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SECTION D Rev. 3-16 SWING CHECK VALVES UL / FM FIRE PROTECTION PRODUCTS U-2120-6BB FlangeEnds-BronzeDiscRingandBronzeSeatRing U-2122-6B1 FlangeEnds-RubberDiscFacingandBronzeSeatRing 2-1/2"-12" 200psi(1380kPa/13.80bar)WorkingPressure-400psi (2760kPa/27.60bar)TestPressure ❏ ListedbyUnderwriterLaboratories,Inc.andapprovedby Shaded area indicates change Factory Mutual Research Corporation. ❏ ANSIB16.1CL125Flanges PARTS LIST CU-4 CU-3 CU-16 CU-17 CU-18 CU-17 CU-18 CU-19 CU-2 CU-1 CU-5 CU-6 CU-19 CU-20 CU-20 CU-21 CU-21 CU-22 CU-22 CU-7 CU-8 CU-9 CU-11 CU-10 CU-13 CU-12 CU-15 CU-14 CU-7 CU-7 Rubber CU-3 E 19.1 CU-2 Q G F 19.1 R UU CU-15 CU-8 CU-12 CU-14 CU-13 CU-9 CU-11 CU-10 FF Bronze CU-3 CU-2 Catalog Parts Numbers CU-1 CU-2 CU-3 CU-4 CU-5 CU-6 CU-7 CU-8 CU-9 CU-10 CU-11 CU-12 CU-13 CU-14 CU-15 CU-16 CU-17 CU-18 CU-19 CU-20 CU-21 CU-22 CU-23 Description Cover ArmDiscBushing Arm CoverStud&Nut Body SeatHolder Plug(B) DiscSeatBolt BodySeatRing DiscSeatRing Disc Pin Washer DiscNut DiscStud CoverGasket Plug O-Ring HingePin BodyBushing Spacer ArmBushing DiscSeatBearing Material CastIron Bronze CastIron ZincCoatedSteel CastIron Bronze MalleableIron StainlessSteel Bronze Rubber CastIron StainlessSteel Brass Brass Brass Rubber Brass Rubber StainlessSteel Bronze Bronze Bronze Bronze Material Standard ASTM126ClassB ASTMB62 ASTM126ClassB ASTMA307GradeB ASTM126ClassB ASTMB62 ASTM47 ASTMA276Type304 ASTMB62 BunaD2000BK707 ASTM126ClassB ASTM276Type304 ASTMB21 ASTMB21 ASTMB21 BunaD2000BK707 ASTMB21 BunaND2000BK707 ASTM276Type304 ASTMB62 ASTMB62 ASTMB62 ASTMB62 SWING CHECK VALVE WEIGHTS 2-1/2" lbs. kg. CU-15 3" 51 23.1 4" 80 36.3 6" 152 68.9 8" 313 142.0 10" 462 209.6 12" 660 299.4 44 20.0 CU-12 CU-9 CU-11 CU-23 CU-14 CU-13 DIMENSIONAL INFORMATION FOR FLANGE END CHECK VALVES Size 2-1/2 3 4 6 8 10 12 (65) (80) (100) (150) (200) (250) (300) 6.57 7.48 8.31 10.59 12.2 13.86 16.26 Dimension - inches (mm) E (167) (190) (211) (269) (310) (352) (413) 3.50 3.78 4.53 5.51 6.77 7.99 9.53 F (89) (96) (115) (140) (172) (203) (242) 8.50 9.50 11.50 14.00 19.50 24.50 27.50 FF (216) (241) (292) (356) (495) (622) (698) G 1.50 1.50 1.50 1.75 1.75 2.00 2.00 (38) (38) (38) (44) (44) (53) (54) 7.01 7.52 9.02 10.98 13.50 15.98 19.02 R (178) (191) (229) (279) (343) (406) (483) 5.51 5.98 7.52 9.49 11.77 14.25 17.01 UU (140) (152) (191) (241) (299) (362) (432) 2.50 3.00 4.00 6.00 8.00 10.00 12.00 Q (65) (80) (100) (150) (200) (250) (300) CHECK VALVE ORDERING INFORMATION- Specify:Quantity,Size,andCatalogNumber CHECK VALVE PARTS ORDERING INFORMATION - Specify:Quantity,CatalogNumber,PartName,SizeofValve, CatalogNumberofValve,andYearDateofValve Page D-1-2