SIDE CHANNEL BLOWERS. Voltage Δ / Y 2 V 230/ / / / / /460 - Current Δ / Y Revolutions

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1 DB411/415/422/ DESCRIPTION Dutair blowers for pressure and vacuum are compact machines consisting of an electric motor with a built-on pump housing. The rotational speed of the impeller creates a high compression of the internal air, resulting in a vacuum at the inlet and pressure at the outlet of the blower. This process works without any contact, thus eliminating wear and the need for lubrication. FEATURES compressor and vacuum pump in a single unit robust oil-free low noise levels low vibration levels maintenance free vertical mounting with in- / outlet pointing upwards possible integrated silencers many different applications DB422 BENEFITS high motor efficiency and excellent power factor yield lower electrical consumption accurate performance curves in a frequency range of to 8 Hz make Dutair blowers suitable for applications with a wide operating area detailed sound level data for acoustic purposes Dutair blower motors are fitted with PTC thermistors as standard a variety of modifications possible for non-standard applications DB GENERAL TECHNICAL DATA DB411 DB415 DB422 DB Hz Hz Hz Hz Hz Hz bare shaft Power 1 kw max.2.6 Voltage Δ / Y 2 V 2/ 2/4 2/ 2/4 2/ 2/4 - Current Δ / Y Revolutions A /min 4.6 / / / / / / Protection class IP IP IP IP IP IP 4 PTC Thermistors C Efficiency class IE IE IE2 IE1 IE IE2 6 Efficiency % Power factor % Sound pressure 7 db(a) Weight kg n see notes on page 8 1 Modifications reserved

2 DB411/415/422/ PERFORMANCE Static pressure difference between in- and outlet p S against airflow Q at an ambient condition of 11 mbar and 2 C. All duty points on characteristics curves are in thermal equilibrium 8. Flow is rated in Nm /h defined as air, 11 mbar and C. Tolerance +/- %. See notes on page PRESSURE max Δp S DB411 max Δp S DB415 max Δp S DB Hz V 91 Hz V 9 Hz V 9 Hz V Hz 2 V 11 Hz 2 V 11 Q [Nm /h] TEMPERATURE RISE Temperature rise T measured directly at in- and outlet. Ambient condition of 11 mbar and 2 C. All duty points on characteristics curves are in thermal equilibrium 8. Tolerance +/-5 C. 1 8 PRESSURE ΔT [ C] POWER Motor power P delivered at i m p e l l e r s h a f t. A m b i e n t condition of 11 mbar and 2 C. All duty points on characteristics curves are in t h e r m a l e q u i l i b r i u m 8. Tolerance +/-5 %. Accurate data on current consumption for specific duty points available on request PRESSURE P [kw] Modifications reserved 2

3 DB411/415/422/ PERFORMANCE Static pressure difference between in- and outlet p S against airflow Q at an ambient condition of 11 mbar and 2 C. All duty points on characteristics curves are in thermal equilibrium 8. Flow is rated in Nm /h defined as air, 11 mbar and C. Tolerance +/- %. See notes on page 8. VACUUM 2 2 max Δp S DB411 max Δp S DB415 max Δp S DB Hz V 91 Hz V 9 Hz V 9 Hz V Hz 2 V 11 Hz 2 V Q [Nm /h] TEMPERATURE RISE Temperature rise T measured directly at in- and outlet. Ambient condition of 11 mbar and 2 C. All duty points on characteristics curves are in thermal equilibrium 8. Tolerance +/-5 C. VACUUM ΔT [ C] POWER Motor power P delivered at i m p e l l e r s h a f t. A m b i e n t condition of 11 mbar and 2 C. All duty points on characteristics curves are in t h e r m a l e q u i l i b r i u m 8. Tolerance +/-5 %. Accurate data on current consumption for specific duty points available on request. VACUUM P [kw] -2-2 Modifications reserved

4 DB411/415/422/ SOUND LEVEL PRESSURE DB411 SOUND LEVEL VACUUM DB K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K Hz + mbar 56.5 db(a) 7 Hz +8 mbar 62.4 db(a) 7 Hz + mbar 66.2 db(a) 7 Hz + mbar 69.5 db(a) K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K Hz - mbar.2 db(a) 7 Hz -8 mbar.7 db(a) 7 Hz -8 mbar 6. db(a) 7 Hz - mbar. db(a) K 2K 4K 8K Hz + mbar 71.9 db(a) 7 Hz - mbar.9 db(a) K 2K 4K 8K K 2K 4K 8K Modifications reserved 4

