Scotch Marine fire tube steam and hot water boilers and built in eonomizer

Scotch Marine Firetube Boiler Systems

CRG Scotch Marine Steam & Hot Water Boilers

Euro

Euro maintains a lower profile design to meet shipping requirements and a Wetback construction eliminates refractory rear door & baffles between flue gas passes.

Literature

The Euro Brochure

CRG Boiler Systems Euro 3 Pass Scotch Marine wetback boiler brochure.

Download PDF

Standard Features

Euro Boiler Standard Features

• Boiler is of the 3 Pass, Scotch type, built and stamped in accordance with the requirements of the ASME Code, and listed by the National Board of Boilers and Pressure Vessel Inspectors.

• Large combustion chamber with low heat release for complete combustion.

• Smoke box is rear-mounted with slip-on stack connector.

• Access to fireside is accomplished with hinged and davited front and rear doors. Flame observation ports are located on front and rear.

• Openings for vessel cleanout and inspection of waterside are provided with 3” x 4” hand holes, and 12” x 16” manway access.

• Insulated with 2” high density mineral wool, lagged with 22 gage grip jacketing, baked on finish to resist chipping and fading.

• Firetubes are rolled and beaded on power boilers, expanded and flared on low pressure boilers.

• Supports include lifting lugs securely welded to the top of shell; structured steel support legs on skids support the boiler so that special foundations are not required.

Standard Steam Trim & Water Trim

Euro Boiler Standard Steam Trim

• Operating & high limit pressure control

• Modulating pressure control (when appl.)

• Water column with gauge glass, combination low water cut-off & pump control

• Probe Aux, L.W.C.O.
Steam pressure gauge, syphon & test cock

• Water column drain valve

• Safety relief valve(s) per ASME Code

Euro Standard Water Trim

• Operating & high limit temperature control

• Modulating temperature control (when appl.)

• Probe type low water cut-off control

• Combination pressure & temperature gauge

• Hot water return baffle for shock resistance

• Safety relief valve(s) per ASME Code

Engineering Data

Euro Boiler Data Specifications

Boiler Specifications - Browser View

Euro Boiler Table Specifications

Dimensions subject to change without notice.
*NOTE:1 3" & Above are 300# ANSI flange.
*NOTE:2 4" & Above are 150# ANSI flange.

For Sect.-I High-Press. steam. This chart applicable for 50 PSI up to 300 PSI.
Steam and low and high pressure hot water only.
For steam pressures below 50 PSI and for Section-IV low pressure steam below 15 PSI.
Consult factory for boiler dimensions and or certified DWGS.

*NOTE: 1800 & 2000 HP weights do not include burner or refractory head ring.
*NOTE: Studded outlet Flg's on 400 HP, 1800-2000 HP.

	Boiler Horsepower			100	125	150	200	250	300	350	400	500	600	700	750	800	900	1000	1200	1500	1800	2000
	Steam Output	FROM & @ 212°	LBS/HR	3,450	4,313	5,175	6,900	8,625	10,350	12,075	13,800	17,250	20,700	24,150	25,875	27,600	31,050	34,500	41,400	51,750	62,100	69,000
	Gross Output	@ 33,475 BTU/BHP	MBH	3,348	4,184	5,021	6,695	8,369	10,043	11,716	13,390	16,738	20,085	23,432	25,106	26,780	30,128	33,475	40,170	50,213	60,255	66,950
	Firing Rate Gas	1,000 BTU	CFH	4,200	5,250	6,300	8,400	10,500	12,600	14,700	16,800	21,000	25,200	29,400	31,500	33,600	37,800	42,000	50,400	63,000	75,600	84,000
	Firing Rate LP Gas	91,500 BTU	GPH	46	57	69	92	115	138	160	184	230	275	320	344	368	413	460	550	688	826	918
	Firing Rate Oil #2	140,000 BTU	GPH	29.9	37.4	45	60	75	90	105	120	150	180	210	225	240	270	300	360	450	540	600
	Firing Rate Oil #5 & #6	150,000 BTU	GPH	28	35	42	56	70	84	98	112	140	168	196	210	224	252	280	336	420	504	560

A	*Note:1 Steam Outlet Size	150 PSI	IN	4	4	4	4	6	6	6	6	6	8	8	8	8	8	8	10	10	*12	*12	A
A	*Note:2 Steam Outlet Size	15 PSI	IN	8	8	8	8	10	10	10	10	10	12	12	12	12	14	14	14	14	*16	*16	A
B	*Note:2 Water Supply Size	30 PSI	IN	8	8	8	8	10	10	10	10	10	12	12	12	12	12	12	14	14	*16	*16	B
C	*Note:2 Water Return Size	30 PSI	IN	6	6	6	6	8	8	8	8	8	8	10	10	10	12	12	14	14	*16	*16	C
D	Feed Water Connection		IN	1.25	1.25	1.25	1.5	1.5	2	2	2	2	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	D
E	Blowdown Connection (BTM)	High Press.	IN	1.25	1.25	1.25	1.25	1.25	1.5	1.5	1.5	1.5	1.5	2	2	2	2	2	2	2	2	2	E
E	Blowdown Connection (BTM)	Low Press. & HW	IN	1.5	1.5	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2.5	2.5	2.5	E
F	Stack Outlet Size O.D.		IN	14	14	16	16	18	20	20	24	24	28	34	34	34	34	34	38	42	*48	*48	F
G	Furnace O.D.		IN	30	30	35.25	35.25	38	38	38	44	50	54	56	56	60	60	60	60	62	66	66	G
H	Shell I.D.		IN	54	54	66	66	72	75.5	75.5	78	96	102	108	108	112	112	112	126	136	142	142	H
I	Note:3- Supply Height	150 PSI	IN	74.625	74.625	87.75	87.75	93.75	97.5	97.5	93.625	121	127	133	133	137.25	137.25	137.25	152.25	162.5	162	162	I
J	Width Without Trim		IN	60	60	73	73	78	83	83	85	102.75	108	115	115	119	119	119	133.5	144.5	149	149	J
K	Width WithTrim		IN	67	67	80	80	87	89	89	91	108.25	113.25	124	124	136	136	136	139.5	150.75	161	161	K
L	Skid Width		IN	44	44	51	51	57	60	60	62	76	78	86	86	92	92	92	108	114	124	124	L
M	End of Skid From Frt. Plate		IN	19.6875	21.6875	22.6875	22.6875	28.625	31.625	31.625	36	31.625	52.625	46.625	46.625	36.625	52.5	51.5	55.625	59.625	70	76	M
N	Shell to Floor		IN	14	14	15	15	15	15	15	14	18	18	18	18	18	18	18	18	18	16	16	N
O	Skid Length		IN	120	134	159	165	180	200	206	236	212	240	228	228	228	264	288	294	320	336	354	O
P	Stack Height	IN	74.625	74.625	87.75	87.75	93.75	97.5	97.5	104	122	128	134	134	138.25	138.25	138.25	152.25	162.5	162	162	162	P
Q	Steam Outlet Location	15 & 150 PSI	IN	55.8125	55.8125	63.8125	63.8125	67.875	82.875	82.875	103.875	96.875	96.375	89.875	90.5	101.375	122	116	122.375	135.875	134	140	Q
R	Supply Location		IN	35.8125	35.8125	39.8125	39.8125	45.875	50.875	50.875	55.875	60.375	66.375	60.875	60.875	63	68	75	75	74	74	74	R
S	Return Location		IN	56	68	80	84	86	96	99	114	162.375	168.375	162.875	162.875	165	188	206	206	218	218	230	S
T	Tube Removal	FRONT	IN	111	123	144	150	161	176	182	209	195	202	196	196	209	231	253	281	281	281	293	T
U	Burner Projection	Standard Burner	IN	32	35	35	35	48	52	52	52	65	66	66	70	70	75	75	84	84	96	96	U
V	Stack Outlet		IN	119.8125	131.8125	153.8125	159.8125	171.875	187.875	195.875	221.875	208.875	217.875	214.375	214.375	225.875	249.5	271.5	273.5	302.875	307	319	V
W	Approx. Overall Length		IN	162	177	200	206	232	253	263	289	279	290	299.375	303.375	312	343.5	365.5	379	405	429	441	W

	Overall Shipping Height	30 & 150 PSI	IN	76	76	89	89	95	99	99	96	122	128	134	138.25	138.25	138.25	138.25	152.25	162.5	164	164
	Shipping Weight - High Press.	150 PSI	LBS	8,300	9,000	13,500	14,650	17,250	20,500	21,000	26,000	35,000	38,000	43,000	44,200	49,500	53,750	57,500	72,000	89,000	*89,000	*92,000
	Water Capacity - Steam	NWL	GALS	516	579	1,025	967	1,406	1,538	1,555	1,748	2,390	2,688	3,405	3,348	3,590	4,015	4,443	5,855	7,176	5,855	7,165
	Water Capac - Water	Flooded	GALS	573	643	1,222	1,218	1,648	1,949	2,022	2,166	3,453	3,983	4,290	4,233	4,823	5,152	5,697	7,980	10,386	7,980	10,532
	Boiler Horsepower			100	125	150	200	250	300	350	400	500	600	700	750	800	900	1000	1200	1500	1800	2000

400

Stress relieving “Wetback” construction for Extra-Long life and the Wetback construction eliminates refractory rear door & baffles between flue gas passes.

