... voltage:220V, power 2000W2.Noise:70dba3.Three-phase industrial vacuum bypass pump Technical specifications: Model MS220 MS380 ... Noise 70dba 72dba Description:1. XY brand MS industrial vacuum suction machine has characteristics of beautiful,light ... ,economical ,dirable,etc. 2.Three-phase industrial vacuum bypass pump,low noise,long service life, ... lane , water lane,dust collection barrels. Pictures: