... 25%. 2, Blower can run for long time reliably. 3, Low vibration low noise. 4, Good performance. Features for BWT roots blower1, Energy ... , as adopted special sealing material. so air leakage amount is little, efficiency is high.3, Noise lowing profile and structure are applied ... .Belt drive outling drawing for BWT blowerInstallation sample for BWT blower three lobe roots blower