Pipe capacity charts, Magnatherm boilers and water heaters – LAARS MagnaTherm MGV - Installation, Operation and Maintenance Instructions User Manual
Page 21
MagnaTherm Boilers and Water Heaters
Page 17
SCHED 40 METAL PIPE CAPACITY FOR 1.50 SPECIFIC GRAVITY
UNDILUTED PROPANE
NOMINAL PIPE SIZE @ 11” W.C. INLET AND 0.5” W.C. PRESSURE
DROP
SCH 40 METAL PIPE CAPACITY FOR 0.60 SPECIFIC GRAVITY
NATURAL GAS
NOMINAL PIPE SIZE @ 0.30” W.C. PRESSURE DROP
Nominal:
2
2½
3
4
5
Nominal:
1½
2
2½
3
4
Actual ID:
2.067
2.469
3.068
4.026
5.047
Actual ID:
1.61
2.067
2.469
3.068
4.026
Length (ft)
Length (ft)
10
4,020
6,400
11,300
23,100
41,800
10
3,520
6,790
10,800
19,100
39,000
20
2,760
4,400
7,780
15,900
28,700
20
2,420
4,660
7,430
13,100
26,800
30
2,220
3,530
6,250
12,700
23,000
30
1,940
3,750
5,970
10,600
21,500
40
1,900
3,020
5,350
10,900
19,700
40
1,660
3,210
5,110
9,030
18,400
50
1,680
2,680
4,740
9,660
17,500
50
1,480
2,840
4,530
8,000
16,300
60
1,520
2,430
4,290
8,760
15,800
60
1,340
2,570
4,100
7,250
14,800
70
1,400
2,230
3,950
8,050
14,600
80
1,230
2,370
3,770
6,670
13,600
80
1,300
2,080
3,670
7,490
13,600
100
1,140
2,200
3,510
6,210
124,700
90
1,220
1,950
3,450
7,030
12,700
125
1,070
2,070
3,290
5,820
11,900
100
1,160
1,840
3,260
6,640
12,000
150
1,010
1,950
3,110
5,500
11,200
125
1,020
1,630
2,890
5,890
10,600
175
899
1,730
2,760
4,880
9,950
150
928
1,480
2,610
5,330
9,650
200
814
1,570
2,500
4,420
9,010
175
854
1,360
2,410
4,910
8,880
250
749
1,440
2,300
4,060
8,290
200
794
1,270
2,240
4,560
8,260
300
697
1,340
2,140
3,780
7,710
150
704
1,120
1,980
4,050
7,320
350
618
1,190
1,900
3,350
6,840
300
638
1,020
1,800
3,670
6,630
400
560
1,080
1,720
3,040
6,190
350
587
935
1,650
3,370
6,100
Notes:
400
546
870
1,540
3,140
5,680
1. Inlet pressure - 11.0 in w.c.
Notes:
2. Pressure drop - 0.5 in w.c.
1. Inlet pressure - Less than 2 psi
3. Specific gravity - 1.50
2. Pressure drop - 0.5 in w.c.
4. Schedule 40 metallic pipe
3. Specific gravity - 0.60
5. Intended use - Pipe sizing between single- or second-stage
4. Schedule 40 metallic pipe
(low pressure) regulator and appliance.
Capacity in Cubic Feet of Gas per Hour
Pipe Size (in.)
Natural Gas
Undiluted Propane
Pipe Size (in.)
