How to Select the Blower Model
The Selection Chart indicates the relationships between the blower model, bores, revolutions, discharge pressures, actual air flow rates, and the shaft powers.
1. The amount of air indicated in the Selection Chart represents the suction amount under the following standard conditions:
temperature 20°C, absolute pressure 101.3kPa, and relative humidity 70%.
2. The amount of air under reference conditions (0°C, absolute pressure 101.3kPa, dry) can be converted to amounts of air under standard suction conditions by the formula below if the suction pressures are the same:
where
Qs, amount of air (m3/min) under standard suction conditions indicated on the Selection Chart;
Qn, amount of air (m3/min) under reference suction conditions;
Suction pressure is ambient pressure, 101.3kPa; ts, the suction temperature in °C
3. To convert amounts of air under discharge conditions to amounts of air under standard suction conditions indicated on the Selection Chart, use the following formula:
Qd, amount of air (m3/min.) under discharge conditions;
Pd, discharge pressure (kPa)
Ts, the suction temperature in °C
Td, discharge temperature in °C
4. Using the amount of air and the necessary discharge pressure obtained from the above calculations, determine your blower model, bore, revolution, and shaft power referring to the Selection Chart.
5. Your selectable range can overlap several models. It is recommended that one with a smaller model number be selected for cost economy, or one with a larger model number be selected for lower noise.
6. For necessary motor output, refer to required power (La) in the Selection Chart.
Contact us: http://www.environmech.com/p/contact-us.html Website: www.Environmech.com