Literature

The 400 Brochure

CRG Boiler Systems 400 3 Pass Scotch Marine wetback boiler brochure.

Download PDF

Standard Features

400 Boiler Standard Features

• Large combustion chamber with low heat release for complete combustion.

• Smoke box is rear-mounted with slip-on stack connector.

• Access to fireside is accomplished with hinged and davited front and rear doors. Flame observation ports are located on front and rear.

• Openings for vessel cleanout and inspection of waterside are provided with 3” x 4” hand holes, and 12” x 16” manway access.

• Insulated with 2” high density mineral wool, lagged with 22 gage grip jacketing, baked on finish to resist chipping and fading.

• Firetubes are rolled and beaded on power boilers, expanded and flared on low pressure boilers.

• Supports include lifting lugs securely welded to the top of shell; structured steel support legs on skids support the boiler so that special foundations are not required.

Standard Steam Trim & Water Trim

400 Boiler Standard Steam Trim

• Operating & high limit pressure control

• Modulating pressure control (when appl.)

• Water column with gauge glass, combination low water cut-off & pump control

• Probe Aux, L.W.C.O.
Steam pressure gauge, syphon & test cock

• Water column drain valve

• Safety relief valve(s) per ASME Code

400 Boiler Standard Water Trim

• Operating & high limit temperature control

• Modulating temperature control (when appl.)

• Probe type low water cut-off control

• Combination pressure & temperature gauge

• Hot water return baffle for shock resistance

• Safety relief valve(s) per ASME Code

Engineering Data

400 Boiler Table Specifications

Boiler Specifications - Browser View

400 Boiler Specifications

Dimensions subject to change without notice.
*NOTE:1 3" & Above are 300# ANSI flange.
*NOTE:2 4" & Above are 150# ANSI flange.

All dimensions are in inches.
Certified drawing available upon request.
Consult factory for boiler dimensions and or certified DWGS.

*NOTE: 100 HP & Larger has 12" X 16" Manway.
Dimensions subject to change without notice.

SEMI WET BACK
	Boiler Horespower			30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	750	800	900	1000	1200	1500
	Heating Surface	Fireside	Sq. Ft.	150	200	250	300	350	400	500	625	750	1,000	1,250	1,500	1,750	2,000	2,500	3,000	3,500	3,750	4,000	4,500	5,000	6,000	7,500
	Stem Output	From &@ 212°	LBS/HR	1,035	1,380	1,725	2,070	2,415	2,760	3,450	4,313	5,175	6,900	8,625	10,350	12,075	13,800	17,250	20,700	24,150	25,875	27,600	31,050	34,500	41,400	51,750
	Gross Output		MBH	1,004	1,339	1,674	2,009	2,343	2,678	3,348	4,184	5,021	6,695	8,369	10,043	11,716	13,390	16,738	20,085	23,432	25,106	26,780	30,128	33,475	40,170	50,213
	Firing Rate gas	1,000 BTU/CF	CFH	1,260	1,680	2,100	2,520	2,940	3,360	4,200	5,250	6,300	8,400	10,500	12,600	14,700	16,800	21,000	25,200	29,400	31,500	33,600	37,800	42,000	50,400	63,000
	Firing Rate LP gas	91,500 BTU	GPH	13.8	18.4	23	27.5	32	36.7	46	57	69	92	115	138	160	184	230	275	320	344	368	413	460	550	688
	Firing Rate Oil #2	140,000 BTU	GPH	9	12	15	18	21	24	29.9	37.4	45	60	75	90	105	120	150	180	210	225	240	2,770	300	360	450
	Firing Rate Oil #5 & #6	150,000 BTU	GPH	8.4	11.2	14	16.8	19.6	22.4	28	35	42	56	70	84	96	112	140	168	196	210	224	252	280	336	420

A	*NOTE:1 Steam Outlet Size	150 PSI	IN	1.5	2	2.5	2.5	3	3	4	4	4	4	6	6	6	6	6	8	8	8	8	8	8	10	10	A
A	*NOTE:2 Steam Outlet Size	15 PSI	IN	4	4	4	6	6	6	8	8	8	8	10	10	10	10	10	12	12	12	12	14	14	14	14	A
B	*NOTE:2 Water Supply Size	30 PSI	IN	4	4	4	6	6	6	8	8	8	8	10	10	10	10	10	12	12	12	12	12	12	14	14	B
C	*NOTE:2 Water Return Size	30 PSI	IN	4	4	4	4	4	4	6	6	6	6	8	8	8	8	8	8	10	10	10	12	12	14	14	C
D	Feed Water Connection Size		IN	0.75	0.75	0.75	1	1	1.25	1.25	1.25	1.25	1.5	1.5	2	2	2	2	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	D
E	Blowdown Connection (BTM)	High Pressure	IN	1	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.5	1.5	1.5	1.5	1.5	2	2	2	2	2	2	2	E
E	Blowdown Connection (BTM)	Low Pressure & HW	IN	1.25	1.25	1.25	1.5	1.5	1.5	1.5	1.5	1.5	2	2	2	2	2	2	2	2	2	2	2	2	2	2	E
F	Stack Outlet Size O.D.		IN	10	10	10	12	12	12	14	14	16	16	18	20	20	24	24	28	28	28	30	30	30	32	32	F
G	Furnace O.D.		IN	14	14	16	18	18	18	22	26	26	30	32	34	34	38	38	44	52	52	52	52	52	56	56	G
H	Shell I.D.		IN	40	40	44	48	48	48	54	60	60	66	72	84	84	90	96	102	112	112	112	112	112	126	136	H
I	Supply Height		IN	55.3	55.375	59.75	63.75	66.625	66.625	74.625	81.75	81.75	90.75	93.75	108.75	108.75	115	121	127	137.25	137.25	137.25	137.25	137.25	152.25	162.5	I
J	Width without Trim		IN	46	46	50	54.625	54.625	54.625	60	66.5	66.5	72.5	78.5	90.75	90.75	96.25	102.75	108.75	119	119	119	119	119	133.5	144	J
K	Width with Trim		IN	58	58	60	66	66	66	72	79	79	84	92	103	103	109	115	121	136	136	136	136	136	153	165	K
L	Skid Width		IN	34	34	36	40	40	40	44	48	48	51	57	64	64	70	76	78	92	92	92	92	92	108	114	L
M	END OF Skid From Frt.. Plate		IN	13.5	14.5	15.25	15.25	15.25	15.25	21.75	25.125	25.125	23.25	28.625	30.625	35.625	32.625	32.625	52.625	35.125	34.625	36.625	49.625	49.625	55.625	59.5	M
N	Shell to Floor		IN	12	12	12	12	12	12	14	15	15	18	15	18	18	18	18	18	18	18	18	18	18	18	18	N
O	Skid Length		IN	81	99	102	102	102	114	114	132	156	168	180	180	204	198	212	240	207	218	228	264	288	294	320	O
P	Stack Outlet Height		IN	58.6	58.625	62.625	66.625	66.625	66.625	74.625	81.75	81.75	90.75	93.75	108.75	108.75	115	122	138.25	138.25	138.25	138.25	138.25	138.25	152.25	162.5	P
Q	Blowdown Location		IN	35.8	41	31.75	29.75	29.75	29.75	29.75-50	32.875-56	32.875-56	31.875-98	33.875-98	33.875-98	39.875-110	45.875-98	47.875-137	46.875-137	51.375-124	49.875-148	49.875-148	45.875-170	49.875-193	53.875-189	52.875-214	Q
R	Steam Outlet Location	15 PSI & UP	IN	38.4	41.75	40.25	49.75	49.75	58.75	55.75	55.875	73.875	78.375	70	69.375	82.875	91.375	96.875	96.375	90.375	90.375	101.375	122	115.875	122.375	135.875	R
S	Supply Location		IN	20.3	20.25	33.25	37.75	37.75	43.75	32.75	32	32	44.375	49.875	50.375	53.875	55.875	58.875	60	51.375	51.375	51.375	78	78	74.875	65.875	S
T	Return Location		IN	59.3	74.25	78.25	85.75	85.75	97.75	90.75	102	114	128.375	139.875	140.375	148.875	139.875	160.875	160	140.375	140.375	153.375	180	200	205.875	245.875	T
U	Burner Projection	Stnd. Burner	IN	32	36	36	36	36	40.5	40.5	45	45	45	45	46	48	54	57	62	62	62	62	67	67	83	83	U
V	Tube Removal	Front	IN	68	85	88	91	91	102	96	108	132	150	152	150	168	168	184	191	173	184	195	217	239	239	264	V
W	Stack Outlet Location		IN	78.5	95.75	98.75	104.75	104.75	116.75	111.75	123.875	148.875	166.8125	170.875	188.875	190.875	190.875	208.875	217.625	202.375	213.875	225.875	247.875	269.875	270.875	298.875	W
X	Approx. Overall Length		IN	118	139	142	149	149	167	163	179	205	223	229	230	250	260	281	297	282	293	311	311	355	373	401	X
Y	Center Line of Furnace	to Floor	IN	27.3	27.3125	28.8125	31.3125	31.3125	31.3125	29.8125	33.75	33.75	38.375	35.375	41	41	43.5	44.25	47.5	50.25	50.25	50.25	50.25	50.25	52.625	53	Y

