Vg = 0.85 – 11 ccm/rot
Pres nom = up to 250 bar
Pres max = up to 280 bar
These double pumps are obtained from assembling single pumps group 1, which generally allow various types of shaft, flange mounting, inlet and outlet ports. These pumps have sealing intermediate between steps. Each step maintains the characteristics of the simple pump. It can be built also multiple pumps.