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s • <br /> Characteristics Typical Applications <br /> Maximum working pressure 175 PSI RP devices are used to protect against high hazard (toxic) <br /> Hydrostatic test pressure 350 PSI fluids in water services to Industrial plants, hospitals, \/ <br /> Temperature range 32°F to 1400F morgues, mortuaries, and chemical plants. They are also <br /> Fluid water used in irrigation systems, boiler feed, water lines and other <br /> End detail 1-'/2"and 2 Threaded ANSI B2.1 installations requiring maximum protection. <br /> 2-'h"-10 ns re Flanged ANSI 876.1 4 g p <br /> Main valve body Bronze ASTM,B-62(1-Y2"and 2") <br /> Gray iron ASTM A-126(2-''/2"-10") <br /> epoxy coated internal <br /> Main valve trim Bronze ASTM B-61 <br /> Relief valve body and trim Bronze ASTM B-61 <br /> Elastomers NitrileASTMD-2000 Dimensions and Weights <br /> Diaphragms:Nitrile,fabric reinforced SHIPPING <br /> Springs Stainless Steel,300 series <br /> SIZE A B C D E WT.(LBS.) <br /> Installation 1-'/2" 25-Y." 7" 9" 5�/." 16-'3/,6" Iso <br /> 2" 28-1/,,t 12" 10" 6-7/." 18-'/m" 180 <br /> Reduced Pressure Backflow Preventers should bei <br /> 2-'/2" 37-3/,e" 12-'h" 10-72" 7-1/2" 22-'66' 270 <br /> �w,,- , <br /> with minimum clearance of 12" between port and floo Ypy'3 111-'v,e" 111" 11-'12' 8-v.e" 25 9/fi" 305 <br /> 4" 50-'/W 17-3/e" 12-'/2" 11" 32-5/16" 490 <br /> grade. They must be installed where any discharge will not 6" 59-"Ae" 21-'A• 14" 14" 36?/•6" 860 <br /> be objectionable and can be positively drained away. They B" 69-3/,6" 26" 15' 18" 46-'Aii" 1250 <br /> should be installed where easily accessible for testing and 10" ea-3/W 30" 1s" zz" se-'/W 1720 <br /> maintenance and must be protected from freezing. Larger <br /> sizes should have support blocks to prevent flange damage. <br /> Thermal water expansion and/or waterhammer down stream <br /> of the Backflow Preventer can cause excessive pressure. <br /> Excessive pressure situations should be eliminated to avoid <br /> possible damage to the system and device. <br /> Side View C <br /> FEBCO Protective B <br /> Model 825 Enclosure <br /> F <br /> Support(3" <br /> 30"Max and larger) D <br /> i <br /> Water Meter 12"Min. <br /> ter+--recceh IL .y .--6.. <br /> A E <br /> SS 825 10" DATE 6/113 C <br /> '� FEBL'O <br /> Febco Sales, P.O. Box 8070, Fresno, California 93747, (209) 252-0791 Telex: 355-336-FNO <br />