Tamfelt Oy Ab

Aulis Perala

Matti Servo

Ilkka Alatalo

A filter bag (1) for a disc-like filter, comprising filter surfaces (2) to be positioned on both sides of a filter element. The filter element is inserted into the filter bag, and the filter bag is heated so that the heated portion shrinks, thus tightening the filter bag around the filter element. The filter bag (1) is so shaped that the filter parts (2) to be positioned on both sides of the filter element are substantially of the same shape and size as the required filter surfaces. An edge part (3) of a material substantially impermeable to liquid and shrinkable at elevated temperature is attached to the edges of the filter parts.

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Teraksentie, Finland

Aulis Perala