... saving 15% to 25%. 2, Blower can run for long time reliably. 3, Low vibration low noise. 4 ... , Good performance. Features for BWT roots blower1, Energy saving 15 to 25% than ... are NC machined. so the blower can run for long time realibly.4, Low vibration and low ... the casing.Belt drive outling drawing for BWT blowerInstallation sample for BWT blower three lobe roots blower