Operation: Fluid is fed through the inlet pipe coupling centered in the bottom of the separator. Flow is upward through the matrix, where separation occurs. Discharge is through the open spout at the top, insuring that the matrix is fully flooded and flow is uniform through the matrix, maximizing separation efficiency.

Water cooled units (Models 242, 262, 462, 72 and 82) require continuous flow of clean, low dissolved solids cooling water at a maximum temperature of 32°C (95°F).

Magnetic Field intensity, field gradient and energy gradient. The F1 Series is designed for maximum economy consistent with effective separation of fine ferromagnetic particles. Background magnetizing fields measured in the empty separating chamber (with pole pieces but without the matrix in place) are approximately 1000 Oersteds. With the matrix in place the background field increases substantially.

The background field induces a field several times more intense in the collecting elements. A high field gradient is provided at the collecting edges; the dimensions and orientation of the elements are essential to these high gradients. Energy gradient (HdH/dX) at the collecting edges of a standard matrix element fabricated of steel ribbon 1/4" in width and 0.02" thick is calculated as 2.5 x 10¹¹ Gauss²/cm, assuming that the field induced in the steel near the edge is about 5000 Gauss, as measurements indicate.

Materials of construction: Product contact parts are aluminum or gray cast iron (spout) and stainless steel, types 304 and 430. Type 430 stainless steel, which is highly ferromagnetic, is used for the matrix elements and spiders (removable pole pieces at either end of the matrix).

Standard matrix elements are nickel brazed. The separating chamber enclosure and all other metal product contact parts are made of nonmagnetic type 304 stainless steel.

Matrices: Standard grids are fabricated by winding in spiral form two ribbons of type 430 stainless steel, one crimped to provide uniform openings and one flat. Nickel brazing provides rigidity. The matrix supplied for a particular application is composed of grids selected for ribbon dimensions and size of openings suitable for the material to be processed.

Other matrix materials are available.