5 DB411/415/422/ SOUND LEVEL PRESSURE DB415 SOUND LEVEL VACUUM DB K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K Hz + mbar 58.5 db(a) 7 Hz +1 mbar 64.4 db(a) 7 Hz +1 mbar 68.9 db(a) 7 Hz +9 mbar 71.4 db(a) 7 Hz + mbar 7. db(a) 7 8 Hz + mbar 74.8 db(a) K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K Hz - mbar 56.4 db(a) 7 Hz -9 mbar 61.9 db(a) 7 Hz -1 mbar 66.1 db(a) 7 Hz -1 mbar.7 db(a) 7 Hz -8 mbar 7. db(a) 7 8 Hz - mbar 7.1 db(a) K 2K 4K 8K Modifications reserved 5

6 DB411/415/422/ SOUND LEVEL PRESSURE DB422 SOUND LEVEL VACUUM DB K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K Hz + mbar 58.6 db(a) 7 Hz +1 mbar 62. db(a) 7 Hz +1 mbar.7 db(a) 7 Hz +1 mbar 69.1 db(a) 7 Hz +1 mbar.6 db(a) 7 8 Hz +8 mbar 72.5 db(a) K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K K 2K 4K 8K Hz - mbar.1 db(a) 7 Hz -9 mbar 61.4 db(a) 7 Hz -1 mbar 6.9 db(a) 7 Hz -1 mbar 68.2 db(a) 7 Hz -1 mbar 72.9 db(a) 7 8 Hz -9 mbar 72.6 db(a) K 2K 4K 8K Modifications reserved 6

7 DB411/415/422/ DIMENSIONS DB411 & DB415 & DB M25 x M8 x G2" INLET OUTLET DIMENSIONS DB M8 x x M8 x G2" INLET OUTLET all dimensions in mm except in- and outlet connection CAD models available in STEP format tolerance +/-2 mm in case of discrepancy between dimensional drawing and CAD model, dimensions in dimensional drawing take precedence Modifications reserved 7

8 DB411/415/422/ ORDERING INFORMATION 5 DB S 5 U ss HT RS FE IP56 Q G Ex C... Optional painting, standard RAL2 e.g. C5: RAL5 Optional ATEX non-sparking version ATEX Ex II Cat G/D Ex-na Optional G: blower in gas-tight version available for single stage blowers Optional Q: anti condensation heating 2 V Optional motor protection: IP56 / IP, for IP56 specific mounting position Optional seal on motor shaft FE: PTFE seal / Vt: Viton seal Optional bearing material RS: Improved resistance against moisture Optional bearing lubrication 14 HT: high temp. / LT: low temp. Optional bearing material ss: stainless steel Optional special motor voltage e.g. U-: V at Hz version Motor size Blower size S: Double stage serial blower P: Double stage parallel blower Dutair Blower 51: single phase / 5: three phase COMMENTS WARNING: Comparing performance data can be misleading. Dutair specifications are based on a thermal equilibrium 8 for all duty points along the characteristics curves in this document. Many commercial based flow characteristics curves defined as m³/h air at 2 C, 11 mbar(a) and +/-1 % tolerance but can be up to % higher than accurate characteristics curves defined as Nm³/h air at C, 11 mbar(a), thermal equilibrium 8 duty points and +/- % tolerance as specified in this Dutair document. The performance measurements are executed with instruments calibrated by DNV KEMA and are traceable to primary and/or internationally accepted measurement standards. 1 Maximum shaft power allowed at continuous operation. Rated output electric motor in accordance with NEN-EN-IEC Rated voltage for three phase triangle and star connection. Allowed supply voltage tolerance 5 %. Consult your Dutair dealer for different supply voltages. Protection class in accordance with NEN-EN-IEC pieces PTC thermistors connected in series fitted in each motor phase. 5 Efficiency classification in accordance with NEN-EN-IEC Efficiency rated at 1% motor load. 7 Free field equivalent continuous sound pressure level A-weighted L eq[db(a)]. Unless specified L eq[db(a)] rated at % of maximum pressure at Hz. Tolerance +/- 2 db(a). Conditions as note 1. 8 Thermal equilibrium is the state reached when the temperature rises of several parts of the machine as well as the temperature rise between in- and outlet do not vary by more than a gradient of 2 C per hour. 9 Operation at V within range of to 8 Hz: 11 % of rated current at Hz is allowed for Hz power rating. 1 Characteristics for DB415 & DB422 only. 11 Maximum performance at & Hz is limited by temperature rise as well as current. At Hz % and at Hz 8 % of nominal motor current. 12 Free field class 1 octave band measurements in accordance with IEC 612 unweighted L p[db(z)]. Tolerance +/- 5 db(z). Conditions as note 1. 1 Measurements at 1 m distance with in- and outlet duct connected to the blower on a reflective surface. Class 1 sound level meter Delta Ohm HD21UC/A according to IEC Acoustic calibration prior to measurements with class 1 calibrator HD22ACC according to IEC Standard ambient temperature range C. Modifications reserved 8