O-Ring set in NBR for pneumatic actuator type AVT 140 (15) "Flanged ball valve type ALFA 50 SB, DN 4"" "Spare ball for ball valve ALFA 50 DN 4"", material CF8M (18)"; "Sealing set for ALFA 50, DN 4"" material TFM 1600 O-Ring set in NBR for pneumatic actuator type AVT 125 (20) "Flanged ball valve type ALFA 50 SB, DN 3"" "Spare ball for ball valve ALFA 50 DN 3"", material CF8M (23)"; "Sealing set for ALFA 50, DN 3"" material TFM 1600 ALFA 20R (KA603228) ALFA 103 (KA613801) A64F/GT300 GT 143x90 QTF 90, DOUBLE QTF 90, DOUBLE QTF 110, DOUBLE ALFA 24K (KAN24604)