SUCTION FILTER MEDIUM FOR TURBINE

摘要

PROBLEM TO BE SOLVED: To provide a suction filter medium for a turbine not contaminating the interior of the turbine, having high particle collection efficiency, low in pressure loss and capable of being regenerated while suppressing the deterioration of capacity caused by washing. SOLUTION: The suction filter medium for the turbine contains a polytetrafluoroethylene porous film and an air permeable support material and is characterized in that pressure loss is 100-300 Pa and a PF value is not less than 15. The pressure loss of the polytetrafluoroethylene porous film is preferably set to 70-250 Pa and the PF value thereof is preferably set to 18 or more.