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American Society of Heating and Ventilating Engineers Guide, 1925-26 62
' ' American Society of Heating and Ventilating Engineers Guide, 1925-26
Table 36. Length in Feet of Pipe to be Added to Actual Length of Run to
1*
Obtain Equivalent Length
Size of Pipe
St'd. Elbow
Side Outlet Tee .
Gate Valve
Globe Valve
Ancle Valve
Length in Feet to be Added in Run
2*- ` 2W y 3W - 4" b"
6"
7"
8"
9" 10' 12" 14" .
5 7
10 12 14
18 22 26 31 35 39 47 53
16 20 26 31 35 44 50 55 63 69 76 90 105
2 3 3 4 5 7 9 10 . 12
13 15 18 20
18 25 33 39 45 57 70 82 94 105 118 140 160
9 12 16 19 22
28 32 37 42 47 52 63 72
Example of length in feet of pipe to be added to actual length of run.
(<---...... i32-o'~ T------- -%
MEASURED LEM6TH. - 132.-0
4- SATE VALtE. 4-4'ELBOWS.
5-0" 56-O'
EQWVALEUT LEM5TH - 193-0
** t ^....:......H
Table 37. Constants for Various Initial Pressures and Lengths
Steam Pressure Gage Lb&
Constant bt Which to Multiflt Capacitt op ant Pips pob 1 Lb. Gaos Steam Pressure to Obtain Capacitt op Same Pipe pob Pbes-
_ sure in Col. 1
Col. I
Col. 2
Length op Pipe Ft.
Col. 3
Constant bt Which to Multiflt Capacitt op 100 Ft. Pips to Obtain Capacitt op Sake fiiwn Pipe With Same* Pressure, asd Length as Given in Col. 3
CoL 4
0 0.92 20 2.240
i
1.00
40 1.580
2 1.03 60 1.290
5 1.11 80 1.120
10
1.24
100
1.000
15
1.35
120 0.912
20
1.45
140 0.841
30
1.63
160 0.793
40
1.79
180 0.741
50
1.94
200 0.710
60
2.08
250 0.632
75
2.26
300 0.578
100
2.54
350 0.538
125
2.79
400 0.500
150
3.02
450 0.477
175
3.23
500 0.447
200
3.44
600 0.407
700 0.378.
800 0.354
900 0.333
1000
0.316
1400
0.267