Check Valves Products Catalog

13.1Shaded area indicates change Rev. 4-14SWING CHECK AND FLEXIBLE DISC CHECK VALVESMUELLER® Swing Check Valve Features8001 Series Swing Check ValvesMUELLER® Flexible Disc Check Valve*Contact our Customer Service Department or your local representative for upgraded check valves to handle your specific application.8001 Series Style Shown2"-12" Style Shown? Meets or exceeds all applicable requirements of ANSI/AWWA C508 Standard? Flanged end dimensions and drilling comply with ANSI B16.1, class 125? Iron body, bronze mounted (IBBM)? Choice of gravity operated, lever and weight operated, or lever and spring operated valves? For vertical or horizontal installation; gravity operated horizontal installation only? Epoxy coated interior & exterior for corrosion resistance.? Choice of bronze or rubber faced disc? O-ring sealed stuffing box? 2" thru 12" sizes---200 psig (1400 kPa/14 barg) maximum working pressure, 400 psig (2800 kPa/28 barg) test pressure? Certified to ANSI/NSF 61? Meets all applicable parts of ANSI/AWWA C508 Standard? Flanged end dimensions and drilling comply with ANSI B16.1, class 125? Iron body, bronze mounted (IBBM)? For vertical or horizontal installation? Epoxy coated interior & exterior for corrosion resistance.? O-ring sealed stuffing box? Adjustable weight or spring to control opening and closing of clapper ? 14" thru 36" sizes---150 psig (1100 kPa/11 barg) maximum working pressure, 300 psig (2100 kPa/21 barg) test pressure? Certified to ANSI/NSF 61? Non-slam, flexible disc set at 45 degree angle reduces potential for water hammer.? EDPM encapsulated steel disc, reinforced with nylon fabric. ? Epoxy coated interior & exterior for corrosion resistance.? 2" thru 24" sizes---250 psig (1725 kPa/17 barg) maximum working pressure, 500 psig (3450 kPa/35 barg) test pressure? Certified to ANSI/NSF 61Flexible Disc13.2Rev. 4-14 Shaded area indicates changes2"-12" SWING TYPE GRAVITY OPERATED CHECK VALVES – FL. X FL.? Catalog number--- A-2600-06BB flanged ends, with bronze disc facing A-2602-06B1 flanged ends, with rubber disc facing? Sizes – 2", 2-1/2", 3", 4", 6", 8", 10", 12"? Meets all applicable parts of ANSI/AWWA C508 Standard? Epoxy coated interior & exterior for corrosion resistance? Certified to ANSI/NSF 61? Flanged end dimensions and drilling comply with ANSI B16.1? Iron body, bronze mounted (IBBM)? Choice of bronze or rubber disc facing? For horizontal installation only? O-ring sealed stuffing box? Swing type, gravity operated? 200 psig (1400 kPa/14 barg) maximum working pressure, 400 psig (2800 kPa/28 barg) test pressureOptions? PN 10/PN 16 Flange Drilling 4"-12"? Stainless Steel Nuts & Bolts? Tapped Bosses*2"- 6" sizes are cast iron, ASTM A126 Cl. B, 8"- 12" sizes are ductile iron ASTM A536? Material strength ASTM A536 65-45-12 minimumCheck Valve Parts (2011-present)Catalog Part No. Description Material Material StandardC-305 Hinge Plug Brass ANSI B21C-308 Gasket Rubber ASTM D2000, BK 807C-309 Cover Bolt Zinc Coated Steel ASTM A307 Grade BC-310 Washer Brass ANSI B21C-311 Spacer Brass ANSI B21C-312 