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TABLE 6 - EQUIVALENT OF STANDARD PIPE FITTING & VALVES
Valves Fully Open (Screwed,
Pipe
I.D.
Size
Inches
Gate
1/2"
0.622
0.36
3/4"
0.824
0.48
1"
1.049
0.61
1-1/4"
1.380
0.81
1-1/2"
1.610
0.94
2"
2.067
1.21
2-1/2"
2.469
1.44
3"
3.068
1.79
4"
4.026
2.35
6"
6.065
3.54
Equivalent lengths are for standard screwed fittings and for screwed, flanged, or welded valves relative
to schedule 40 steel pipe.
Table 7 lists gas inputs at sea level to 2000 feet altitude. Reduce gas input four percent (4%) for each additional
1000 feet above sea level.
Boiler Model
EVO-500
EVO-750
EVO-1000
EVO-1500
EVO-2000
Flanged, Welded)
Globe
Angle
17.3
8.65
22.9
11.4
29.1
14.6
38.3
19.1
44.7
22.4
57.4
28.7
68.5
34.3
85.2
42.6
112
56
168
84.1
TABLE 7 - RATED INPUT
Rated Capacity (CFH)
Natural
500
750
1000
1500
2000
Schedule 40, Screwed Fittings
90°
Swing
Elbow
Check
(threaded)
4.32
1.55
5.72
2.06
7.27
2.62
9.58
3.45
11.2
4.02
14.4
5.17
17.1
6.16
21.3
7.67
28.0
10.1
42.1
15.2
WARNING
LP/Propane
200
300
400
600
800
24
45°
90° Tee, Flow
Elbow
through Branch
(threaded)
(threaded)
0.73
3.10
0.96
4.12
1.22
5.24
1.61
6.90
1.88
8.04
2.41
10.3
2.88
12.3
3.58
15.3
4.70
20.2
7.07
30.4
Gas Connection Size (inch dia.)
1-1/4
1-1/2
1-1/2
1-1/2
1-1/2
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