	Approx. Shipping Weight	150 PSI	LBS	3,500	4,100	4,700	6,450	6,700	7,150	8,200	10,400	11,800	16,600	18,750	27,100	30,200	2,200	37,900	46,400	48,100	54,100	57,200	61,300	66,400	82,000	103,000
	Approx. Shipping Weight	15 & 30 PSI	LBS	3,400	4,000	4,500	5,665	5,900	6,200	7,200	9,400	10,800	13,700	17,750	25,800	28,200	29,500	34,400	37,400	40,100	42,500	44,900	44,700	54,600	74,000	93,000
	Water Capacity - Steam	NWL	GALS	215	272	324	389	371	429	482	681	848	1,126	1,412	1,773	2,009	2,230	2,918	3,193	3,121	3,347	3,562	3,996	4,425	5,459	6,927
	Water Capacity - Water	Flooded	GALS	252	320	382	445	427	492	564	793	985	1,350	1,633	2,176	2,461	2,790	3,627	4,058	4,043	4,330	4,605	5,147	5,706	7,568	10,205
	Boiler Horespower			30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	750	800	900	1000	1200	1500

500

4 Pass stress relieving “Wetback” construction for Extra-Long life and the Wetback construction eliminates refractory rear door & baffles between flue gas passes.

Literature

The 500 Brochure

CRG Boiler Systems 500 4 Pass Scotch Marine wetback boiler brochure.

Download PDF

Standard Features

500 Boiler Standard Features

• Boiler is of the 4 Pass, Scotch type, built and stamped in accordance with the requirements of the ASME Code, and listed by the National Board of Boilers and Pressure Vessel Inspectors.

• Large combustion chamber with low heat release for complete combustion.

• Smoke box is rear-mounted with slip-on stack connector.

• Access to fireside is accomplished with hinged and davited front and rear doors.

• Flame observation ports are located on front and rear.

• Openings for vessel cleanout and inspection of waterside are provided with 3” x 4” hand holes, and 12” x 16” manway access.

• Insulated with 2” high density mineral wool, lagged with 22 gage grip jacketing, baked on finish to resist chipping and fading.

• Firetubes are rolled and beaded on power boilers, expanded and flared on low pressure boilers.

• Supports include lifting lugs securely welded to the top of shell; structured steel support legs on skids support the boiler so that special foundations are not required.

Standard Steam Trim & Water Trim

500 Boiler Standard Steam Features

• Operating & high limit pressure control

• Modulating pressure control (when appl.)

• Water column with gauge glass, combination low water cut-off & pump control

• Probe Aux, L.W.C.O.
Steam pressure gauge, syphon & #38; test cock

• Water column drain valve

• Safety relief valve(s) per ASME Code

500 Standard Water & Trim Features

• Operating & high limit temperature control

• Modulating temperature control (when appl.)

• Probe type low water cut-off control

• Combination pressure & temperature gauge

• Hot water return baffle for shock resistance

• Safety relief valve(s) per ASME Code

Engineering Data

500 Boiler Table Specifications

Boiler Specifications - Browser View

500 Boiler Specifications

Dimensions subject to change without notice.
*NOTE:1 3" & Above are 300# ANSI flange.
*NOTE:2 4" & Above are 150# ANSI flange.

All dimensions are in inches.
Certified drawing available upon request.
Consult factory for boiler dimensions and or certified DWGS.

*NOTE: 100 HP & Larger has 12" X 16" Manway.
Dimensions subject to change without notice.

SEMI WET BACK
	Boiler Horsepower			30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	750	800	900	1000	1200	1500
	Heating Surface	Fireside	SQ. FT.	150	200	250	300	350	400	500	625	750	1,000	1,250	1,500	1,750	2,000	2,500	3,000	3,500	3,750	4,000	4,500	5,000	6,000	7,500
	Steam Output	From & @ 212°	LBS/HR	1,035	1,380	1,725	2,070	2,415	2,760	3,450	4,313	5,175	6,900	8,625	10,350	12,075	13,800	17,250	20,700	24,150	25,875	27,600	31,050	34,500	41,400	51,750
	Gross Output		MBH	1,004	1,339	1,674	2,009	2,343	2,678	3,348	4,184	5,021	6,695	8,369	10,043	11,716	13,390	16,738	20,085	23,432	25,106	26,780	30,128	33,475	40,170	50,213
	Firing Rate Gas	1,000 Btu/CF	CFH	1,260	1,680	2,100	2,520	2,940	3,360	4,200	5,250	6,300	8,400	10,500	12,600	14,700	16,800	21,000	25,200	29,400	31,500	33,600	37,800	42,000	50,400	63,000
	Firing Rate Lp Gas	91,500 Btu	GPH	13.8	18.4	23	27.5	32	36.7	46	57	69	92	115	138	160	184	230	275	320	344	368	413	460	550	688
	Firing Rate Oil #2	140,000 Btu	GPH	9	12	15	18	21	24	29.9	37.4	45	60	75	90	105	120	150	180	210	225	240	270	300	360	450
	Firing Rate Oil #5 & #6	150,000 Btu	GPH	8.4	11.2	14	16.8	19.6	22.4	28	35	42	56	70	84	98	112	140	168	196	210	224	252	280	336	420

