DELTA series high temperature absolute filters SagiCofim Technical features DELTA series TB - TC absolute and semi-absolute filters, are provided with deep-pleated filtering packs, aluminum separators and stainless steel frame. These filters are mainly used in applications with high temperature needs or where, even in case of fire, the filters have to keep on working for some time. TB: absolute filters class H13, for high temperature applications. Their frame is made of AISI 304 stainless steel, and the deep pleated filtering pack is sealed by means of silicon sealant. TC: semi-absolute filter class E11, used as safety filters in case of fire. Their frame is made of AISI 430 stainless steel, and the deep pleated filtering pack is sealed by means of fiber glass sealant. Both TB and TC models have a special gasket. All the filters are individually tested and labeled to assure the compliance with the measured features. Filtering Initial surface pressure drop Type Dimensions (mm) Nominal air flow rate Q Typical curves Technical draft