The DRY C and DRY CR pumps are dry pumps with two claw-shaped rotors which are running with synchronized rotation by means of a pair of gears.

• The compression chamber is free of lubricating or sealing fluids.

• The gears are oil bath type and the same oil is used to lubricate the bearings.

• The oil sump is separated from the compression chamber by labyrinth seals.

• Cooling is guaranteed by a fan.

• The electric motor is flanged and connected to the lower shaft with a coupling.

The DRY C and DRY CR pump series are suitable for the evacuation of closed systems or to operate at an absolute maximum constant vacuum:

• DRY C 100: up to 150 mbar (abs.)

• DRY C 250 – 300: up to 200 mbar (abs.)

• DRY CR 60: up to 100 mbar (abs.)

• DRY CR 150 - 400 - 500 - 1000: up to 200 mbar (abs.)

Pumps of the DRY CR series are equipped with a silencer and built-in non-return valve.

ACCESSORIES

The following accessories are useful for the installation and for the control of the pump operation parameters:

• Discharge silencer (DRY C)

• Inlet non-return valve

• External inlet filter

• Vacuum gauges / vacuostats