A	*Note:1 Steam Outlet Size	150 PSI	IN	1.5	2	2.5	2.5	3	3	4	4	4	4	6	6	6	6	6	8	8	8	8	8	8	10	10	A
A	*Note:2 Steam Outlet Size	15 PSI	IN	4	4	4	6	6	6	8	8	8	8	10	10	10	10	10	12	12	12	12	14	14	14	14	A
B	*Note:2 Water Supply Size	30 PSI	IN	4	4	4	6	6	6	8	8	8	8	10	10	10	10	10	12	12	12	12	12	12	14	14	B
C	*Note:2 Water Return Size	30 PSI	IN	4	4	4	4	4	4	6	6	6	6	8	8	8	8	8	8	10	10	10	12	12	14	14	C
D	Feed-Water Connection Size		IN	0.75	0.75	0.75	1	1	1.25	1.25	1.25	1.25	1.5	1.5	2	2	2	2	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	D
E	Blowdown Connection (Btm)	High Press.	IN	1	1.25	1.25	1.25	1.25	1.25	2 @ 1.25	2 @ 1.25	2 @ 1.25	2 @ 1.25	2 @ 1.25	2 @ 1.50	2 @ 1.50	2 @ 1.50	2 @ 1.50	2 @ 1.50	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	E
E	Blowdown Connection (Btm)	Low Press. & HW	IN	1.25	1.25	1.25	1.5	1.5	1.5	2 @ 1.5	2 @ 1.5	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	2 @ 2.0	E
F	Stack Outlet Size O.D.		IN	10	10	10	12	12	12	14	14	16	16	18	20	20	24	24	28	30	30	30	30	30	32	32	F
G	Furnace O.D.		IN	14	14	16	18	18	18	22	26	30	30	32	34	34	38	44	46	52	52	52	52	52	56	56	G
H	Shell I.D.		IN	40	40	44	48	48	48	54	60	66	70	72	84	84	90	96	102	115	115	115	120	120	132	136	H
I	Supply Height		IN	55.25	55.375	59.75	63.75	66.625	66.625	74.625	81.75	87.75	90.75	93.75	109	109	115	121	127	140.25	140.25	140.25	146.25	146.25	158.25	162.5	I
J	Width Without Trim		IN	46	46	50	54.63	54.63	54.63	60	66.5	72.5	75.75	77.75	90.75	90.75	96.25	102.75	108.75	122	122	122	127	127	139.5	143.5	J
K	Width With Trim		IN	58	58	60	66	66	66	72	79	84	88	90	102	102	108	114	121	132	132	132	138	138	150	156	K
L	Skid Width		IN	34	34	36	40	40	40	44	48	51	56	57	64	64	70	76	78	88	88	88	92	92	104	114	L
M	End Of Skid From Frt. Plate		IN	13.5	14.25	15.25	15.25	15.25	15.25	21.75	25.13	27.18	34.18	28.63	30.63	35.63	32.63	35.63	48.63	41.63	41.63	42.63	48.63	52.63	55.63	54.5	M
N	Shell To Floor		IN	12	12	12	12	12	12	14	15	15	14	15	18	18	18	18	18	18	18	18	18	18	18	18	N
O	Skid Length		IN	81	99	102	102	102	114	114	132	147	168	180	174	204	198	222	252	228	240	252	261	288	294	330	O
P	Stack Outlet Height		IN	58.63	58.63	62.63	66.63	66.63	66.63	74.63	81.75	87.75	90.75	93.75	109	109	115	121	127	140.25	140.25	140.25	145.25	145.25	158.25	162.5	P
Q	Blowdown Location		IN	35.75	41	31.75	29.75	29.75	29.75	29.75	32.88	31.81	31.81	33.88	34.38	40	46	48	49	48	48	50	50	50	58	60	Q
R	Steam Outlet Location	15 PSI & Up	IN	38.75	41.75	40.25	49.75	49.75	58.75	55.75	55.88	66.61	72.81	70.38	69.88	82.88	91.38	93	96.88	86.88	89.88	91	99.88	105.88	124.88	144	R
S	Supply Location		IN	20.25	20.25	33.25	37.75	37.75	43.75	32.75	32	34	45.88	49.38	46.38	53.88	51.88	56.88	66	61	61	63.88	63.88	70.88	73.88	74	S
T	Return Location		IN	59.25	74.25	78.25	85.75	85.75	97.75	90.75	102	82	80	86	88	95	95	102	110	110	116	126	126	135	137	160	T
U	Burner Projection	Stnd. Burner	IN	32	35	35	38	38	42	42	42	45	45	45	46	48	54	57	62	62	62	62	68	68	84	84	U
V	Tube Removal	Front	IN	68	85	88	91	91	102	96	108	127	139	152	144	168	168	190	205	188	200	213	216	239	239	276	V
W	Center Line Of Furnace	To Floor	IN	27.31	27.31	28.81	31.31	31.31	31.31	29.81	33.75	34.88	34.63	35.63	40.25	40.25	42.63	46.25	47.25	50.5	50.5	50.5	50.5	50.5	52.63	52.75	W
X	Approx. Overall Length		IN	113	130	134	144	144	160	158	189	192	204	219	215	241	246	275	297	283	295	308	317	340	361	402	X
Y	2nd. Blowdown Connection		IN	NA	NA	NA	NA	NA	NA	50	56	93	105	98	96	110	104	120	159	144	156	165	168	191	186	192	Y

	Water Capacity - Steam	Nwl	GALS	215	272	324	389	371	429	482	681	945	1,169	1,332	1,628	1,925	2,250	2,780	3,707	3,019	3,758	4,017	4,504	5,010	5,762	7,121
	Water Capacity - Hot Water	Flooded	GALS	252	320	382	445	427	492	564	793	1,130	1,410	1,553	2,147	2,530	2,829	3,557	4,611	4,838	5,161	5,513	6,218	6,908	8,498	10,480
	Approx. Shipping Weight	150 PSI	LBS	3,500	4,100	4,700	6,450	6,700	7,150	8,200	10,400	13,000	16,600	20,500	25,000	27,600	30,000	37,500	44,000	52,000	58,000	60,000	62,000	68,000	82,000	98,000
	Approx. Shipping Weight	15 & 30 PSI	LBS	3,400	4,000	4,500	6,200	6,400	6,850	7,200	9,400	11,750	13,700	18,500	23,000	25,500	28,000	35,000	41,000	49,000	53,500	55,000	58,000	64,500	78,000	93,000
	Boiler Horsepower			30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	750	800	900	1000	1200	1500

Ohio

Large furnace low heat release and the Wetback construction eliminates refractory rear door & baffles between flue gas passes.

Literature

The Ohio Brochure

CRG Boiler Systems Ohio 3 Pass Scotch Marine wetback boiler brochure.

Download PDF

Standard Features

Ohio Boiler Standard Features

• Boiler is of the 3 Pass, Scotch type, built and stamped in accordance with the requirements of the ASME Code, and listed by the National Board of Boilers and Pressure Vessel Inspectors.

• Large combustion chamber with low heat release for complete combustion.

• Smoke box is rear-mounted with slip-on stack connector.

• Access to fireside is accomplished with hinged and davited front and rear doors.

• Flame observation ports are located on front and rear.

• Openings for vessel cleanout and inspection of waterside are provided with 3” x 4” hand holes, and 12” x 16” manway access.

• Insulated with 2” high density mineral wool, lagged with 22 gage grip jacketing, baked on finish to resist chipping and fading.

• Firetubes are rolled and beaded on power boilers, expanded and flared on low pressure boilers.

• Supports include lifting lugs securely welded to the top of shell; structured steel support legs on skids support the boiler so that special foundations are not required.

Standard Steam Trim

Ohio Boiler Standard Steam Trim Features

• Operating & high limit pressure control

• Modulating pressure control (when appl.)

• Water column with gauge glass, combination low water cut-off & pump control

• Probe Aux, L.W.C.O.
Steam pressure gauge, syphon & test cock

• Water column drain valve

• Safety relief valve(s) per ASME Code

Engineering Data

Ohio Boiler Specifications

Boiler Specifications - Browser View

Ohio Boiler Specifications

12" X 16" Manway.
*NOTE:1 300# ANSI flange.
*NOTE:2 4" & Above are 150# ANSI flange.

All dimensions are in inches.
Certified drawing available upon request.

Dimensions subject to change without notice.

	Ohio Boiler Horsepower			100	125	150	175	200	225
	Heating Surface	Fireside	SQ. FT.	358	358	358	358	358	358
	Steam Output	From &@ 212°	LBS/HR	3,450	4,313	5,175	6,037	6,900	7,762
	Gross Output		MBH	3,348	4,184	5,021	5,858	6,695	7,532
	Firing Rate Gas	1,000 BTU/CF	CFH	4,200	5,250	6,300	7,350	8,400	9,450
	Firing Rate Lp Gas	91,500 BTU	GPH	46	57	69	80.5	92	103
	Firing Rate Oil #2	140,000 BTU	GPH	29.9	37.4	45	52.5	60	67.3
	Firing Rate Oil #5 & #6	150,000 BTU	GPH	28	35	42	49	56	63

A	*Note:1 Steam Outlet Size	150 PSI	IN	4	4	4	4	4	4	A
A	*Note:2 Steam Outlet Size	15 PSI	IN	8	8	8	8	8	8	A
B	Feedwater Connect5Ion Size		IN	1.25	1.25	1.25	1.25	1.25	1.25	B
C	Blowdown Connection (Btm)	High Press.	IN	1.5	1.5	1.5	1.5	1.5	1.5	C
D	Blowdown Connection (Btm)	Low Press.	IN	2	2	2	2	2	2	D
E	Stack Outlet Size O.D.		IN	16	16	16	16	16	16	E
F	Furnace O.D.		IN	32	32	32	32	32	32	F
G	Shell I.D.		IN	60	60	60	66	66	66	G
H	Supply Height		IN	81.75	81.75	81.75	88.75	88.75	88.75	H
I	Width Without Trim		IN	66.5	66.5	66.5	72.5	72.5	72.5	I
J	Width With Trim		IN	79	79	79	85	85	85	J
K	Skid Width		IN	48	48	48	51	51	51	K
L	End Of Skid From Frt. Plate		IN	26.25	26.25	26.25	26.25	26.25	26.25	L
M	Shell To Floor		IN	15	15	15	16	1446	16	M
N	Skid Length		IN	144	144	144	144	144	144	N
O	Stack Outlet Height		IN	82	82	82	89	89	89	O
P	Blowdown Location		IN	27.8125-78	27.8125-78	27.8125-78	27.8125-78	27.8125-78	27.8125-78	P
Q	Steam Outlet Location		IN	62.3125	62.3125	62.3125	62.3125	62.3125	62.3125	Q
R	Burner Projection	*Stnd. Burner	IN	44	45	45	45	45	45	R
S	Tube Removal	Front	IN	121	121	121	121	121	121	S
T	Stack Outlet Location		IN	136.8125	136.8125	136.8125	136.8125	136.8125	136.8125	T
U	Approx. Overall Length		IN	192	193	193	193	193	193	U