Disc Nut Brass ANSI B21C-313 Disc Stud Brass ANSI B21C-318 Pin Stainless Steel ASTM A276 Type 304C-319 Test Plug Malleable Iron ASTM A47C-321 Hinge Pin Stainless Steel ASTM A276 Type 304C-327 Body Seat Ring Bronze ANSI B62C-329 Arm Ductile Iron ASTM A536 ?C-331 Cover Cast Iron ASTM A126 Cl. BC-332 Disc Cast Iron ASTM A126 Cl. BC-333 Body Cast Iron ASTM A126 Cl. BRubber Faced Disc PartsC-316 Disc Seat Bolt Stainless Steel ASTM A276 Type 304C-326 Disc Seat Ring Rubber ASTM D2000, BK 807C-328 Seat Holder Cast Iron* ASTM A126 Cl. BBronze Faced Disc PartsC-326 Disc Seat Ring Bronze ANSI B62 Hinge pin and stuffing boxC-309C-319C-308C-331C-329C-333C-312C-318C-313C-310C-332C-316C-328C-326C-327Q QRFFAC-311C-321C-306C-305UUXB Valve body and clapper Rubber faced disc shownRubber faced disc clapper Bronze faced disc clapperA-2600-06BB 13.3Shaded area indicates change Rev. 5-152"-12" SWING TYPE GRAVITY OPERATED CHECK VALVE DIMENSIONS - FL. X FL.*Nominal**All dimensions are in inches. All weights are in pounds and are approximate.Dimension**Size*2" 2-1/2" 3" 4"Q (bore) 2.00 2.50 3.00 4.00R 6.00 7.00 7.50 9.00FF 8.00 8.50 9.50 11.50A 4.94 5.69 6.06 6.88X 5.63 7.13 8.13 9.88B (number and size of bolts) 4--.75 4--.75 4--.75 8--.75UU (bolt circle diameter) 4.75 5.50 6.00 7.50Weight 34 50 60 80Dimension**Size*6" 8" 10" 12"Q (bore) 6.00 8.00 10.00 12.00R 11.00 13.50 16.00 19.00FF 14.00 19.50 24.50 27.50A 8.50 9.94 11.19 13.56X 11.88 16.13 18.38 21.63B (number and size of bolts) 8--.88 8--.88 12--1.00 12--1.00UU (bolt circle diameter) 9.50 11.75 14.25 17.00Weight 151 267 405 611C-309C-319C-308C-331C-329C-333C-312C-318C-313C-310C-332C-316C-328C-326C-327Q QRFFAC-311C-321C-306C-305UUXB13.4Rev. 4-14 Shaded area indicates changes2"-12" SWING TYPE LEVER AND WEIGHT CHECK VALVES – FL. X FL.? Catalog number--- A-2600-6-01BB flanged ends, with bronze disc facing A-2602-6-01B1 flanged ends, with rubber disc facing? Sizes---2", 2-1/2", 3", 4", 6", 8", 10", 12"? Meets all applicable parts of ANSI/AWWA C508 Standard? Epoxy coated interior & exterior for corrosion resistance? Certified to ANSI/NSF 61? Flanged end dimensions and drilling comply with ANSI B16.1, class 125? Iron body, bronze mounted (IBBM)? Choice of bronze or rubber disc facing? For vertical or horizontal installation? O-ring sealed stuffing box? Adjustable weight to control opening and closing of clapper, lever can be installed on either side of valve? 200 psig (1400 kPa/14 barg) maximum working pressure, 400 psig (2800 kPa/28 barg) test pressureOptions? Stainless Steel Nuts & Bolts ? Tapped Bosses? Allen Bradley Limit Switch ? PN 10/PN 16 Flange Drilling 4"-12"A-2600-6-01BB*2"- 6" sizes are cast iron, ASTM A126 Cl. B, 8"- 12" sizes are ductile iron ASTM A536? Material strength ASTM A536 65-45-12 minimumCheck Valve Parts (2011-present)Catalog Part No. Description Material Material StandardC-301 Retaining Plug Brass ANSI B21C-306 O-ring C Rubber ASTM D2000, BK 707C-307 O-ring B Rubber ASTM D2000, BK 707C-308 Gasket Rubber ASTM D2000, BK 807C-309 Cover Bolt Zinc Coated Steel ASTM A307 Grade BC-310 Washer Brass