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HomeMy WebLinkAboutES-F-LF850L febco 4 backflow.pdf FEBCO product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measure-ments, please contact FEBCO. FEBCO reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on FEBCO products previously or subsequently sold. Job Name ––––––––––––––––––––––––––––––––––––––––––– Contractor –––––––––––––––––––––––––––––––––––––––––––– Job Location ––––––––––––––––––––––––––––––––––––––––– Approval ––––––––––––––––––––––––––––––––––––––––––––– Engineer –––––––––––––––––––––––––––––––––––––––––––– Contractor’s P.O. No. –––––––––––––––––––––––––––––––––– Approval –––––––––––––––––––––––––––––––––––––––––––– Representative –––––––––––––––––––––––––––––––––––––––– MasterSeries® LF850 Double Check Valve Assemblies Size: 21⁄2" - 10" The FEBCO MasterSeries LF850 Double Check Assembly is specifically designed to protect against possible backpressure and backsiphonage conditions for non-health hazard (i.e., pollutant) application in accordance with Local Governing Water Utility Code. This Backflow Assembly is primar-ily used on potable drinking water systems where Local Governing Code mandates protection from non-potable quality water being pumped or siphoned back into the potable water system. The LF850 features Lead Free* construction to comply with low lead installation requirements. The Lead Free* Double Check Assemblies shall comply with state codes and standards, where applicable, requiring reduced lead content. Features • Inline Serviceable Assembly • No Special Tools Required for Servicing • Captured Modular Spring Assembly • Reversible & Replaceable Discs • Field Replaceable Seats • Ductile Iron Valve Body Design • Stainless Steel Check Components • Winterization feature with disc retainers and valve body drain ports • Clapper Check Assembly • Commonality between 1st & 2nd Check Components • Captured O-ring Design Model LF850 Double Check Assembly LEAD FREE* * The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight. Specifications The FEBCO MasterSeries LF850 Double Check Valve Assembly shall be installed on the potable water supply and at each point of cross-connection to protect against possible backpressure and backsiphonage conditions for non-health hazard (i.e., pollutant) applications. The assembly shall consist of a main line valve body composed of two (2) independently acting approved clapper style check modules with replaceable seats and disc rubbers. Servicing of both check modules does not require any special tools and are accessed through independently top entry covers. This assembly shall be fitted with AWWA Compliant inlet/outlet resilient seated shutoff valves; when used on a Fire-Sprinkler application, the assembly shall be fitted with approved UL/FM inlet/outlet resilient seated shutoff valves and contain four (4) properly located resilient seated test cocks as specified by AWWA Standard C510. Flow and pressure loss performance parameters shall meet the requirements of AWWA Standard C510. SPECIFICATION SHEET NOTICE This information is not intended to replace the product installation and safety information available or the experience of a trained product installer. Please refer to the product installation and safety instructions for further information. ES-F-LF850L Options - Suffix OSY: UL/FM Approved OS&Y Gate Valves (ANSI/AWWA C515 Compliant) NRS: Non-Rising Stem Gate Valves (ANSI/AWWA C509 Compliant) LG: Less Shut-off valves; This is NOT an APPROVED ASSEMBLY Example Ordering Descriptions: 4” LF850-OSY - Valve Assembly fitted with OS&Y Shutoff Valves 4” LF850-NRS - Valve Assembly fitted with NRS Shutoff Valves Assembly Flow Orientation: Horizontal & Vertical Up (21⁄2" – 10") - Approved by FCCCHR-USC, ASSE, cULus, FM, IAPMO, and CSA Approvals – Standards • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC) • ASSE 1015 Listed • **UL Classified (US & Canada) • **FM Approved • IAPMO • CSA Listed • AWWA Standard C510 Compliant • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange ** Assembly configured with UL/FM Approved OS&Y RW Gate Valves. Less gate valve assemblies are not UL/FM approved configurations. 