	Approx. Shipping Weight	150 PSI	LBS	10,050	10,050	10,150	10,850	10,850	10,850
	Approx. Shipping Weight	15 & 30 PSI	LBS	9,250	9,250	9,350	10,050	10,050	10,050
	Water Capacity - Steam	NWL	GALS	685	685	685	893	893	893
	Water Capacity - Water	Flooded	GALS	885	885	885	1,187	1,187	1,187
	Ohio Boiler Horsepower			100	125	150	175	200	225

CRG Products

CRG Boiler Systems

Semi Wet Back 250

Improved 2 Pass design that eliminates refractory baffles between flue gas passes, offers performance equal to 3 and 4 Pass boilers in many cases.

Literature

The Semi Wetback 250
Brochure

Download PDF

Standard Features

Semi Wetback 250 Standard Features

• Series 250 Boilers can burn gas, oil, and combination gas/oil.

• Boiler is of the 2 Pass, Scotch type, built and stamped in accordance with the requirements of the ASME Code, and listed by the National Board of Boilers and Pressure Vessel Inspectors.

• Large combustion chamber with low heat release for complete combustion.

• Smoke box is front-mounted with slip-on stack connector.

• Access to fireside is accomplished with davited rear door and with split front doors. Flame observation ports are on front and rear

• Openings for cleanout inspection of waterside are provided with 3" x 4" hand holes, and with 12" x 16" manholes (80 HP up).

• Firetubes are rolled and beaded on power boilers, expanded and flared on low pressure boilers (2" dia. through 30 HP, 2 1/2" dia. 40 HP and up).

• Supports include lifting lugs securely welded to the top of shell; structural steel support legs on skids support the boiler so that special foundations are not required.

Standard Water Trim

Semi Wetback 250 Standard Water Trim

• Operating & high limit temperature controls

• Modulating temperature control (when appl.)

• Probe type low water cut-off control with Manual Reset

• Combination pressure & temperature gauge

• Hot water return baffle for shock resistance

• Safety relief valve(s) per ASME Code

• Stack Thermometer

Standard Steam Trim

Semi Wetback 250 Boiler Standard Steam Trim Features

• Operating & high limit pressure control

• Modulating pressure control (when appl.)

• Water column with gauge glass, combination low water cut-off & pump control

• Probe Aux, L.W.C.O. Steam pressure gauge, syphon & test cock

• Stack Thermometer, Water column drain valve

• Safety relief valve(s) per ASME Code

Engineering Data

Semi Wetback 250 Boiler Specifications

Boiler Specifications - Browser View

Semi Wet Back 250 Boiler Specifications

Note:1 3" and above are 300# ANSI flange.
Note:2 4" and above are 150# ANSI flange.
Note:3 Do not use for construction, DIM. (S) and (W)
are dependent on specific burner selection

All dimensions are in inches.
Certified drawing available upon request.

Dimensions subject to change without notice.

	Boiler Specifications 250 Boiler Horespower			20	25	30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	800	900	1000
	Steam Output	From &@ 212°	LBS/HR	690	862	1,035	1,380	1,725	2,070	2,415	2,760	3,450	4,312	5,175	6,900	8,625	10,350	12,075	13,800	17,250	20,700	24,150	27,600	31,050	34,500
	Gross Output		MBH	670	837	1,004	1,339	1,675	2,008	2,343	2,678	3,348	4,184	5,021	6,695	8,369	10,042	11,716	13,390	16,738	20,085	23,432	26,780	30,128	33,475
	Firing Rate gas	1,000 BTU/CF	CFH	840	1,050	1,260	1,680	2,100	2,520	2,940	3,360	4,200	5,250	6,300	8,400	10,500	12,600	14,700	16,800	21,000	25,200	29,400	33,600	37,800	42,000
	Firing Rate LP gas	91,500 BTU	GPH	9.2	11.5	13.8	18.4	23	27.5	32.1	36.7	45.9	57.3	68.8	91.8	114.7	137.7	160.6	183.6	229.5	275.4	321	367	413	460
	Firing Rate Oil #2	140,000 BTU	GPH	6	7.5	9	12	15	18	20.7	24	30	37.5	45	60	75	90	105	120	150	180	210	240	270	300
	Firing Rate Heavy Oil	150,000 BTU	GPH	5.6	7	8.4	11.2	14	16.8	19.3	22.4	28	35	42	56	70	84	98	112	140	168	196	224	252	280

A	*NOTE:1 Steam Outlet Size	150 PSI	IN	1.25	1.25	1.5	1.5	2	2	2.5	2.5	4	4	4	4	6	6	6	6	6	8	8	8	8	8	A
A	*NOTE:2 Steam Outlet Size	15 PSI	IN	3	3	4	4	4	6	6	6	6	6	8	8	10	10	10	10	10	12	12	12	14	14	A
B	*NOTE:2 Water Supply Size	30 PSI	IN	3	3	3	4	4	4	6	6	6	6	8	8	10	10	10	10	10	12	12	12	12	12	B
C	*NOTE:2 Water Return Size	30 PSI	IN	2.5	2.5	3	3	4	4	4	4	6	6	6	6	8	8	8	8	8	10	10	10	12	12	C
D	Feed Water Connection Size		IN	0.75	0.75	0.75	1	1	1	1.25	1.25	1.25	1.25	1.25	1.5	1.5	2	2	2	2	2	2.5	2.5	2.5	2.5	D
E	Blowdown Connection (BTM)	High Pressure	IN	1	1	1	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.5	1.5	1.5	1.5	2	2	2	2	2	E
E	Blowdown Connection (BTM)	Low Pressure & HW	IN	1.25	1.25	1.25	1.25	1.25	1.5	1.5	1.5	1.5	1.5	1.5	2	2	2	2	2	2	2	2	2	2	2	E
F	Shell Inside Diameter		IN	40	40	40	42	42	46	46	48	48	54	54	63	63	68	68	76	76	78	78	78	83	83	F
G	Furnace O.D.		IN	16	16	18	18	20	22	22	24	26	28	28	32	32	36	36	42	42	42	42	42	48	48	G
H	Shell to Floor		IN	14	14	14	14	14	14	14	14	14	14	14	16	16	14	14	15	15	15	15	15	18.5	18.5	H
I	Cent.Line Furn. to Floor		IN	27.31	27.31	27.31	27.31	29.188	29.13	29.13	31.688	31.88	34.438	34.438	37.5	37.5	39.5	39.5	41.625	41.625	41.625	41.625	41.625	48.13	48.13	I
J	Cent. Line Boiler to Floor		IN	34.31	34.31	34.31	35.31	35.31	37.313	37.313	38.313	35.313	41.313	41.313	47.88	47.88	50.38	50.38	53.5	53.5	54.5	54.5	54.5	60.5	60.5	J
K	Stack Outlet Height		IN	60.63	60.63	60.63	62.63	62.63	66.63	66.63	68.63	68.63	74.63	74.63	85.75	85.75	90.75	90.75	98	98	100	100	100	109	109	K
L	Skid and Saddle Width		IN	36	36	36	36	36	40	40	40	40	44	44	54	54	56	56	62	62	60	60	60	64	64	L
M	Skid Length		IN	104	104	104	118	124	138	138	138	172	176	188	176	176	204	204	204	204	252	294	318	321	321	M
N	Skid to Front Plate		IN	21.25	21.25	21.25	23.25	22.25	24.25	24.25	24.25	27.25	30.188	30.188	30.25	30.25	31.25	31.25	35.25	35.25	52.5	52.5	52.5	53.13	53.13	N
O	Stack Outside Dia.		IN	10	10	10	12	12	14	14	14	16	16	16	18	18	20	20	24	24	28	32	32	34	34	O
P	Width with No Trim		IN	45.625	45.625	45.625	48.63	48.63	52.13	52.13	54.13	54.13	60.13	60.13	69.25	69.25	74.25	74.25	82.75	82.75	85	85	85	89.75	89.75	P
Q	Width with Std. Trim		IN	55	55	55	58	58	64	64	64	66	72	72	82	82	85	85	93	93	95	95	95	101	101	Q
R	Length without Burner		IN	133.38	133.38	133.38	147.38	153.38	168.38	168.38	168.38	202.38	205.38	217.38	206.38	206.38	234.38	234.38	237.38	273.88	297.38	339.38	363.38	366.38	366.38	R
S	Length with Std. Burner		IN	144.25	144.25	148.75	160.63	167.53	184.75	184.75	185	216	220.68	232.68	221.75	235.5	263.13	263.13	262.13	303.38	310	352.13	376.13	380.63	380.63	S
T	Steam & FD/Water Location		IN	46.75	46.75	46.75	46.75	48	54.75	54.75	54.75	64.75	64.813	64.813	64.81	64.81	74.81	74.81	76.88	91.88	87.88	111.88	129.88	144	144	T
U	Tube Removal from Front		IN	84	84	84	96	102	114	114	114	143	143	155	144	144	168	168	162	198	198	240	264	264	264	U
V	Length Over End Plates		IN	97	97	97	109	116	129	129	129	160	160	172	161	161	188	188	187.25	223.25	229.88	271.88	295.88	296.25	296.25	V
W	Burner Exten'sn Approx.	Stnd. Burner	IN	32	32	36.5	36.5	36.5	40.75	40.75	40.75	41.25	45.5	45.5	45.5	59.25	59.25	59.25	59.25	64.25	64.25	64.25	64.25	69.5	69.5	W
X	Rear Door Swing Clearance		IN	48	48	48	50	50	54	54	56	56	60	60	64	64	66	66	70	70	70	70	70	73	73	X

