Low Pressure Steam Boilers

 

 

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  We Sell Rite Low Pressure Steam Boilers and Crown Low Pressure Steam Boilers.

Rite has been building Boilers in Las Angeles, California since 1952. They still have boilers in operation that were built back in the 50s. If you want an American made quality Boiler that is built to last for decades, then a Rite boiler is for you.

 

Atmospheric Low Pressure Steam Boiler

If you would like a quote for a Rite Low Pressure Steam Boiler, I will need to know your elevation above sea level, what type of vessels that you will be firing, the capacity of those vessels in gallons, and the expected heat up time. Click here to email paul@distillery-equipment.com

The Crown Low Pressure Steam Boilers that we sell are a more affordable alternative to the Rite Low Pressure Steam Boilers. However, the largest vessel that a Crown Low Pressure Steam Boiler can heat is 200 gallons. Click the link below to see our Crown Low Pressure Steam Boilers.

Crown Low Pressure Steam Boilers

Models and Ratings for Rite Atmospheric Low Pressure Steam Boilers


Stack / Draft Requirements

  • UL listed for use with Type B Vent when power burner is for natural or L.P. gas fired only.
  • Type 304 stainless steel lined stack is required when equipped with #2 oil or combination gas & #2 oil burner.
  • Minimum stack height for natural or L.P. gas fired burners is 10 feet.
  • Minimum height for #2 oil or combination gas & #2 oil fired boilers is 15 ft.
  • The stack should be supported independently of the boiler and an adjustable length section of stack should be installed after the barometric damper to allow for future separation. All Rite Boilers have internal stack supports to handle the weight of the stack during installation.
  • Power Burner fired boilers are supplied with a barometric damper (shipped loose) and a draft gauge (installed) to help set and maintain a draft between -.05 to -.09 W.C. for all fuels and firing rates.

Air Requirements

Adequate Combustion/Ventilation Air is vital for safe, efficient operation. Refer to the latest edition of the Uniform Mechanical Code or consult your local building and safety department for specific requirements. Warning: Do not install in a room that will develop negative pressure without utilizing a properly sized induced draft fan.

Electrical Requirements

  • A single point 1 or 3 phase supply is required to the burner panel. See separate burner price lists for standard electrical power requirements.

  • Separate electrical supply may be required to operate boiler feed pump.

Natural Gas Supply Requirements (Static and at Flow)

  • Models 15 S * - 76 S *: 6 w.c. min. to 14 w.c. max.
  • Models 85 S * - 400 S *: 7 w.c. min. to 28 w.c. max.
  • Models 425 S * - 750 S *: 15 w.c. min. to 28 w.c. max.
  • Models 840 S * - 1250 S *: 20 w.c. min. to 28 w.c. max.
  • For other gas pressures, consult factory or your Rite Representative.

Propane Supply Requirements: 11" w.c. min. to 14" w.c. max.

Feedwater Systems & Blowdown Tanks

Rite manufactures a complete line of Condensate Return Feedwater Tanks and Blowdown Tanks for our Steam Boilers shown below.

Information in the table below is subject to change during website development. Please contact Rite with issues or questions.

 