ANSI B21C-311 Spacer Brass ANSI B21C-312 Disc Nut Brass ANSI B21C-313 Disc Stud Brass ANSI B21C-314 Snap Ring Stainless Steel ASTM A276 Type 420C-315 Weight Bolt & Nut Zinc Coated Steel ASTM A307 Grade BC-318 Pin Stainless Steel ASTM A276 Type 304C-319 Test Plug Malleable Iron ASTM A47C-320 Key Stainless Steel ASTM A276 Type 304C-321 Hinge Pin Stainless Steel ASTM A276 Type 304C-322 Weight Arm Ductile Iron ASTM A536 ?C-323 Bolt & Nut Zinc Coated Steel ASTM A307 Grade BC-325 Seat Nut Brass ANSI B21C-327 Body Seat Ring Bronze ANSI B62C-329 Arm Ductile Iron ASTM A536 ?C-330 Weight Cast Iron ASTM A126 Cl. BC-331 Cover Cast Iron ASTM A126 Cl. BC-332 Disc Cast Iron ASTM A126 Cl. BC-333 Body Cast Iron ASTM A126 Cl. BRubber Faced Disc PartsC-316 Disc Seat Bolt Stainless Steel ASTM A276 Type 304C-326 Disc Seat Ring Rubber ASTM D2000, BK 807C-328 Seat Holder Cast Iron* ASTM A126 Cl. BBronze Faced Disc PartsC-326 Disc Seat Ring Bronze ANSI B62Q QRFFAC-311C-320C-321C-323C-322C-330C-315C-301C-306C-314C-307C-325C-306UUX2BPC-309C-319C-308C-331C-329C-333C-312C-318C-313C-310C-332C-316C-328C-326C-327X1 Hinge pin and stuffing box Valve body and clapper Rubber faced disc shownRubber faced disc clapper Bronze faced disc clapperLever assembly and weight13.5Shaded area indicates change Rev. 2-112"-12" SWING TYPE LEVER AND WEIGHT CHECK VALVE DIMENSIONS-FL.X FL. *Nominal**All dimensions are in inches. All weights are in pounds and are approximate.Dimension**Size*2" 2-1/2" 3" 4"Q (bore) 2.00 2.50 3.00 4.00R 6.00 7.00 7.50 9.00FF 8.00 8.50 9.50 11.50X1 5.13 5.13 6.31 7.13X2 2.81 3.56 4.06 4.94A 4.31 5.69 6.06 6.88P (hinge pin diameter) .38 .38 .50 .50B (number and size of bolts) 4--.75 4--.75 4--.75 8--.75UU (bolt circle diameter) 4.75 5.50 6.00 7.50Weight 35 51 67 91Dimension**Size*6" 8" 10" 12"Q (bore) 6.00 8.00 10.00 12.00R 11.00 13.50 16.00 19.00FF 14.00 19.50 24.50 27.50X1 8.69 10.88 12.25 14.38X2 5.94 8.06 9.19 10.81A 8.50 9.94 11.19 13.56P .75 .88 1.00 1.13B (number and size of bolts) 8--.88 8--.88 12--1.00 12--1.00UU (bolt circle diameter) 9.50 11.75 14.25 17.00Weight 164 282 420 638Q QRFFAC-311C-320C-321C-323C-322C-330C-315C-301C-306C-314C-307C-325C-306UUX2BPC-309C-319C-308C-331C-329C-333C-312C-318C-313C-310C-332C-316C-328C-326C-327X113.6Rev. 4-14 Shaded area indicates changes? Meets all applicable parts of ANSI/AWWA C508 Standard? Flanged end dimensions and drilling comply with ANSI B16.1, class 125? Epoxy coated interior & exterior for corrosion resistance? Certified to ANSI/NSF 61? Iron body, bronze mounted (IBBM)? Choice of bronze or rubber disc facing? For vertical or horizontal installation? O-ring sealed stuffing box? Adjustable weight to control opening and closing of clapper? 150 psig (1000 kPa/10 barg) maximum working pressure, 300 psig (2100 kPa/21 barg) test pressureOptions? Spring Kits ? 