	Water Capacity - Flooded		GAL.	443	438	414	531	527	709	704	746	859	1,127	1,215	1,545	1,510	1,993	1,968	2,346	2,764	3,006	3,511	3,830	4,073	3,966
	Water Capacity - Operating		GAL.	323	318	348	409	446	577	571	626	765	950	1,025	1,196	1,162	1,557	1,532	1,822	2,129	2,390	2,772	3,021	3,457	3,349
	Approx. Shipping Weight	150 PSI	LBS	4,325	4,425	4,550	5,000	5,425	6,890	7,000	7,500	8,800	10,500	10,975	13,950	14,400	18,250	18,575	24,500	27,125	30,000	33,300	35,700	42,300	43,250
	Approx. Shipping Weight	Low Pressure	LBS	4,150	4,250	4,450	4,890	5,315	6,500	6,600	7,050	8,225	9,650	10,400	12,930	13,400	17,975	18,300	24,200	26,800	29,600	32,900	35,300	40,200	41,200
	Boiler Horespower			20	25	30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	800	900	1000

CRG Boiler Systems

Industrial Grade Dryback Boilers

200

2 Pass Dryback design, which is inspected and registered with the National Board of Boiler & Pressure Vessel Inspectors.

Literature

The 200 Brochure

CRG Boiler Systems 200 2 Pass Scotch Marine dryback boiler brochure.

Download PDF

Standard Features

200 Dryback Boiler Standard Features

• Boiler is of the 2 Pass, Scotch type, built and stamped in accordance with the requirements of the ASME Code, and listed by the National Board of Boilers and Pressure Vessel Inspectors.

• Large combustion chamber with low heat release for complete combustion.

• Smoke box is front-mounted with slip-on stack connector.

• Access to fireside is accomplished with hinged and davited rear door and with split front doors.
Flame observation ports are on front and rear.

• Openings for cleanout inspection of waterside are provided with 3” x 4” hand holes, and with
12” x 16”manholes (80 HP up).

• Insulated with 2” high-density mineral wool, lagged with 22 gauge grip jacketing, baked on epoxy enamel to resist chipping and fading.

• Firetubes are rolled and beaded on power boilers, expanded and flared on low pressure boilers.

• Supports include lifting lugs securely welded to the top of shell; structural steel support legs on skids support the boiler so that special foundations are not required.

Standard Steam & Water Trim

200 Dryback Boiler Standard Steam Features

• Operating & High Limit pressure control

• Modulating pressure control (when appl.)

• Water column with gauge glass, combination low water cut-off & pump control

• L.W.C.O. Control w/2nd AUX Probe Steam pressure gauge, syphon & test cock

• Water column drain valve

• Safety relief valve(s) per ASME Code

200 Dryback Boiler Standard Water Trim Features

• Operating & High limit temperature control

• Modulating temperature control (when appl.)

• Probe type low water cut-off control

• Combination pressure, temperature, altitude gauge

• Hot water return baffle for shock resistance

• Safety relief valve(s) per ASME Code

Engineering Data

200 Dryback Boiler Engineering Data

Boiler Specifications - Browser View

200 Dryback Boiler Specifications

Dimensions subject to change without notice.
*NOTE:1 3" and above are 300# flange.
*NOTE:2 4" & Above are 150# flange.

All dimensions are in inches.
Certified drawing available upon request.

Dimensions L & X are variables of final burner selection.

