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Table 6: Maximum Capacity of Schedule 40 Pipe in CFH for Gas Pressures of 0.5 psig or Less
L
e
n
g
h t
F [
e
e
] t
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
1
0
0
Table 7: Equivalent Lengths of Standard Pipe Fittings & Valves
P
p i
e
. I
. D
i S
e z
I
c n
h
e
s
G
½
"
0
6 .
2
2
¾
"
0
8 .
2
4
" 1
1
0 .
4
9
1
¼
"
1
3 .
8
0
Table 8: Specific Gravity Correction Factors
S
p
e
i c
c i f
C
r o
e r
t c
o i
G
a r
v
y t i
F
a
t c
r o
0
5 .
0
1
1 .
0
0
5 .
5
1
0 .
4
0
6 .
0
1
0 .
0
0
6 .
5
0
9 .
6
0
7 .
0
0
9 .
3
0
7 .
5
0
9 .
0
0
8 .
0
0
8 .
7
C.
Pressure Test. The boiler and its gas connection must
be leak tested before placing boiler in operation.
1. Protect boiler gas valve. For all testing over ½ psig,
boiler and its individual shut-off valve must be
disconnected from gas supply piping. For testing at
½ psig or less, isolate boiler from gas supply piping
by closing boiler's individual manual shut-off valve.
2. Locate leaks using approved combustible gas
detector, soap and water, or similar nonflammable
solution.
0
3 .
n i
c
h
. w
. c
P
e r
½
¾
1
3
2
2
7
8
9
2
1
9
0
7
3
1
5
2
6
3
1
3
0
5
6
1
1
5
5
0
1
0
5
4
6
9
6
4
3
9
0
4
0
8
4
3
8
7
9
V
l a
e v
s
F (
u
y l l
O
p
e
a
e t
G
o l
b
e
A
n
g
e l
0
3 .
5
1
8
6 .
9
3 .
0
4 .
4
2
3
1 .
1
1
5 .
0
5 .
6
2
9
4 .
1
4
7 .
0
7 .
4
3
8
6 .
1
9
3 .
n
S
p
e
i c
c i f
C
r o
e r
G
a r
v
y t i
F
a
t c
1
3 .
0
1
0 .
1
4 .
0
1
0 .
1
5 .
0
1
0 .
1
6 .
0
0
9 .
1
7 .
0
0
9 .
s
s
u
e r
D
o r
p
1
1
¼
5
2
0
1
0 ,
5
0
3
5
0
7
3
0
2
8
5
5
9
0
2
4
5
5
0
0
2
1
5
4
4
0
1
9
5
4
0
0
1
8
0
3
7
0
1
7
0
3
5
0
1
6
0
3
2
0
1
5
0
3
0
5
) n
S
w
n i
g
9
° 0
4
C
h
e
k c
E
b l
o
w
E
b l
4
3 .
1
6 .
0
7 .
5
3 .
2
1 .
0
9 .
6
8 .
2
6 .
1
8
9 .
3
5 .
1
t c
o i
n
r o
D
o
n
t o
7
o
r
o
h t
r e
4
0
7
4
Figure 26: Recommended Gas Piping
32
0
5 .
n i
c
h
. w
. c
P
e r
½
¾
1
7
5
3
6
0
1
2
0
2
5
0
9
7
2
0
0
8
2
1
7
0
7
3
1
5
1
6
6
1
3
8
6
1
1
2
5
5
7
1
1
8
5
3
1
1
0
5
0
1
0
3
T
h
e r
a
d
e
d
F
t t i
n i
g
° 5
9
° 0
e T
, e
F
o l
w
o
w
T
h
o r
u
g
h
R
u
n
8
1
0 .
7
1
4 .
2 .
3
1
8 .
6 .
2
3 .
W
A
R
N
N I
u
s
e
m
a
c t
h
e
, s
c
a
n
d
g i
n
t i
o i
n
s
o
u
c r
. e
s
s
u
e r
D
o r
p
1
1
¼
6
8
0
1
4 ,
0
0
4
6
5
9
5
0
3
7
5
7
7
0
3
2
0
6
6
0
2
8
5
5
8
0
2
6
0
5
3
0
2
4
0
4
9
0
2
2
0
4
6
0
2
0
5
4
3
0
1
9
5
4
0
0
s
9
° 0
e T
, e
F
o l
w
T
h
o r
u
g
h
B
a r
c n
h
3
1 .
4
1 .
5
3 .
6
9 .
G
e l
, s
o
p
e
n
f
a l
m
e
, s
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