304 Stainless Steel Nuts & Bolts ? Drain Plug/Flush port ? Braided Teflon Hinge Pin Packing8001 SERIES 14"- 36" SWING TYPE LEVER AND WEIGHT CHECK VALVE-FL.X FL. Catalog Part No. Description Material Material StandardC-250 Cover Cast Iron ASTM A126 CL.BC-251 Cover Gasket Rubber ASTM D2000 AA 7008C-252 Cover Bolt and Nut Zinc Coated Steel ASTM A307 Grade BC-253 Test Plug Malleable Iron ASTM A47C-255 Weight Cast Iron ASTM A126 CL.BC-256 Body Cast Iron ASTM A126 CL.BC-258 O-ring Rubber ASTM D2000C-259 Key Stainless Steel ASTM A276 Type 304C-260 Body Seat Ring Bronze ANSI B62C-262 Weight Bolt Zinc Coated Steel ASTM A307 Grade B14"-16"C-254 Disc Ductile Iron ASTM A536 ?C-257 Weight Arm Zinc Coated Steel ASTM A307 Grade BC-263 Hinge Pin Stainless Steel ASTM A276 Type 304C-264 O-ring Rubber ASTM D2000C-265 Snap Ring Stainless Steel ASTM A276 Type 420C-266 Bushing A Bronze ANSI B62C-267 Bushing B Bronze ANSI B62C-268 End Plate A Bronze ANSI B62C-269 End Plate B Ductile Iron ASTM A536 ?C-270 End Plate Bolt Zinc Coated Steel ASTM A307 Grade B18"-36"C-254 Disc Cast Iron ASTM A126 Class BC-257 Weight Arm Ductile Iron ASTM A536 ?C-271 Gasket Rubber ASTM D2000C-272 Disc Bolt Stainless Steel ASTM A276 Type 304C-273 Retaining Plug Bronze ASTM B21C-274 Clapper Arm Shaft Stainless Steel ASTM A276 Type 304C-275 Seat Nut Bronze ASTM B21C-276 Arm Ductile Iron ASTM A536 ?Rubber Faced Disc PartsC-277 Seat Holder Bolt Stainless Steel ASTM A276 Type 304C-278 Seat Holder Ductile Iron ASTM A536 ?C-279 Disc Seat Ring Rubber ASTM D2000 AA 7008Bronze Faced Disc PartsC-261 Disc Seat Ring Bronze ANSI B62Check Valve PartsCatalog Number - Flanged ends, with bronze disc facing? 14" - 1400-8001BBLW? 16" - 1600-8001BBLW? 18" - 1800-8001BBLW? 20" - 2000-8001BBLW? 24" - 2400-8001BBLW? 30" - 3000-8001BBLW? 36" - 1400-8001BBLWInsetC-264C-259C-255C-268C-251 C-258C-266C-253C-263C-250 C-267C-269C-270C-265C-257C-253C-252C-256C-254C-279C-260C-277C-278 C-260Bronze SeatRubber SeatC-26218"-36" Check ValveInsetBronze SeatRubber Seat C-260C-252 C-250C-251C-276C-272C-277C-278C-260 C-279 C-254 C-256C-262C-255C-257C-253C-275 C-258 C-274C-273C-259C-2711600-8001BBLWFlanged ends, with rubber disc facing? 14" - 1400-8001B1LW? 16" - 1600-8001B1LW? 18" - 1800-8001B1LW? 20" - 2000-8001B1LW ? 24" - 2400-8001B1LW? 30" - 3000-8001B1LW? 36" - 1400-8001B1LWNOTE: 8001 series Valves on this page cannot be adapted with cylinders. Use 9001 series valve if cylinders might be added after the valves are installed.14"-16" Check Valve? Material strength ASTM A536 65-45-12 minimum13.7 Shaded area indicates changes Rev. 5-158001 SERIES 14"- 36" SWING TYPE LEVER AND WEIGHT CHECK VALVE DIMENSIONS-FL.X FL. Dimension**Size*14" 16" 18" 20" 24" 30" 36"Q 14.00 16.00 18.00 20.00 24.00 30.00 36.00R 21.00 23.50 25.00 27.50 32.00 38.75 46.00FF 31.00 36.00 40.00 40.00 48.00 52.50 60.50A 19.31 21.50 24.50 26.38 30.25 36.38 40.00P 1.50 1.50 - - - - -UU (bolt circle diameter) 18.75 21.25 22.75 25.00 29.50 36.00 42.75B (number and size of bolts) 12 – 1.13 16 – 1.13 16 – 1.25 20 – 1.25 20 – 1.38 28 – 1.38 32 – 1.63Weight 1,111 1,450 1,804 2,194 3,076 5,955 7,645*Nominal**All dimensions are in inches. All weights are in pounds and are approximate.RUUQFFPAB14"- 16" Check Valve18"- 36" Check ValveFFQUURAB13.8Rev. 4-14 Shaded area indicates changes2"-12" SWING TYPE LEVER AND SPRING CHECK VALVES