1015 Materials Below is a general materials list of the Model LF850. All assemblies size 21⁄2" through 10" is similar in materials and construction. Please contact your local FEBCO Representative if you require further information. Main Valve Body: Ductile iron Grade 65-45-12 Coating: Fusion epoxy coated internal and external AWWA C550 Shutoff Valves: NRS resilient wedge gate valves AWWA C509 (Standard) OSY resilient wedge gate valves AWWA C515 (UL/FM) Check Seats: Stainless Steel Disc Holder: Stainless Steel Elastomer Disc: Silicone Spring: Stainless Steel Clamp: AWWA C606 (10" Only) Test Cock #1 Test Cock #2 First SpringAssembly First CheckAssembly Second SpringAssembly Second CheckAssemblyShutoff Vavle #1 Shutoff Valve #2 Test Cock #3 Test Cock #4 Shutoff Valve #1 Shutoff Valve #2 Test Cock #3 Test Cock #4 Test Cock #2Test Cock #1 First Check Assembly First Spring Assembly Second Spring Assembly Second Check Assembly Pressure – Temperature Max. Working Pressure: 175psi (12.1 bar) Min. Working Pressure: 10psi (0.7 bar) Hydrostatic Test Pressure: 350psi (24.1 bar) Hydrostatic Safety Pressure: 700psi (48.3 bar) Temperature Range: 33°F - 140°F (0.5°C - 60°C) Continuous ** ** B64.5 Dimensions & Weights Below are the nominal dimensions and physical weights for the Model LF850 size 21⁄2” through 10”. Allowances must be made for normal manufacturing tolerances. Please visit our website to download a copy of this product’s installation instructions, or contact your local FEBCO Representative for more information. LF850 SIZE DIMENSIONS WEIGHT**** A B C D**E***F G NRS OSY in. in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg. lbs. kg. 21⁄2 403⁄4 1035 25 1⁄2 648 10 254 12 5⁄8 321 16 3⁄8 416 4 1⁄2 114 7 1⁄8 181 226 103 230 104 3 41 7⁄8 1064 25 5⁄8 651 10 254 12 7⁄8 327 22 1⁄4 565 4 1⁄2 114 7 3⁄8 187 252 114 256 116 4 46 1⁄4 1175 28 711 10 1⁄8 257 14 3⁄8 365 23 1⁄4 591 5 1⁄2 140 8 1⁄8 206 311 141 323 147 6 56 1422 34 3⁄4 883 12 3⁄4 324 18 7⁄8 479 30 1⁄8 765 6 1⁄2 165 9 7⁄8 251 478 217 498 226 8 65 1651 41 3⁄4 1061 15 5⁄8 397 23 1⁄2 597 37 3⁄4 959 7 178 11 1⁄8 283 781 354 809 367 10 72 5⁄8 1845 46 3⁄8 1178 15 5⁄8 397 27 1⁄2 699 48 1219 9 229 12 3⁄8 314 1179 535 1217 552 ** Indicates nominal dimensions with NRS Gate Valves *** Indicates nominal dimensions with OSY Gate Valves (Full Open Position) **** Indicates weight of complete Backflow Assemblies with specified Gate Valves G H A B CC D E***D** A G F B C A Watts Water Technologies Company USA: Tel: (559) 441-5300 • Fax: (559) 441-5301 • www.FEBCOonline.com Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.FEBCOonline.ca ES-F-LF850L 1330 © 2013 FEBCO Performance Flow capacity chart identifies valve performance based upon rated water Velocity up to 20fps • Maximum service flow rate is determined by maximum rated Velocity of 7.5fps. • AWWA Manual M-22 (Appendix C) recommends that the maximum water Velocity in the services be not more than 10fps. • UL flow rate is determined by typically rated Velocity of 15 feet/sec. HEADLoSS21⁄2"3" 21⁄2" & 3" kPa psi 103 15 69 10 34 5 0 0 0 80 160 240 320 400 gpm 0 304 606 910 1210 1520 lpm 4" & 6" kPa psi 103 15 69 10 34 5 0 0 0 400 800 1200 1600 2000 gpm 0 1520 3040 4540 6060 7600 lpmHEADLoSS 8" & 10" kPa psi 103 15 69 10 34 5 0 0 0 1000 2000 3000 4000 5000 gpm 0 3800 7600 11400 15140 19000 lpmHEADLoSS