Buderus Logano G234X Installation And Maintenance Instructions Manual page 19

Length of the pipe
in feet
(1 foot = 0.3 m)
10
20
30
40
50
75
100
150
Tab. 7 Gas pipe delivery rate
1) Maximum gas pipe delivery rate in cu ft/hr (1 ft
or less and a pressure drop equivalent to a water column of 0.3 inches (7.6 mm).
Iron pipe nominal diameter
(in inches)
1
1¼
1½
2
2½
Tab. 8 Equivalent lengths for pipe fittings
Logano G234X - Technical specifications are subject to change without prior notice.
Gas pipe delivery rate in cubic feet of gas per hour
1" 1¼ "
520 1060
350 730
285 590
245 500
215 440
175 360
160 305
120 250
3
/h = 28.3 l/h) based on a gas specific gravity of 0.60 and a gas pressure of 0.5 psi (34.5 mbar)
Equivalent lengths for pipe fittings in feet (1 foot = 0.3 m)
90° elbow
3
4
5
7
8
Installing the boiler
1)
1½ " 2"
1600 3050
1100 2100
890 1650
760 1450
670 1270
545 1020
480 870
380 710
Type of pipe fitting
T-piece Shut-off valve
5 0.6
6 0.8
7 1.0
10 1.3
12 1.6
5
3
(1 ft /h = 28.3 l/h)
2½ "
4800
3300
2700
2300
2000
1650
1400
1130
Gas shut-off
valve
1.60
2.15
2.50
3.00
3.50
19