4.7.3 Portfolio overview
Roots pumps can be supplied in a number of different versions:
- Standard pumps with shaft seal rings and a cast iron housing
- Hermetically sealed standard pumps with magnetic coupling and a cast iron housing (M series)
- Gas-circulation-cooled Roots pumps with shaft seal rings (G series) or magnetic coupling
- Roots pumps for potentially explosive environments and for displacement of explosive gases (ATEX series)