BOILER MODEL
Input MBH
MBH (Output)
E.D.R.
Boiler Horsepower
Heating Surface Sq. Ft.
Flooded Water Content Gallons
Normal Water Level Content Gallons
Pounds of Steam per Hour @ 212
Nominal Shipping Weight (lbs)
15 S
150
120
500
4
14
11
7
123
670
20 S
200
160
666
5
19
14
9
164
710
25 S
250
200
843
6
22
18
11
206
750
30 S
300
240
1000
7
28
22
14
247
950
36 S
360
288
1200
9
33
26
17
296
1100
42 S
420
336
1400
10
39
30
19
346
1400
48 S
480
384
1600
11
49
35
25
395
1460
55 S
550
440
1833
13
56
40
27
453
1520
63 S
630
506
2108
15
63
45
29
519
1580
76 S
760
608
2533
18
75
54
32
626
1650
85 S
850
680
2833
20
88
61
49
700
2000
90 S
900
720
3000
21
88
64
49
742
2000
105 S
1050
840
3500
25
101
76
52
865
2200
120 S
1200
960
4000
28
115
85
55
989
2400
135 S
1350
1080
4500
32
131
97
58
1113
2600
150 S
1500
1200
5000
35
145
105
60
1236
2800
165 S
1650
1320
5500
39
159
118
64
1360
3000
180 S
1800
1440
6000
43
174
130
68
1484
3200
200 S
2000
1600
6667
47
192
140
74
1649
3400
A150 S
1500
1200
5000
35
160
120
74
1236
2800
A165 S
1650
1320
5500
39
168
128
78
1360
3000
A180 S
1800
1440
6000
43
190
140
81
1484
3200
A200 S
2000
1600
6667
47
205
150
84
1649
3400
225 S
2250
1800
7500
53
230
162
87
1855
3600
250 S
2500
2000
8333
59
252
180
92
2061
3850
275 S
2750
2200
9167
65
273
196
96
2267
4100
300 S
3000
2400
10000
71
295
215
100
2473
4350
325 S
3250
2600
10833
77
318
234
105
2679
4600
350 S
3500
2800
11667
83
340
251
110
2885
4580
375 S
3750
3000
12500
89
362
268
115
3091
5100
400 S
4000
3200
13333
95
383
287
125
3297
5400
425 S
4250
3400
14167
101
405
304
129
3504
5700
450 S
4500
3600
15000
107
428
322
132
3710
0
475 S
4750
3800
15833
113
450
337
135
3916
6300
500 S
5000
4000
16667
119
473
352
140
4122
6600
550 S
5500
4400
18333
131
526
370
147
4534
7200
600 S
6000
4800
20000
143
574
387
158
4946
7800
A650 S
6500
5200
21667
155
622
405
166
5359
8300
A700 S
7000
5600
23333
167
670
430
174
5731
8850
A750 S
7500
6000
25000
180
722
455
179
6183
9300
A400 S
4000
3200
13333
95
390
300
165
3297
6500
A450 S
4500
3600
15000
107
440
325
174
3710
7100
A500 S
5000
4000
16667
119
486
345
183
4122
7700
A550 S
5500
4400
18333
131
535
380
199
4534
8400
A600 S
6000
4800
20000
143
584
405
207
4946
9000
650 S
6500
5200
21667
155
632
425
215
5359
9600
700 S
7000
5600
23333
167
680
450
223
5771
10200
750 S
7500
6000
25000
180
730
470
232
6183
10800
840 S
8400
6700
27917
200
800
490
399
6935
12000
940 S
9400
7500
31250
225
900
515
419
7250
12700
1050 S
10500
8400
35000
250
1000
540
439
8675
13300
1150 S
11500
9200
38333
275
1100
565
459
9481
14200
1250 S
12499
9999
41662
300
1200
590
480
10300
15000

 

Add G for natural gas or propane O for #2 oil or GO for combination gas &2 oil.

NOTE: Equivalent Direct Radiation (EDR), measured in terms of square feet, is a standardized comparison method estimating the output ability of boilers and radiators.

For Steam Systems: 1 square foot EDR will emit 240 BTUs/hr.
*Rating based on approximately 212 F (100 C) temperature and 1-2 PSI of pressure.

For Hot Water Systems: 1 square foot EDR will emit 160 BTUs/hr.

- Back to Top

Models and Dimensions


Atmospheric Low Pressure Steam Boiler Diagram

  • DIMENSIONS ARE IN INCHES - SUBJECT TO PRODUCTION TOLERANCES AND CHANGE WITHOUT NOTICE. CERTIFIED DIMENSIONS AVAILABLE UPON REQUEST.
  • BOILERS APPROVED FOR INSTALLATION ON NON - COMBUSTIBLE FLOORS ONLY.

1Draft Diverters are supplied standard on Models 48S -120S only. Barometric Dampers will be shipped one size smaller than D dimension for stacks up to 25 feet of vertical height (as shown below in column E), full size (same as D dimension) for stacks 25 to 50 feet tall and one size larger for stacks over 50 feet tall. Barometric Damper Tee by others.

2May vary -sizes shown are for UL gas trains at standard supply pressures. Gas connections are male NPT pipe thread.

3Flanges are ANSI 150 lb SA-105 flat face. Models A150S - 375S: 6 FLG STD. for U.S. locations, 5 FLG for Canadian locations.

4Standard right hand construction shown illustrated above. Left hand construction available at no extra charge.

Information in the table below is subject to change during website development. Please contact Rite with issues or questions.

 

BOILER MODEL
A
B
C
COA
D
E
F
H
J
K
L
N
S
T
Length Jacket
Width Jacket
Height Flush
Height Overall
Stack Dia.
Draft Control
Twin
Stack
Tube Maint.
Gas Conn.
Steam Supply
Feed Water
Side Space
Blow Down
Head Swing
15 S
26
21
58
67
6
28
 