WITH FL. X FL.? Catalog number--- A-2600-6-02BB flanged ends, with bronze disc facing A-2602-6-02B1 flanged ends, with rubber disc facing? Sizes---2", 2-1/2", 3", 4", 6", 8", 10", 12"? Meets all applicable parts of ANSI/AWWA C508 Standard? Epoxy coated interior & exterior for corrosion resistance? Certified to ANSI/NSF 61? Flanged end dimensions and drilling comply with ANSI B16.1, class 125? Iron body, bronze mounted (IBBM)? Choice of bronze or rubber disc facing? For vertical or horizontal installation? O-ring sealed stuffing box? Adjustable spring tension to control opening and closing of clapper, lever and spring can be installed on either side of valve? 200 psig (1400 kPa/14 barg) maximum working pressure, 400 psig (2800 kPa/28 barg) test pressureOptions? PN 10/PN 16 Flange Drilling 4"-12" ? Stainless Steel Nuts & Bolts ? Tapped Bosses ? Allen Bradley Limit SwitchA-2600-6-02BB*2"- 6" sizes are cast iron, ASTM A126 Cl. B, 8"- 12" sizes are ductile iron ASTM A536? Material strength ASTM A536 65-45-12 minimumCheck Valve Parts (2011-present)Catalog Part No. Description Material Material StandardC-301 Retaining Plug Brass ANSI B21C-302 Stud Nut & Nut Zinc Coated Steel ASTM A307 Grade BC-303 Arm B Zinc Coated Steel ASTM A36C-306 O-ring C Rubber ASTM D2000, BK 707C-307 O-ring B Rubber ASTM D2000, BK 707C-308 Gasket Rubber ASTM D2000, BK 807C-309 Cover Bolt Zinc Coated Steel ASTM A307 Grade BC-310 Washer Brass ANSI B21C-311 Spacer Brass ANSI B21C-312 Disc Nut Brass ANSI B21C-313 Disc Stud Brass ANSI B21C-314 Snap Ring Stainless Steel ASTM A276 Type 420C-317 Spring Zinc Coated Steel ASTM A307 Grade BC-318 Pin Stainless Steel ASTM A276 Type 304C-319 Test Plug Malleable Iron ASTM A47C-320 Key Stainless Steel ASTM A276 Type 304C-321 Hinge Pin Stainless Steel ASTM A276 Type 304C-322 Weight Arm Ductile Iron ASTM A536 ?C-323 Bolt & Nut Zinc Coated Steel ASTM A307 Grade BC-324 Bolt Zinc Coated Steel ASTM A307 Grade BC-325 Seat Nut Brass ANSI B21C-327 Body Seat Ring Bronze ANSI B62C-329 Arm Ductile Iron ASTM A536 ?C-331 Cover Cast Iron ASTM A126 Cl. BC-332 Disc Cast Iron ASTM A126 Cl. BC-333 Body Cast Iron ASTM A126 Cl. BRubber Faced Disc PartsC-316 Disc Seat Bolt Stainless Steel ASTM A276 Type 304C-326 Disc Seat Ring Rubber ASTM D2000, BK 807C-328 Seat Holder Cast Iron* ASTM A126 Cl. BBronze Faced Disc PartsC-326 Disc Seat Ring Bronze ANSI B62Q QRFFAUUBC-311C-320C-321C-323C-322C-324C-317C-303C-302C-309C-319C-308C-331C-329C-333C-312C-318C-313C-310C-332C-301C-306C-314C-307C-325C-306C-316C-328C-326C-327PX2X1 Hinge pin and stuffing box Valve body and clapper Rubber faced disc shownRubber faced disc clapper Bronze faced disc clapperSpring lever assembly13.9 Shaded area indicates changes Rev. 5-152"-12" SWING TYPE LEVER AND SPRING CHECK VALVE DIMENSIONS-FL. X FL.