Capacity in Cubic Feet of Gas per Hour
Nominal:
2
2½
3
4
5
Nominal:
1½
2
2½
3
4
Actual ID:
2.067
2.469
3.068
4.026
5.047
Actual ID:
1.61
2.067
2.469
3.068
4.026
Length (ft)
Length (ft)
10
4,020
6,400
11,300
23,100
41,800
10
3,520
6,790
10,800
19,100
39,000
20
2,760
4,400
7,780
15,900
28,700
20
2,420
4,660
7,430
13,100
26,800
30
2,220
3,530
6,250
12,700
23,000
30
1,940
3,750
5,970
10,600
21,500
40
1,900
3,020
5,350
10,900
19,700
40
1,660
3,210
5,110
9,030
18,400
50
1,680
2,680
4,740
9,660
17,500
50
1,480
2,840
4,530
8,000
16,300
60
1,520
2,430
4,290
8,760
15,800
60
1,340
2,570
4,100
7,250
14,800
70
1,400
2,230
3,950
8,050
14,600
80
1,230
2,370
3,770
6,670
13,600
80
1,300
2,080
3,670
7,490
13,600
100
1,140
2,200
3,510
6,210
124,700
90
1,220
1,950
3,450
7,030
12,700
125
1,070
2,070
3,290
5,820
11,900
100
1,160
1,840
3,260
6,640
12,000
150
1,010
1,950
3,110
5,500
11,200
125
1,020
1,630
2,890
5,890
10,600
175
899
1,730
2,760
4,880
9,950
150
928
1,480
2,610
5,330
9,650
200
814
1,570
2,500
4,420
9,010
175
854
1,360
2,410
4,910
8,880
250
749
1,440
2,300
4,060
8,290
200
794
1,270
2,240
4,560
8,260
300
697
1,340
2,140
3,780
7,710
150
704
1,120
1,980
4,050
7,320
350
618
1,190
1,900
3,350
6,840
300
638
1,020
1,800
3,670
6,630
400
560
1,080
1,720
3,040
6,190
350
587
935
1,650
3,370
6,100
Notes:
400
546
870
1,540
3,140
5,680
1. Inlet pressure - 11.0 in w.c.
Notes:
2. Pressure drop - 0.5 in w.c.
1. Inlet pressure - Less than 2 psi
3. Specific gravity - 1.50
2. Pressure drop - 0.5 in w.c.
4. Schedule 40 metallic pipe
3. Specific gravity - 0.60
5. Intended use - Pipe sizing between single- or second-stage
4. Schedule 40 metallic pipe
(low pressure) regulator and appliance.
Capacity in Cubic Feet of Gas per Hour
Pipe Size (in.)
Natural Gas
Undiluted Propane
Pipe Size (in.)
Capacity in Cubic Feet of Gas per Hour
Table 8.
Pipe Capacity for Natural Gas
Table 9.
Pipe Capacity for Propane
Nominal:
2
2½
3
4
5
Nominal:
1½
2
2½
3
4
Actual ID:
2.067
2.469
3.068
4.026
5.047
Actual ID:
1.61
2.067
2.469
3.068
4.026
Length (ft)
Length (ft)
10
4,020
6,400
11,300
23,100
41,800
10
3,520
6,790
10,800
19,100
39,000
20
2,760
4,400
7,780
15,900
28,700
20
2,420
4,660
7,430
13,100
26,800
30
2,220
3,530
6,250
12,700
23,000
30
1,940
3,750
5,970
10,600
21,500
40
1,900
3,020
5,350
10,900
19,700
40
1,660
3,210
5,110
9,030
18,400
50
1,680
2,680
4,740
9,660
17,500
50
1,480
2,840
4,530
8,000
16,300
60
1,520
2,430
4,290
8,760
15,800
60
1,340
2,570
4,100
7,250
14,800
70
1,400
2,230
3,950
8,050
14,600
80
1,230
2,370
3,770
6,670
13,600
80
1,300
2,080
3,670
7,490
13,600
100
1,140
2,200
3,510
6,210
124,700
90
1,220
1,950
3,450
7,030
12,700
125
1,070
2,070
3,290
5,820
11,900
100
1,160
1,840
3,260
6,640
12,000
150
1,010
1,950
3,110
5,500
11,200
125
1,020
1,630
2,890
5,890
10,600
175
899
1,730
2,760
4,880
9,950
150
928
1,480
2,610
5,330
9,650
200
814
1,570
2,500
4,420
9,010
175
854
1,360
2,410
4,910
8,880
250
749
1,440
2,300
4,060
8,290
200
794
1,270
2,240
4,560
8,260
300
697
1,340
2,140
3,780
7,710
150
704
1,120
1,980
4,050
7,320
350
618
1,190
1,900
3,350
6,840
300
638
1,020
1,800
3,670
6,630
400
560
1,080
1,720
3,040
6,190
350
587
935
1,650
3,370
6,100
Notes:
