Bryan Boilers DR250 Dr Series Forced Draft Steam Boilers Reverse Construction, Boiler Model

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	(1) 13-213-08	(1) 13-213-08	(1) 13-213-08	(1) 13-213-08
			v
SIZE	INCHES		a	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
		N	i
	(CM)	o	l	3.175 x 3.175	3.175 x 3.175	3.175 x 3.175	3.175 x 3.175
		t	a
CAPACITY-TOTAL	MBH		b	1,200	1,200	1,200	1,200
			l
	(KW)		e	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.