RGS Vacuum Systems offers three-phase suction units that operate at high vacuum and are designed for conveying powder compounds and powders in general. V: This version features a vacuum pump with dry blades and an unprotected model without motor housing. VC: This version features a vacuum pump with dry blades and a model with motor housing. The 160m³ and 280m³ systems come with two vacuum pumps each, with a capacity of 80m³ and 140m³ respectively.