400
546
870
1,540
3,140
5,680
1. Inlet pressure - 11.0 in w.c.
Notes:
2. Pressure drop - 0.5 in w.c.
1. Inlet pressure - Less than 2 psi
3. Specific gravity - 1.50
2. Pressure drop - 0.5 in w.c.
4. Schedule 40 metallic pipe
3. Specific gravity - 0.60
5. Intended use - Pipe sizing between single- or second-stage
4. Schedule 40 metallic pipe
(low pressure) regulator and appliance.
Capacity in Cubic Feet of Gas per Hour
Pipe Size (in.)
Natural Gas
Undiluted Propane
Pipe Size (in.)
Capacity in Cubic Feet of Gas per Hour
Nominal:
2
2½
3
4
5
Nominal:
1½
2
2½
3
4
Actual ID:
2.067
2.469
3.068
4.026
5.047
Actual ID:
1.61
2.067
2.469
3.068
4.026
Length (ft)
Length (ft)
10
4,020
6,400
11,300
23,100
41,800
10
3,520
6,790
10,800
19,100
39,000
20
2,760
4,400
7,780
15,900
28,700
20
2,420
4,660
7,430
13,100
26,800
30
2,220
3,530
6,250
12,700
23,000
30
1,940
3,750
5,970
10,600
21,500
40
1,900
3,020
5,350
10,900
19,700
40
1,660
3,210
5,110
9,030
18,400
50
1,680
2,680
4,740
9,660
17,500
50
1,480
2,840
4,530
8,000
16,300
60
1,520
2,430
4,290
8,760
15,800
60
1,340
2,570
4,100
7,250
14,800
70
1,400
2,230
3,950
8,050
14,600
80
1,230
2,370
3,770
6,670
13,600
80
1,300
2,080
3,670
7,490
13,600
100
1,140
2,200
3,510
6,210
124,700
90
1,220
1,950
3,450
7,030
12,700
125
1,070
2,070
3,290
5,820
11,900
100
1,160
1,840
3,260
6,640
12,000
150
1,010
1,950
3,110
5,500
11,200
125
1,020
1,630
2,890
5,890
10,600
175
899
1,730
2,760
4,880
9,950
150
928
1,480
2,610
5,330
9,650
200
814
1,570
2,500
4,420
9,010
175
854
1,360
2,410
4,910
8,880
250
749
1,440
2,300
4,060
8,290
200
794
1,270
2,240
4,560
8,260
300
697
1,340
2,140
3,780
7,710
150
704
1,120
1,980
4,050
7,320
350
618
1,190
1,900
3,350
6,840
300
638
1,020
1,800
3,670
6,630
400
560
1,080
1,720
3,040
6,190
350
587
935
1,650
3,370
6,100
Notes:
400
546
870
1,540
3,140
5,680
1. Inlet pressure - 11.0 in w.c.
Notes:
2. Pressure drop - 0.5 in w.c.
1. Inlet pressure - Less than 2 psi
3. Specific gravity - 1.50
2. Pressure drop - 0.5 in w.c.
4. Schedule 40 metallic pipe
3. Specific gravity - 0.60
5. Intended use - Pipe sizing between single- or second-stage
4. Schedule 40 metallic pipe
(low pressure) regulator and appliance.
Capacity in Cubic Feet of Gas per Hour
Pipe Size (in.)
Natural Gas
Undiluted Propane
Pipe Size (in.)
Capacity in Cubic Feet of Gas per Hour
The following are gas line sizing examples from the
National Fuel Gas Code. Size your gas lines
properly, based on your installation, and all
applicable codes.