ALUMINIUM CENTRIFUGAL FANS. 4 x M6 x OUTLET x M6 x 20

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Elfreda Greene
5 years ago
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DESCRIPTION Dutair LK-series industrial ventilators consist of a robust body made from die-cast aluminium alloy. Impellers are made of extruded aluminium.

The maximum ambient operating temperature is ºC and the maximum temperature of the gases to be handled is 8ºC.

1 DESCRIPTION Dutair LK-series industrial ventilators consist of a robust body made from die-cast aluminium alloy. Impellers are made of extruded aluminium. The asynchronous electric motors are maintenance free and provided with long life ball bearings. All models have fully enclosed IP motors with a lip seal fitted to the drive shaft. The maximum ambient operating temperature is ºC and the maximum temperature of the gases to be handled is 8ºC. FEATURES all Dutair ventilators can be mounted in any position desired with the exception of the inlet pointing upwards the outlet can be rotated in eight positions high capacity for narrow ducting LK-series provide pressures of up to. kpa suction as well as pressure operation low vibration levels maintenance free many different applications BENEFITS very low noise levels at high performances accurate performance curves in a frequency range of to 8 Hz make Dutair fans suitable for applications with a wide operating area both suction and pressure performance curves for operation in Nm³/h detailed sound level data for acoustic purposes a variety of modifications are possible for non-standard applications n see notes on page GENERAL TECHNICAL DATA Hz Hz Power kw Voltage Δ / Y V /9 Current Δ / Y A.7/7.9 Revolutions /min 9 /79.7/7.9 8 Protection class IP IP Efficiency class IE IE Efficiency % 9. Power factor % 88. Sound pressure db(a) 78. Weight kg DIMENSIONS all dimensions in mm, tolerance +/- mm 7 x M x x M INLET B x OUTLET 7 8 x M x 8 CAD models available in STEP format in case of discrepancy between dimensional drawing and CAD model, dimensions in dimensional drawing take precedence Modifications reserved

2 PERFORMANCE Total pressure difference between inlet and outlet p t against airflow Q at an ambient condition of mbar and C. All duty points on thermal equilibrium 7. Flow is rated in Nm /h defined as air, mbar and C. Tolerance +/- %. See notes on page PRESSURE max 8 Hz V 8 7 Hz V 8 Hz V 8 Hz V Hz V Hz V Hz V Δp t [Pa] 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 mbar and C. All duty points on t h e r m a l e q u i l i b r i u m 7. Tolerance +/- %. Accurate data on current consumption for specific duty points available on request PRESSURE P [kw] Modifications reserved

3 PERFORMANCE Total pressure difference between inlet and outlet p t against airflow Q at an ambient condition of mbar and C. All duty points on thermal equilibrium 7. Flow is rated in Nm /h defined as air, mbar and C. Tolerance +/- %. See notes on page VACUUM max 8 Hz V 8 7 Hz V 8 Hz V 8 Hz V Hz V Hz V Hz V Δp t [Pa] 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 mbar and C. All duty points on t h e r m a l e q u i l i b r i u m 7. Tolerance +/- %. Accurate data on current consumption for specific duty points available on request VACUUM P [kw] Modifications reserved

4 SOUND LEVEL PRESSURE Hz 8 Nm /h. db(a) K K K 8K Hz Nm /h. db(a) K K K 8K Hz Nm /h 7. db(a) K K K 8K Hz 7 Nm /h 78. db(a) K K K 8K Hz Nm /h 8. db(a) K K K 8K 7 Hz Nm /h 87. db(a) K K K 8K 8 Hz Nm /h 9. db(a) K K K 8K SOUND LEVEL VACUUM Hz 8 Nm /h.9 db(a) K K K 8K Hz Nm /h. db(a) K K K 8K Hz Nm /h 7. db(a) K K K 8K Hz 7 Nm /h 78. db(a) K K K 8K Hz Nm /h 8. db(a) K K K 8K 7 Hz Nm /h 87. db(a) K K K 8K 8 Hz Nm /h 9. db(a) K K K 8K Modifications reserved

5 ORDERING INFORMATION LK 8 RD 7 U ss HT RS IP Q C... PTC Optional -piece PTC thermistors fitted in series in each motor phase Optional painting, standard RAL7 e.g. C7: RAL7 Optional Q: anti condensation heating V Optional motor protection: IP / IP, for IP specific mounting position Optional bearing material RS: Improved resistance against moisture Optional bearing lubrication HT: high temp. / LT: low temp. Optional bearing material ss: stainless steel Optional special motor voltage e.g. U-: V at Hz version Pumphouse orientation angle RD: Clockwise rotation sense Model size Model centrifugal fan : single phase / : three phase RD RD RD9 RD RD8 RD RD7 RD COMMENTS WARNING: Comparing performance data can be misleading. Dutair specifications are based on a thermal equilibrium 7 for all duty points along the characteristics curves in this document. Many commercial based flow characteristics curves defined as m³/h air at C, mbar(a) and +/- % tolerance but can be up to % higher than accurate characteristics curves defined as Nm³/h air at C, mbar(a), thermal equilibrium 7 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. 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 %. Consult your Dutair dealer for different supply voltages. Protection class in accordance with NEN-EN-IEC -. Efficiency classification in accordance with NEN-EN-IEC -. Efficiency rated at % motor load. Free field equivalent continuous sound pressure level A-weighted L eq[db(a)]. Unless specified L eq[db(a)] rated at % of maximum flow at Hz. Tolerance +/- db(a). Conditions as note. 7 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 C per hour. 8 Operation at V within range of to 8 Hz: % of rated current at Hz is allowed for Hz power rating. 9 Free field class octave band measurements in accordance with IEC unweighted L p[db(z)]. Tolerance +/- db(z). Conditions as note. Measurements at m distance with in- and outlet duct connected to the fan on a reflective surface. Class sound level meter Delta Ohm HDUC/A according to IEC 7-. Acoustic calibration prior to measurements with class calibrator HDACC according to IEC 9. Standard ambient temperature range C. Modifications reserved

ALUMINIUM CENTRIFUGAL FANS x M6 x x M6 x 16

ALUMINIUM CENTRIFUGAL FANS x M6 x x M6 x 16 LK4 DESCRIPTION Dutair LK-series industrial ventilators consist of a robust body made from die-cast aluminium alloy. Impellers are made of extruded aluminium. The asynchronous electric motors are maintenance