB220H260.81KW50370490
4RB220H260.94KW60440480
4RB220H561.5KW50370650
4RB220H561.75KW60500740
4RB220V751.5KW50370600
4RB220V751.75KW60420600
4RB320H461.1KW50440480
4RB320H461.3KW60480460
4RB320H561.5KW50440540
4RB320H561.75KW60560600
4RB320V741.5KW50400550
4RB320V741.75KW60390540
4RB320V751.5KW50400550
4RB320V751.75KW60390540
4RB420H261.5KW50480450
4RB420H261.75KW60430410
4RB420H563.3KW50500750
4RB420H563.8KW60510850
4RB520H262.2KW50470460
4RB520H262.55KW60500450
4RB520H774.0KW50500820
4RB520H774.6KW60530810
4RB620H363.KW50460500
4RB620H363.8KW60480420
4RB620H575.7KW50460740
4RB620H576.6KW60480840

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Remarks:1. Measured the surface of acoustic intensity according to the distance of EN216801 at 1 meter. At this time, it clamps the Side Channel Blower to a moderate inlet positive pressure; Connecting the hose to the exhaust side; And the suction side is not equipped with a negative pressure relief 2. To order information of the selection, please refer to the accessory set. Besides, the ultimate positive pressure of the valve basing on an ambient temperature of 25 °C; And is related to the cooling medium.3. Regarding the 2RB1 943 model, there is only a vertical installation.4. Tolerance: The motor complies with DIN EN 60 034/DIN IEC 34-1. It has an insulation class F. 

Three phase:Fixed voltage +10%Wide pressure +5%US Standard (UL) and Canadian Standard(CSA) are 10%/+6% respectively Simplex: Fixed voltage +5%Under continuous working conditions. If only using 90% of the maximum working positive pressure, then the voltage for the tolerance can increase to ±10US Standard (UL)and Canadian Standard (CSA) are 10% + 6% respectively Frequency ±2%.