Liquid-Liquid Centrifugal Separator

The cGMP V-5 unit is a liquid-liquid centrifugal separator that can also be used for extraction and washing at process flow rates up to 5 gpm. Essentially, the design is based on the new version of the company's take-apart V-2. Additionally the cGMP V-5 offers the capability of rapid disassembly for inspection and cleaning.

The unique design enhances the utility of this liquid-liquid centrifuge in processes requiring cleaning and inspection of all wetted parts. This new model differs from previous designs in that it can be manufactured to meet FDA and cGMP requirements for sterilization and surface integrity. Liquid process streams often include small amounts of solids and particulates that accumulate on the internal surfaces of the rotor. Eventually these solids will impact the separation efficiency of the centrifuge. In addition, sterile processes such as those employed in the pharmaceutical industry require thorough equipment cleaning and inspection between batches. This involves frequent dismantling and necessitates equipment that is simple in design, not only from the operational standpoint but from a maintenance standpoint as well.

Disassembly of the unit takes only minutes. The motor is separated from the unit by loosening four bolts via easy to grip hand knobs. Six hinged bolts are then loosened by hand and the rotor/bearing housing assembly is lifted from the housing and placed in the clamping fixture. Next, the rotor nut is removed using the socket tool, the only tool required. At this point the bearing housing, rotor cover plate and heavy phase weir can be separated by the rotor. The same tool is also used to unscrew the upper rotor half from the lower allowing the vane package to be withdrawn. At this point all internal surfaces of the centrifuge can be inspected and cleaned.

Direct drive is established through the use of a feather key wherein the motor shaft fits into the rotor shaft. This provides easy motor installation without alignment and adjustment problems.

The cGMP design eliminates the need for a lower bearing and mechanical seal and reduces the number of steps needed to change the mixing option. This design cuts the cost and time for maintenance in half. Hinged bolts are again employed on the lower housing for easy removal of the bottom plate for maintenance and cleaning.

cGMP units are electropolish to meet industry guidelines.

CINC Costner Industries Nevada Corporation, 3535 Arrowhead Dr., Carson City, NV 89706. Tel: 800-380-CINC or 775-885-5080. Fax: 775-885-5087.