The DRY C and DRY CR series pumps are dry pumps with two hook-shaped rotors. They are placed in synchronised rotation by means of a pair of gears. The compression chamber is free of lubricating or sealing fluids. The gears are in an oil bath, and the same oil carries out the lubrication of the bearings. The oil pan is separated from the compression chamber by labyrinth seals.

Cooling is ensured by a fan. The electric motor is flanged and joined to the motor shaft with a joint.

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DRY claw vacuum pumps and dry compressors are designed for applications where the treated elements do not need to be contaminated during the process. The absence of wear components in these pumps offers big saving advantages in terms of maintenance and associated downtime.

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

• DRY C 100 up to 150 mbar (absolute)

• DRY C 250 - 300 up to 200 mbar (absolute)

• DRY CR 60 up to 100 mbar (absolute)

• DRY CR 150 - 400 - 500 - 1000 up to 200 mbar (absolute)

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The DRY CR series pumps are complete with silencer and integrated non-return valve