	BOILER SPECIFICATIONS
	200 BOILER HORSEPOWER			15	20	25	30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	800
	HEATING SURFACE	FIRESIDE	SQ. FT.	75	100	125	150	200	250	300	350	400	500	625	750	1000	1250	1500	1750	2000	2500	3000	3500	4000
	STEAM OUTPUT	FROM & @ 212 °F	LBS/HR	517	690	862	1035	1380	1725	2070	2415	2760	3450	4312	5175	6900	8625	10350	12075	13800	17250	20700	24150	27600
	GROSS OUTPUT	1,000 BTU	MBH	502	670	837	1004	1339	1675	2008	2343	2678	3348	4184	5021	6695	8369	10042	11716	13390	16738	20085	23432	26780
	FIRING RATE GAS	1,000 BTU	CFH	630	840	1050	1260	1680	2100	2520	2940	3360	4200	5250	6300	8400	10500	12600	14700	16800	21000	25200	29400	33600
	FIRING RATE LP GAS	91,500 BTU	GPH	6.9	9.2	11.5	13.8	18.4	23	27.5	32.1	36.7	45.9	57.3	68.8	91.8	114.7	137.7	160.6	183.6	229.5	275.4	321	367
	FIRING RATE OIL #2	140,000 BTU	GPH	4.5	6	7.5	9	12	15	18	20.7	24	30	37.5	45	60	75	90	105	120	150	180	210	240
	FIRING RATE OIL #5 & #6	150,000 BTU	GPH	4.2	5.6	7	8.4	11.2	14	16.8	19.3	22.4	28	35	42	56	70	84	98	112	140	168	196	224
A	*NOTE: 1 STEAM OUTLET SIZE	150 PSI	GPH	1.25	1.25	1.25	1.50	1.50	2.00	2.00	2.50	2.50	3	4	4	4	6	6	6	6	8	8	8	8	A
A	*NOTE: 2 STEAM OUTLET SIZE	15 PSI	IN	2.50	3	3	4	4	4	6	6	6	6	8	8	8	10	10	10	12	12	12	12	12	A
B	*NOTE: 2 WATER SUPPLY SIZE	30 PSI	IN	2.50	3	3	3	4	4	4	6	6	6	6	8	8	8	10	10	10	12	12	12	12	B
C	*NOTE 2 WATER RETURN SIZE	30 PSI	IN	2	2.50	3	3	3	4	4	4	4	6	6	6	6	6	8	10	10	10	10	12	12	C
D	FEEDWATER CONNECTION	HIGH PRESS.	IN	1	1	1	1	1	1	1	1.25	1.25	1.25	1.50	1.50	2	2	2	2	2	2	2.50	2.50	2.50	D
E	BLOWDOWN CONNECTION	BOTTOM	IN	1	1	1	1	1.25	1.25	1.25	1.25	(2) 1.5	(2) 1.5	(2) 1.5	(2) 1.5	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	E
F	STACK OUTLET SIZE O.D.		IN	8	8	10	10	12	12	12	16	16	16	16	16	20	20	20	24	24	24	26	26	30	F
G	FURNACE O.D.		IN	16	16	18	18	20	20	20	24	24	24	26	26	34	34	34	42	42	42	48	48	48	G
H	SHELL I.D.		IN	36	36	42	42	48	48	48	54	54	54	60	60	75.5	75.5	75.5	90	90	90	102	102	102	H
I	WIDTH WITHOUT TRIM		IN	44	44	50	50	56	56	56	62	62	62	68.5	68.5	84.5	84.5	84.5	99	99	99	111	111	111	I
J	WIDTH WITH TRIM		IN	49	49	55	55	61	61	61	67	67	67	73	73	93	93	93	103	103	103	116	116	116	J
K	LENGTH, FRONT TO REAR		IN	71	86	78	89	99	119	135	115	127	151	175	195	163	194	215	177	187	223	239	271	307	K
L	LENGTH OVERALL		IN	106	121	113	124	134	154	170	150	162	188	214	234	209	240	261	224	235	268	310	342	380	L
M	SKID LENTH		IN	72	90	84	96	102	120	138	117	132	150	174	198	168	192	216	168	180	220	240	282	318	M
N	SKID WIDTH		IN	30	30	36	36	40	40	40	44	44	44	48	48	60	60	60	70	70	70	78	78	78	N
O	STEAM SUPPLY LOCATION		IN	29	26	30	35	40	48	48	50	50	65	69	82	57.87	82.87	94	75	77	100	86.87	98.87	98.87	O
P	WATER SUPPLY LOCATION		IN	18	24	23	27	30	30	36	31	37	37	48	48	37	48	53	39	48	54	60	64.87	64.87	P
Q	WATER RETURN LOCATION		IN	45	56	51	59	68	84	90	78	88	103	120	132	115	138	161	117	132	162	174	192.87	226.87	Q
R	BLOWDOWN LOCATION	15 PSI AND UP	IN	20	20	18	18	23	23	23	23	23-66	23-89	25-112	26-130	25-94	27-125	31-135	30-99	28-108	27-144	39-142	39-174	39-206	R
S	SURFACE BLOW-OFF CONNECTION		IN	23.56	23.56	24.56	24.56	25.81	25.81	25.81	29.56	29.56	29.56	31.88	31.88	36.50	36.50	36.50	43.13	43.13	43.13	46	46	46	S
T	STACK OUTLET LOCATION		IN	21	25	25	26	25	23	25	26	29	23	25	29	34	27	30	25	25	29	38	48	50	T
U	SUPPLY HEIGHT		IN	51	51	57	57	63	63	63	72	72	75	82	82	98	98	98	115	115	115	127	127	127	U
V	STACK HEIGHT		IN	54.63	54.63	60.63	60.63	66.63	66.63	66.63	75	75	75	82	82	99	99	99	116	116	116	128	128	128	V
W	SHELL, TO FLOOR HEIGHT		IN	12	12	12	12	12	12	12	14	14	14	15	15	15	15	15	18	18	18	18	18	18	W
X	BURNER PROJECTION		IN	32	32	32	32	32	32	32	32	32	34	35	35	43	43	43	43	43	40	67	67	69	X
Y	DOOR SWING		IN	22	22	25	25	28	28	28	31	31	31	34	34	43	43	43	50	50	50	57	57	57	Y
Z	SKID TO FRONT PLATE		IN	19.25	23.25	24.25	25.25	23.25	21.25	23.25	26.25	29.25	23.25	23.25	27.25	34.13	27.12	30.12	25.125	27.125	31.125	36.125	46.125	34.125	Z
AA	TUBE REMOVAL	REAR	IN	40	55	47	58	64	84	100	76	88	112	131	151	117	148	169	124	135	171	181	213	245	AA
BB	TUBE REMOVAL	FRONT	IN	47	62	54	65	71	91	107	83	95	119	141	161	124	155	176	131	143	179	189	221	253	BB
	WATER CAPACITY - STEAM SERIES	NWL	GALS	123	165	193	233	330	425	511	436	510	628	1000	1142	1274	1552	1764	1684	1872	2300	2938	3439	3941
	WATER CAPACITY - WATER SERIES	FLOODED	GALS	146	195	225	271	383	493	582	528	606	761	1160	1326	1547	1895	2153	2133	2364	2915	4071	4766	5461
	SHIPPING WEIGHT - HIGH PRESS.	DRY	LBS	2975	3225	3850	4125	6100	7375	8250	9400	10300	12450	15000	16500	17900	25700	28000	32000	33900	39900	47000	54300	58000
	SHIPPING WEIGHT - LOW PRESS.	DRY	LBS	2850	3075	3650	3450	5750	6950	7550	8100	9300	11100	14350	15800	16500	23900	25250	31000	33000	38800	47000	54300	58000
	BOILER HORSEPOWER			15	20	25	30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	800

300

3 Pass “Scotch Marine” Firetube design with “SureSeal” Dryback construction.

Literature

The 300 Brochure

CRG Boiler Systems 300 3 Pass fire tube Scotch Marine dryback boiler brochure.

Download PDF

Standard Features

300 Dryback Boiler Standard Features

• Boiler is of the 3 Pass, Scotch type, built and stamped in accordance with the requirements of the ASME Code, and listed by the National Board of Boilers and Pressure Vessel Inspectors.

• Large combustion chamber with low heat release for complete combustion.

• Smoke box is front-mounted with slip-on stack connector.

• Access to fireside is accomplished with hinged and davited rear door and with split front doors. Flame observation ports are on front and rear.

• Openings for cleanout inspection of waterside are provided with 3” x 4” hand holes, and with 12” x 16”manholes (80 HP up).

• Insulated with 2” high-density mineral wool, lagged with 22 gauge grip jacketing, baked on epoxy enamel to resist chipping and fading.

• Firetubes are rolled and beaded on power boilers, expanded and flared on low pressure boilers.

• Supports include lifting lugs securely welded to the top of shell; structural steel support legs on skids support the boiler so that special foundations are not required.

Standard Steam Trim & Water Trim

300 Dryback Boiler Standard Steam Trim Features

• Operating & high limit pressure control

• Modulating pressure control (when appl.)

• Water column with gauge glass, combination low water cut-off & pump control

• Probe Aux, L.W.C.O. w/ Manual Reset, Steam pressure gauge, syphon & test cock

• Stack Thermometer, Water column drain valve Safety relief valve(s) per ASME Code

300 Dryback Boiler Standard Water Trim Features

• Operating & high limit temperature control

• Modulating temperature control (when appl.)

• Probe type low water cut-off control w/Manual Reset

• Combination pressure & temperature gauge

• Hot water return baffle for shock resistance

• Safety relief valve(s) per ASME Code

• Stack Thermometer

Engineering Data

300 Dryback Boiler Engineering Data

Boiler Specifications - Browser View

300 Dryback Boiler Specifications

Dimensions subject to change without notice.
*NOTE:1 3" and above are 300# flange.
*NOTE:2 4" & Above are 150# flange.

All dimensions are in inches.
Certified drawing available upon request.

Dimensions L & X are dependent on specific burner used.

