They are nine models of CRVpro available with free air displacement from 1.8 cfm to 52.5 cfm. Ultimate pressure to 2x10⁻³ torr. Three models of pumps with explosion proof motors, with free air displacements from 2.8 to 12.8 cfm, are available by clicking on the "Explosion Proof" tab below.
reduced risk of chemical attacks and oil breakdown by diluting chemical vapors with a larger oil chamber
slowing down corrosion by cool running operation
provides a measure of protection from sublimed chemical vapors with coating on pump module and oil case