*Nominal**All dimensions are in inches. All weights are in pounds and are approximate.Q QRFFAUUBC-311C-320C-321C-323C-322C-324C-317C-303C-302C-309C-319C-308C-331C-329C-333C-312C-318C-313C-310C-332C-301C-306C-314C-307C-325C-306C-316C-328C-326C-327PX2X1Dimension**Size*2" 2-1/2" 3" 4"Q (bore) 2.00 2.50 3.00 4.00R 6.00 7.00 7.50 9.00FF 8.00 8.50 9.50 11.50X1 5.13 5.13 6.31 7.13X2 2.81 3.56 4.06 4.94A 4.31 5.69 6.06 6.88P (hinge pin diameter) .38 .38 .50 .50B (number and size of bolts) 4--.75 4--.75 4--.75 8--.75UU (bolt circle diameter) 4.75 5.50 6.00 7.50Weight 35 51 62 83Dimension**Size*6" 8" 10" 12"Q (bore) 6.00 8.00 10.00 12.00R 11.00 13.50 16.00 19.00FF 14.00 19.50 24.50 27.50X1 8.69 10.88 12.25 14.38X2 5.94 8.06 9.19 10.81A 8.50 9.94 11.19 13.56P .75 .88 1.00 1.13B (number and size of bolts) 8--.88 8--.88 12--1.00 12--1.00UU (bolt circle diameter) 9.50 11.75 14.25 17.00Weight 153 272 410 61813.10Rev. 4-14 Shaded area indicates changes8001 SERIES 14"-36" SWING TYPE LEVER AND SPRING CHECK VALVES WITH FL. X FL.? Meets all applicable parts of ANSI/AWWA C508 Standard? Flanged end dimensions and drilling comply with ANSI B16.1, class 125? Epoxy coated interior & exterior for corrosion resistance? Certified to ANSI/NSF 61? Iron body, bronze mounted (IBBM)? Choice of bronze or rubber disc facing? For vertical or horizontal installation? O-ring sealed stuffing box? Adjustable spring tension to control opening and closing of clapper? 150 psig (1000 kPa/10 barg) maximum working pressure, 300 psig (2100 kPa/21 barg) test pressureOptions? Spring Kits ? 304 Stainless Steel Nuts & Bolts? Drain Plug/Flush port ? Braided Teflon Hinge Pin Packing Check Valve PartsCatalog NumberFlanged ends, with bronze disc facing? 14" - 1400-8001BBLS? 16" - 1600-8001BBLS? 18" - 1800-8001BBLS? 20" - 2000-8001BBLS? 24" - 2400-8001BBLS? 30" - 3000-8001BBLS? 36" - 1400-8001BBLSFlanged ends, with rubber disc facing? 14" - 1400-8001B1LS? 16" - 1600-8001B1LS? 18" - 1800-8001B1LS? 20" - 2000-8001B1LS ? 24" - 2400-8001B1LS? 30" - 3000-8001B1LS? 36" - 1400-8001B1LSNOTE: 8001 series Valves on this page cannot be adapted with cylinders. Use 9001 series valve if cylinders might be added after the valves are installed.8001 Series1600-8001BBLW14"-16" Check Valve18"-36" Check ValveCatalog Part No. Description Material Material StandardC-250 Cover Cast Iron ASTM A126 CL.BC-251 Cover Gasket Rubber ASTM D2000 AA 7008C-252 Cover Bolt and Nut Zinc Coated Steel ANSI B18.2.1C-253 Test Plug Iron ASTM A47C-255 Weight Cast Iron ASTM A126 CL.BC-256 Body Cast Iron ASTM A126 CL.BC-258 O-ring Rubber ASTM D2000C-259 Key Stainless Steel ASTM A276 Type 304C-260 Body Seat Ring Bronze ANSI B62C-261 Disc Seat Ring Bronze ANSI B62C-280 Spring Plated Steel ASTM A36C-281 Bolt Zinc Coated Steel ASTM A307 Grade BC-282 Straight Bolt Stainless Steel ASTM A276 Type 304C-283 Bracket Cold Rolled Steel ASTM A1008C-284 Nut Zinc Coated Steel ASTM A307 Grade B14"-16"C-254 Disc Ductile Iron ASTM A536 ?C-257 Weight Arm Zinc Coated Steel ASTM A307 Grade BC-263 Hinge Pin Stainless Steel ASTM A276 Type 304C-264 O-ring Rubber ASTM D2000C-265 Snap Ring Stainless Steel ASTM A276 Type 420C-266 Bushing A Bronze ANSI B62C-267 Bushing B Bronze ANSI B62C-268 End Plate A Bronze ANSI B62C-269 End Plate B Ductile Iron ASTM A536 ?C-270 End Plate Bolt Zinc Coated Steel ASTM A307 Grade B18"-36"C-254 Disc Cast Iron ASTM A126 Class