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Main application: fire prevention systems, granular powder transfer, concrete..
Operating pressure 16 bar.
Standard seals WHITE NBR, on request in transparent FDA or green FKM silicone

KA=DISTANCE IN mm INSIDE CLOSING FLAPS

Code dimensions
33M3000025-03/4 DN 25 (D) F 3/4" KA31
33M3000025-1 DN 25 (D) F 1" KA31
33M3000038-1 DN 38 F 1"1/2 KA51
33M3000038-1.5 DN 38 F 1"1/2 KA51
33M3000050-1.5 DN 52 (C) F 1"1/2 KA66
33M3000050-2 DN 52 (C) F 2" KA66
33M3000065-21/2 DN 65 F 2"1/2 KA81
33M3000075-2 DN 75 (B) F 2" KA89
33M3000075-2.5 DN 75 (B) F 2"1/2 KA89
33M3000075-3 DN 75 (B) F 3" KA89
33M3000110-4 DN 110 (A) F 4" KA133
33M3000125-5 DN 125 F 5" KA148
33M3000150-6 DN 150 F 6" KA160
33M3000205-8 DN 205 F 8" KA220
33M3000250-10
DN 250 F 10" KA278