	BOILER SPECIFICATIONS
	300 BOILER HORSEPOWER			15	20	25	30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	800
	HEATING SURFACE	FIRESIDE	SQ. FT.	75	100	125	150	200	250	300	350	400	500	625	750	1000	1250	1500	1750	2000	2500	3000	3500	4000
	STEAM OUTPUT	FROM & @ 212 °	LBS/HR	517	690	862	1035	1380	1725	2070	2415	2760	3450	4312	5175	6900	8625	10350	12075	13800	17250	20700	24150	27600
	GROSS OUTPUT		MBH	502	670	837	1004	1339	1675	2008	2343	2678	3348	4184	5021	6695	8369	10042	11716	13390	16738	20085	23432	26780
	FIRING RATE GAS	1,000 BTU/CF	CFH	630	840	1050	1260	1680	2100	2520	2940	3360	4200	5250	6300	8400	10500	12600	14700	16800	21000	25200	29400	33600
	FIRING RATE LP GAS	91,500 BTU	GPH	6.9	9.2	11.5	13.8	18.4	23	27.5	32.1	36.7	45.9	57.3	68.8	91.8	114.7	137.7	160.6	183.6	229.5	275.4	321	367
	FIRING RATE OIL #2	140,000 BTU	GPH	4.5	6	7.5	9	12	15	18	20.7	24	30	37.5	45	60	75	90	105	120	150	180	210	240
	FIRING RATE OIL HEAVY OIL	150,000 BTU	GPH	4.2	5.6	7	8.4	11.2	14	16.8	19.3	22.4	28	35	42	56	70	84	98	112	140	168	196	224
A	*NOTE: 1 STEAM OUTLET SIZE	150 PSI	IN	1.25	1.25	1.25	1.5	1.5	2	2	2.5	2.5	3	4	4	4	6	6	6	6	8	8	8	8	A
A	*NOTE: 2 STEAM OUTLET SIZE	15 PSI	IN	2.5	3	3	4	4	4	6	6	6	6	8	8	8	10	10	10	12	12	12	12	12	A
B	*NOTE: 2 WATER SUPPLY SIZE	30 PSI	IN	2.5	3	3	3	4	4	4	6	6	6	6	8	8	8	10	10	10	12	12	12	12	B
C	*NOTE 2 WATER RETURN SIZE	30 PSI	IN	2	2.5	3	3	3	4	4	4	4	6	6	6	6	6	8	10	10	10	10	12	12	C
D	FEEDWATER CONNECTION SIZE		IN	1	1	1	1	1	1	1	1.25	1.25	1.25	1.5	1.5	2	2	2	2	2	2	2.5	2.5	2.5	D
E	BLOWDOWN CONNECTION (BTM)		IN	1	1	1	1	1.25	1.25	1.25	1.25	(2) 1.5	(2) 1.5	(2) 1.5	(2) 1.5	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	(2) 2	E
F	STACK OUTLET SIZE O.D.		IN	8	8	10	10	12	12	12	16	16	16	16	16	20	20	20	24	24	24	26	26	30	F
G	FURNACE O.D.		IN	16	16	18	18	20	20	20	24	24	24	26	26	34	34	34	42	42	42	48	48	48	G
H	SHELL I.D.		IN	36	36	42	42	48	48	48	54	54	54	60	60	75.5	75.5	75.5	90	90	90	102	102	102	H
I	WIDTH WITHOUT TRIM		IN	44	44	50	50	56.5	56.5	56.5	62	62	62	68.5	68.5	84.5	84.5	84.5	99	99	99	111	111	111	I
J	WIDTH WITH TRIM		IN	49	49	55	55	61	61	61	67	67	67	73	73	93	93	93	103	103	103	116	116	116	J
K	LENGTH, FRONT TO REAR		IN	71	86	78	89	99	119	135	115	127	151	175	195	163	194	215	177	187	223	239	271	307	K
L	LENGTH OVERALL		IN	106	121	113	124	134	154	170	150	162	188	214	234	209	240	261	224	235	268	310	342	380	L
M	SKID LENTH		IN	72	90	84	96	102	120	138	117	132	150	174	198	168	192	216	168	180	220	240	282	318	M
N	SKID WIDTH		IN	30	30	36	36	40	40	40	44	44	44	48	48	60	60	60	70	70	70	78	78	78	N
O	STEAM SUPPLY LOCATION		IN	29	26	30	35	40	48	48	50	50	65	69	82	57.87	82.87	94	75	77	100	86.875	98.875	98.875	O
P	WATER SUPPLY LOCATION		IN	18	24	23	27	30	30	36	31	37	37	48	48	37	48	53	39	48	54	60	64.875	64.875	P
Q	WATER RETURN LOCATION		IN	45	56	51	59	68	84	90	78	88	103	120	132	115	138	161	117	132	162	174	192.875	226.875	Q
R	BLOWDOWN LOCATION		IN	20	20	18	18	23	23	23	23	23-66	23-89	25-112	26-130	25-94	27-125	31-135	30-99	28-108	27-144	39-142	39-174	39-206	R
S	C / LINE OF FURNACE TO FLOOR		IN	23.5625	23.5625	24.5625	24.5625	25.8125	25.8125	25.8125	29.5625	29.5625	29.5625	31.875	31.875	36.5	36.5	36.5	43.13	43.13	43.13	46	46	46	S
T	STACK OUTLET LOCATION		IN	58	73	66	77	86	106	122	99.75	111.75	135.75	160	180	143.88	177.88	196.88	153.88	165.88	201.88	217.88	249.88	283.88	T
U	SUPPLY HEIGHT		IN	51	51	57	57	63	63	63	72	72	74.63	81.75	180	98.5	98.5	98.5	115	115	115	127	127	127	U
V	STACK HEIGHT		IN	54.625	54.625	60.625	60.625	68.63	68.63	68.63	74.63	74.63	74.63	81.75	81.75	98.5	98.5	98.5	116	116	116	128	128	128	V
W	SHELL TO FLOOR HEIGHT		IN	12	12	12	12	12	12	12	14	14	14	15	15	15	15	15	18	18	18	18	18	18	W
X	BURNER PROJECTION	STND. BURNER	IN	32	32	32	32	32	32	32	32	32	34	35	35	43	43	43	43	43	43	67	67	69	X
Y	DOOR SWING		IN	22	22	25	25	28	28	28	31	31	31	34	34	43	43	43	50	50	50	57	57	57	Y
Z	SKID TO FRONT PLATE		IN	19.25	23.25	24.25	25.25	23.25	21.25	23.25	26.25	29.25	23.25	23.25	27.25	34.13	27.12	30.12	25.125	27.125	31.125	36.125	46.125	34.125	Z
AA	TUBE REMOVAL REAR		IN	40	55	47	58	64	84	100	76	88	112	131	151	117	148	169	124	135	171	181	213	245	AA
BB	TUBE REMOVAL FRONT		IN	47	62	54	65	71	91	107	83	95	119	141	161	124	155	176	131	143	179	189	221	253	BB
	WATER CAPACITY, STEAM	NWL	GALS	123	165	193	233	330	425	511	436	510	628	1000	1142	1274	1552	1764	1684	1872	2300	2938	3439	3941
	WATER CAPACITY, HOY WATER	FLOODED	GALS	146	195	225	271	383	493	582	528	606	761	1160	1326	1547	1895	2153	2133	2364	2915	4071	4766	5461
	APPROX. SHIPPING WEIGHT	1500 PSI	LBS	2975	3225	3850	4125	6100	7375	8250	9400	10300	12450	15000	16500	17900	25700	28000	32000	33900	39900	47000	54300	58000
	APPROX. SHIPPING WEIGHT	15 & 30 PSI	LBS	2850	3075	3650	3450	5750	6950	7550	8100	9300	11100	14350	15800	16500	23900	25250	31000	33000	38800	47000	54300	58000
	BOILER HORSEPOWER			15	20	25	30	40	50	60	70	80	100	125	150	200	250	300	350	400	500	600	700	800

Stackmaster

Efficient heat recovery system

Literature

The Stackmaster Brochure

Download PDF

Standard Features

Stackmaster Standard Features

• Integrated internal design

• Factory installed

• Instant energy savings

• Increased overall efficiency

• Lower stack temperatures

• Heat recovery

• Available for all horizontal fire tube boilers

Scotch Marine Firetube Boiler Systems

CRG Scotch Marine Steam & Hot Water Boilers

Euro

Literature

The Euro Brochure

Euro Boiler Standard Features

Euro Boiler Standard Steam Trim

Euro Standard Water Trim

Euro Boiler Data Specifications

Euro Boiler Table Specifications

400

Literature

The 400 Brochure

400 Boiler Standard Features

400 Boiler Standard Steam Trim

400 Boiler Standard Water Trim

400 Boiler Table Specifications

400 Boiler Specifications

500

Literature

The 500 Brochure

500 Boiler Standard Features

500 Boiler Standard Steam Features

500 Standard Water & Trim Features

500 Boiler Table Specifications

500 Boiler Specifications

Ohio

Literature

The Ohio Brochure

Ohio Boiler Standard Features

Ohio Boiler Standard Steam Trim Features

Ohio Boiler Specifications

Ohio Boiler Specifications

CRG Products

CRG Boiler Systems

Semi Wet Back 250

Literature

The Semi Wetback 250 Brochure

Semi Wetback 250 Standard Features

Semi Wetback 250 Standard Water Trim

Semi Wetback 250 Boiler Standard Steam Trim Features

Semi Wetback 250 Boiler Specifications

Semi Wet Back 250 Boiler Specifications

CRG Boiler Systems

Industrial Grade Dryback Boilers

200

Literature

The 200 Brochure

200 Dryback Boiler Standard Features

200 Dryback Boiler Standard Steam Features

200 Dryback Boiler Standard Water Trim Features

200 Dryback Boiler Engineering Data

200 Dryback Boiler Specifications

300

Literature

The 300 Brochure

300 Dryback Boiler Standard Features

300 Dryback Boiler Standard Steam Trim Features

300 Dryback Boiler Standard Water Trim Features

300 Dryback Boiler Engineering Data

300 Dryback Boiler Specifications

Stackmaster

Literature

The Stackmaster Brochure

Stackmaster Standard Features

The Semi Wetback 250
Brochure