BACKFLOW PREVENTERS - Conbraco Industries - #5

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5 www.apollovalves.com Double Check Valve Backflow Preventers TOP ENTRY DOUBLE CHECK VALVE ASSEMBLY The Apollo DC-40 Series Top Entry Double Check Valve Assembly is designed to protect against backflow from a cross-connection of non-health hazard pollutant. Within the assembly are two mechanically independent, spring-loaded poppet type check valves set in an integral cast bronze body. Both check valves are designed at an inclined angle upward from horizontal centerline of the assembly, and all test cocks are mounted at the top to assure easy access during repair and maintenance when unit is installed in a pit or tight places. OPERATION During normal flow conditions, the two poppet check valves are held off their seats, supplying water downstream. Each check valve is designed to maintain a minimum of 1 psi across the valve during normal operation. Should the downstream pressure increase to within 1 psi of supply pressure, both check valves will close to prevent a backflow condition. FEATURES • Top access for testing, fast repair and maintenance • Corrosion resistant • Low head loss • Interchangeable poppets and springs • Replaceable seats & Reversible Seat Discs • Approved for horizontal installations • 5 year, domestic warranty • CSA • USC FCCCHR • AWWA C-510 • ASSE 1015 • Comes standard with Apollo® full port ball valves with stainless steel handles • Maximum working pressure 175 psig • Temperature range 33°F-180°F • Designed, manufactured, assembled and tested in South Carolina, USA 40 [X] - 1 X X - TXX Y-STRAINER 0-Standard 1-w/ Y-strainer (1-1/4”-2”shipped loose) SHUT-OFF VALVES 1-less ball valves (UL Classified) 2-w/ball valves (Standard) 4-w/union ball valves SIZE 4-3/4" 5-1" 6-1-1/4" 7-1-1/2" 8-2" Sizes 3/4", 1", 1-1/4", 1-1/2", 2" DC-40 Series MATERIALS Body and covers Bronze Springs Stainless Steel Poppets Glass-Filled Celcon Seat discs Silicone Rubber Replaceable seats Glass-Filled PPO Fasteners Stainless Steel Ball valve handles Stainless Steel OPTIONS (CAN BE COMBINED) F-SAE threaded test cocks LL-locking lever handles (1-1/4”, 1-1/2”, 2”) Example: 40-104-T4LL = 3/4” double check valve assembly with union ball valves with locking lever handles ORDERING CODE - Dimensions - in(mm) - Weights - lbs.(kg) Model No. DC4034 DC401 DC40114 DC40112 DC402 Ordering No. 40-104-T 40-105-T 40-106-T 40-107-T 40-108-T Body Size 3/4” (20) 1” (25) 1-1/4” (32) 1-1/2” (40) 2” (50) A 13 (330) 14-3/4 (375) 20-3/4 (525) 21-3/8 (545) 23-1/8 (590) B 7-1/4 (185) 7-1/4 (185) 12-3/8 (315) 12-3/8 (315) 12-3/8 (315) C 4-5/16 (110) 4-5/16 (110) 6-1/8 (155) 6-1/8 (155) 6-1/8 (155) D 1-5/8 (41) 1-7/8 (48) 2-3/16 (56) 2-5/8 (67) 3 (75) E 2-7/16 (62) 2-7/16 (62) 3-13/16 (97) 3-13/16 (97) 3-13/16 (97) F 5-7/16 (138) 5-7/16 (138) 6-3/8 (162) 6-3/8 (162) 6-3/8 (162) G 13/16 (20) 13/16 (20) 1-3/8 (35) 1-3/8 (35) 1-3/8 (35) Test Cocks 1/8 x 1/4 NPT 1/8 x 1/4 NPT 1/4 x 1/4 NPT 1/4 x 1/4 NPT 1/4 x 1/4 NPT Net Weight 8.8 (4.0) 9.5 (4.3) 23.2 (10.5) 25.7 (11.7) 31.5 (14.3) Shipping Weight 10.1 (4.6) 10.8 (4.9) 25.9 (12.0) 28.8 (13.1) 35.5 (16.1) 40 - Standard 40LF - Lead Free SEE PAGE 56 FOR FLOW CURVES