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NO.: FORM NO.: 2178 BRYAN BOILERS DR SERIES FORCED DRAFT STEAM BOILERS REVERSE CONSTRUCTION Form # >> 2178 Date >> 2/20/04 BOILER MODEL DR250 DR350 DR450 DR650 DR850 INPUT MBH 250 350 450 650 850 (KW) 73.2 102.5 131.8 190.4 249.0 OUTPUT MBH 200 280 360 520 680 (KW) 58.6 82.0 105.5 152.4 199.2 BOILER HORSEPOWER HP 6 8 10 15 20 (KW) 58.6 82.0 98.0 147.0 196.0 TUBE DIAMETER INCHES 1.00 1.00 1.00 1.00 1.00 (CM) 2.54 2.54 2.54 2.54 2.54 NUMBER OF TUBES 18 18 18 29 29 PRESSURE VESSEL VOLUME GAL 31 31 31 45 45 (L) 117.3 117.3 117.3 170.3 170.3 HEATING SURFACE SQ FT 66 66 66 103 103 (SQ M) 6.1 6.1 6.1 9.6 9.6 STEAM OUTPUT* LBS/HR 206 288 371 536 701 (KG/HR) 93.4 130.6 168.3 243.1 318.0 OPERATING WEIGHT LBS 1,408 1,408 1,408 2,025 2,025 (KG) 638.9 638.9 638.9 918.6 918.6 SHIPPING WEIGHT LBS 1,150 1,150 1,150 1,650 1,650 (KG) 521.6 521.6 521.6 748.4 748.4 RELIEF VALVE TYPICAL - 15 PSIG (103.4 KPA) QUANTITY A v a N i o l t a b l e (1) 13-213-08 (1) 13-213-08 (1) 13-213-08 (1) 13-213-08 SIZE INCHES 1-1/4 x 1-1/4 1-1/4 x 1-1/4 1-1/4 x 1-1/4 1-1/4 x 1-1/4 (CM) 3.175 x 3.175 3.175 x 3.175 3.175 x 3.175 3.175 x 3.175 CAPACITY-TOTAL MBH 1,200 1,200 1,200 1,200 (KW) 351.6 351.6 351.6 351.6 RELIEF VALVE TYPICAL - 150 PSIG (1034.0 KPA) QUANTITY (1) 6021DC01 (1) 6021DC01 (1) 6021DC01 (1) 6021DC01 (1) 6021DC01 SIZE INCHES 1/2 x 3/4 1/2 x 3/4 1/2 x 3/4 1/2 x 3/4 1/2 x 3/4 (CM) 1.27x1.905 1.27x1.905 1.27x1.905 1.27x1.905 1.27x1.905 CAPACITY-TOTAL MBH 925 925 925 925 925 (KW) 271.0 271.0 271.0 271.0 271.0 * Output based on nominal 80% of input. Actual combustion efficiencies will be higher and fuel dependent....

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