Patent ID: 8328709

Claim:
An apparatus for separating a fluid flow, the fluid flow comprising lighter and heavier fractions to be separated from each other, the apparatus comprising at least one inlet and at least two outlets, the apparatus further comprising a rotary centrifuge device , the lighter fractions being carried through one of the outlets and the heavier fractions being carried through the other one of the outlets, wherein a spin-up assembly is arranged upstream of the centrifuge device, the spin-up assembly being configured in such a manner that the fluid flow entering the centrifuge device is imparted a rotational movement, the rotational velocity of the centrifuge device being adjustable to allow adjustment of the relative velocity difference between the rotating movement of the fluid flow and the rotational velocity of the centrifuge device and wherein the spin-up-assembly and/or centrifuge device is located in a replaceable bore that is replaceable with at least one other bore containing an open pipe without any constrictions or blocking elements, whereby the separator may be pigged.