BC-257 Weight Arm Ductile Iron ASTM A536 ?C-271 Gasket Rubber ASTM D2000C-272 Disc Bolt Stainless Steel ASTM A276 Type 304C-273 Retaining Plug Bronze ASTM B21C-274 Clapper Arm Shaft Stainless Steel ASTM A276 Type 304C-275 Seat Nut Bronze ASTM B21C-276 Arm Ductile Iron ASTM A536 ?Rubber Faced Disc PartsC-277 Seat Holder Bolt Stainless Steel ASTM A276 Type 304C-278 Seat Holder Ductile Iron ASTM A536 ?C-279 Disc Seat Ring Rubber ASTM D2000 AA 7008Bronze Faced Disc PartsC-261 Disc Seat Ring Bronze ANSI B 62InsetC-260Bronze SeatRubber SeatC-264C-268C-251 C-258C-266C-253C-252 C-253 C-257C-256C-254C-279C-260C-277C-278C-280C-263C-250 C-267C-269C-270C-265C-284C-282C-281C-283InsetBronze SeatC-260Rubber SeatC-260 C-279C-278C-256C-260C-277C-272C-276C-251C-252C-250C-275C-257C-258C-259 C-253 C-274C-273C-271C-280C-284C-282C-281C-283? Material strength ASTM A536 65-45-12 minimum13.11Shaded area indicates change Rev. 5-158001 SERIES 14"-36" SWING TYPE LEVER AND SPRING CHECK VALVES WITH FL. X FL.Dimension**Size*14" 16" 18" 20" 24" 30" 36"Q 14.00 16.00 18.00 20.00 24.00 30.00 36.00R 21.00 23.50 18.00 27.50 32.00 38.75 46.00FF 31.00 36.00 36.00 39.50 45.00 52.50 60.50A 19.32 21.50 24.50 26.38 30.25 36.38 40.00UU (bolt circle diameter) 18.75 21.25 22.75 25.00 29.50 36.00 42.75B (number and size of bolts) 12 – 1.13 16 – 1.13 16 – 1.25 20 – 1.25 20 – 1.38 28 – 2.13 32 – 2.38Weight 1,073 1,387 1,738 2,128 3,010 5,836 7,526*Nominal**All dimensions are in inches. All weights are in pounds and are approximate.18"-36" Check ValveFFRUUQABFFRUU QAB13.12Rev. 4-14 Shaded area indicates changesMUELLER® FLEXIBLE DISC CHECK VALVE Check Valve PartsModel 851A? Sizes –2", 2-1/2", 3", 4", 6", 8", 10", 12", 14", 16", 18", 20", 24"? Ductile iron body and cover? Epoxy coated interior & exterior for corrosion resistance? Certified to ANSI/NSF 61? Stainless steel bolts ? Buna encapsulated steel flexible disc with nylon fabric reinforcement ? Vertical or horizontal (flow upwards) installation? 250 psig (1725 kPa/17 barg) maximum working pressure, 500 psig (3450 kPa/35 barg) test pressureOptions? EPDM discPart NumberDescription Material Material Standard1 Body Ductile Iron ASTM A536 ?2 Bonnet Ductile Iron ASTM A536 ?3 Gasket Rubber ASTM D2000 BK 8074 Disc Steel/Buna or EPDMASTM A36/D20005 Bonnet Bolts Steel SAE Grade 56 Interior Lining Epoxy -7 Plug Ductile Iron ASTM A536 ?Valve Size* A B C D2" 8.00 2.00 3.38 8.382-1/2" 8.50 2.50 3.38 8.383" 9.50 3.00 3.88 9.004" 11.50 4.00 4.63 9.635" 13.75 5.00 5.13 10.256" 15.00 6.00 5.88 11.008" 19.50 8.00 7.63 13.7510" 24.50 10.00 9.88 16.0012" 27.50 12.00 11.38 18.5014" 31.00 14.00 13.38 20.5016" 32.00 16.00 15.38 23.5018" 36.00 18.00 17.13 25.2520" 40.00 20.00 19.13 29.2524" 18.00 24.00 22.75 32.75*Nominal**All dimensions are in inches. All weights are in pounds and are approximate.? Material strength ASTM A536 65-45-12 minimumValve Size* Weight**2" 222-1/2" 303" 404" 715" 1206" 1258" 22210" 37212" 51414" 69616" 98718" 1,34020" 1,67024" 2,147Dimensions**13.13Shaded area indicates change Rev. 4-14MUELLER® FLEXIBLE DISC CHECK VALVE WITH MJ X MJCheck Valve PartsModel 850MJ? Sizes –2", 2-1/2", 3", 4", 6", 8", 10", 12", 14", 16", 18", 20", 24"? Ductile iron body and cover? Epoxy coated interior & exterior for corrosion resistance? Certified to ANSI/NSF 61? Stainless steel bolts ? Buna encapsulated steel flexible disc with nylon fabric reinforcement ? Vertical or horizontal (flow upwards) installation? 