Form: 2435-3
Arctic Installation and Operation Manual
Revision: 10
P/N 105641-01
Date: 12-1-2018
Thermal Solutions, 1175 Manheim Pike, Lancaster, PA 17601
Web:
Phone:
717-239-7642
Fax:
877-501-5212
Email:
47
Table 20: Equivalent Lengths Of Standard Pipe Fittings And Valves
Pipe
Size
(npt)
ID
(in.)
Valves Fully Open (Screwed, Flanged,
Welded)
Schedule 40, Screwed Fittings
Gate
Globe
Angle
Swing
Check
90 deg.
Elbow
(threaded)
45 deg.
Elbow
(threaded)
90 deg.
Tee, Flow
Through
Branch
(threaded)
1/2
.622
.36
17.3
8.65
4.32
1.55
.73
3.1
3/4
.824
.48
22.9
11.4
5.72
2.06
.96
4.12
1
1.049
.61
29.1
14.6
7.27
2.62
1.22
5.24
1-1/4
1.38
.81
38.3
19.1
9.58
3.45
1.61
6.9
1-1/2
1.61
.94
44.7
22.4
11.2
4.02
1.88
8.04
2
2.067
1.21
57.4
28.7
14.4
5.17
2.41
10.3
2-1/2
2.469
1.44
68.5
34.36
17.1
6.16
2.88
12.3
3
3.068
1.79
85.2
42.6
21.3
7.67
3.58
15.3
4
4.026
2.35
112
56
28
10.1
4.7
20.2
6
6.065
3.54
168
84.1
42.1
15.2
7.07
30.4
Equivalent lengths are for standard screwed fittings and for screwed, flanged, and welded valves
relative to schedule 40 steel.
Table 21: Specific Gravity Correction Factors
Specific Gravity
Correction Factor
Specific Gravity
Correction Factor
.5
1.1
1.2
.71
.55
1.04
1.3
.68
.6
1.0
1.4
.66
.65
.96
Propane
.7
.93
1.5
.63
.75
.9
1.6
.61
.8
.87
1.7
.59
.85
.84
1.8
.58
.9
.82
1.9
.56
1.0
.78
Butane
1.1
.74
2.0
.55