 
0.75
2
1.5
8
1.5
 
20 S
26
21
58
67
6
28
 
 
0.75
2
1.5
8
1.5
 
25 S
35
21
58
67
7
29
 
 
0.75
2
1.5
8
1.5
 
30 S
41
21
58
67
8
30
 
 
1
2.5
1.5
9
1.5
 
36 S
51
21
58
67
9
31
 
 
1
2.5
1.75
9
1.5
 
42 S
57
21
58
67
9
31
 
 
1.25
3
1.5
9
1.5
 
48 S
47
26
57
66
9
9 D.D. (33)
-
40
0.75
3 FL
1.25
10
1.00
20
55 S
52
26
57
66
10
10 D.D. (34)
-
45
1.00
3 FL
1.25
10
1.00
20
63 S
56
26
57
66
10
10 D.D. (34)
-
49
1.00
3 FL
1.25
10
1.00
20
76 S
64
26
57
66
12
12 D.D. (36)
-
57
1.00
3 FL
1.25
10
1.00
20
85 S
59
32
63
72
12
12 D.D. (36)
-
47
1.00
4 FL
1.50
12
1.25
26
90 S
59
32
63
72
12
12 D.D. (36)
-
47
1.00
4 FL
1.50
12
1.25
26
105 S
65
32
63
72
14
14 D.D. (38)
-
53
1.00
4 FL
1.50
12
1.25
26
120 S
71
32
63
72
14
14 D.D. (38)
-
59
1.25
4 FL
1.50
12
1.25
26
135 S
77
32
63
72
14
12 BARO
-
65
1.25
4 FL
1.50
12
1.25
26
150 S
83
32
63
72
14
12 BARO
-
71
1.25
4 FL
1.50
12
1.25
26
165 S
89
32
63
72
14
12 BARO
-
77
1.25
4 FL
1.50
12
1.25
26
180 S
96
32
63
72
16
14 BARO
-
84
1.25
4 FL
1.50
12
1.25
26
200 S
103
32
63
72
16
14 BARO
-
91
1.50
4 FL
1.50
12
1.25
26
A150 S
69
42
69
78
14
12 BARO
-
53
1.25
6 FL
2.00
14
1.50
34
A165 S
73
42
69
78
14
12 BARO
-
57
1.25
6 FL
2.00
14
1.50
34
A180 S
79
42
69
78
16
14 BARO
-
63
1.50
6 FL
2.00
14
1.50
34
A200 S
83
42
69
78
16
14 BARO
-
67
1.50
6 FL
2.00
14
1.50
34
225 S
87
42
69
78
18
16 BARO
-
71
1.50
6 FL
2.00
16
1.50
34
250 S
93
42
69
78
18
16 BARO
-
77
2.00
6 FL
2.00
16
1.50
34
275 S
99
42
69
78
18
16 BARO
-
83
2.00
6 FL
2.00
16
1.50
34
300 S
105
42
69
78
20
18 BARO
-
89
2.00
6 FL
2.00
16
1.50
34
325 S
111
42
69
78
20
18 BARO
-
95
2.00
6 FL
2.00
16
1.50
34
350 S
117
42
69
78
20
18 BARO
-
101
2.00
6 FL
2.00
16
1.50
34
375 S
123
42
69
78
20
18 BARO
-
107
2.00
6 FL
2.00
16
1.50
34
400 S
98
51
79
88
22
20 BARO
-
80
2.00
8 FL
2.00
16
2.00
45
425 S
103
51
79
88
22
20 BARO
-
85
2.00
8 FL
2.00
16
2.00
45
450 S
107
51
79
88
22
20 BARO
-
89
2.00
8 FL
2.00
16
2.00
45
475 S
111
51
79
88
24
20 BARO
-
93
2.50
8 FL
2.00
16
2.00
45
500 S
116
51
79
88
24
20 BARO
-
98
2.50
8 FL
2.00
16
2.00
45
550 S
125
51
79
88
26
24 BARO
-
107
2.50
8 FL
2.00
16
2.00
45
600 S
139
51
79
88
26
24 BARO
-
117
2.50
8 FL
2.00
16
2.00
45
A650 S
149
51
79
88
28
24 BARO
-
127
2.50
8 FL
2.00
16
2.00
45
A700 S
158
51
79
88
28
24 BARO
-
136
2.50
8 FL
2.00
16
2.00
45
A750 S
167
51
79
88
30
28 BARO
-
147
2.50
8 FL
2.00
16
2.00
45
A400 S
89
63
79
88
22
20 BARO
-
72
2.00
8 FL
2.00
16
2.00
56
A450 S
97
63
79
88
22
20 BARO
-
80
2.00
8 FL
2.00
16
2.00
56
A500 S
105
63
79
88
24
20 BARO
-
88
2.50
8 FL
2.00
16
2.00
56
A550 S
119
63
79
88
26
24 BARO
-
102
2.50
8 FL
2.00
16
2.00
56
A600 S
126
63
79
88
26
24 BARO
-
109
2.50
8 FL
2.00
16
2.00
56
650 S
134
63
79
88
28
24 BARO
-
117
2.50
8 FL
2.00
16
2.00
56
700 S
141
63
79
88
28
24 BARO
-
124
2.50
8 FL
2.00
16
2.00
56
750 S
149
63
79
88
30
28 BARO
-
132
2.50
8 FL
2.00
16
2.00
56
840 S
138
77
79
88
(2) 2
(2) 20 BARO
23