250 psig (1725 kPa/17 barg) maximum working pressure, 500 psig (3450 kPa/35 barg) test pressureOptions? EPDM discABCD12 3 4567Standard mechanical joint ends comply with ANSI/AWWA C111.Valve Size A B C D3 13 3 3.90 94 14.96 4 4.65 9.755 – 5* – 10.25*6 19.3 6 6.22 118 23.81 8 7.80 13.7510 28.34 10 10.20 1612 33 12 11.38 18.514 35 14 12.00 20.516 37 16 13.58 23.518 – 18* – 25.25*20 – 20* – 29.25*24 – 24* – 32.75*Part Number Description Material ASTM Designation1 Body Ductile Iron ASTM A-536 ?2 Bonnet Ductile Iron ASTM A-536 ?3 Disc Steel / BUNA-N or EPDM ASTM A-36/D-2000 BK 8074 Gasket Rubber (BUNA N) D 2000 BK 8075 Bonnet Bolts Stainless steel MJ - Type 3046 Interior Lining Epoxy -7* Plug Ductile Iron ASTM A-536 ?8 Exterior Coating MJ - epoxy / FL - primer -DimensionsDimension "D" clearance required to remove access cover? Material strength ASTM A536 65-45-12 minimum13.14Rev. 2-11 Shaded area indicates changes1959-2010 — 2-1/2"-12" SWING TYPE CHECK VALVES WITH FL. X FL.Rubber faced disc and clapper 2-1/2"-12" Hinge pin and stuffing box††4"-12"BRONZESEATSC-53C-58C-94C-86C-91C-95 C-91C-49C-88 C-42Lever Assembly2-1/2"-12"Hinge pin and stuffing box†2-1/2", 3"C-50C-57C-56C-54C-55C-105 C-106C-101C-102C-103BRONZESEA TSC-53C-58C-94C-84C-42C-86C-95C-49C-88 C-91C-73Valve body and clapper 2-1/2"-12" Metal faced disc shownValve body and clapper 2-1/2"-12" Metal faced disc shownSpring Lever Assembly2-1/2"-12"Hinge pin and stuffing box†2-1/2", 3"Catalog Part Number Description MaterialMaterial StandardC-42 Cover Gasket Cloth inserted Rubber ASTM D2000C-58 Seat Ring Bronze ASTM B584C-60 2-1/2"–3" Hinge Plug and Pin (1 pc.) Bronze ASTM B138C-63 Body O-ring Rubber ASTM D2000C-73 Spring SteelC-86 2-1/2"–3" Stuffing Box Bronze ASTM B126C-88 Clapper Arm Bronze ASTM B584C-91 Hinge Pin Stainless Steel ASTM A276C-94 Hinge Pin O-ring Rubber ASTM D2000C-95 Body O-ring Rubber ASTM D2000C-101 Hinge Pin Stainless Steel ASTM A276 Type 303C-102 Hinge Pin O-ring (small) Rubber ASTM D2000C-103 Hinge Pin O-ring (large) Rubber ASTM D2000C-104 Snap Ring Stainless SteelC-105 Stuffing Box O-ring Rubber ASTM D2000C-106 Stuffing Box Bronze ASTM B138Metal Faced Disc PartsC-48 Stud Nut Bronze ASTM B62C-49 Disc Stud Bronze ASTM B21C-53 Disc* Cast Iron ASTM A126 CL.BRubber Faced Disc PartsC-50 Disc Stud Bronze ASTM B21C-54 Disc** Cast Iron ASTM A126 CL.BC-55 Rubber Disc Facing Rubber ASTM D2000C-56 Retainer Washer Bronze ASTM B584C-57 Retainer Nut Bronze ASTM B62Check Valve Parts (1959-2010)Lever and WeightLever and SpringGravity, Lever and Weight, Lever and SpringC-63C-58C-42C-49BRONZESEA TSC-53C-60C-88 Valve body and clapper 2-1/2"-12" Metal faced disc shown Hinge pin and stuffing box†2-1/2", 3"Gravity Operated*Gravity Operated Shown