1
Q
.433
A
head loss per foot of elevation
2
Q
2.31ft
A
feet of elevation in 1 psi
3
Q
27.75in
A
inches of elevation in 1 psi
4
Q
8.34
A
weight of a gallon of water
5
Q
14.7
A
atmospheric pressure at sea level
6
Q
33.9
A
maximum water rise possible
7
Q
62.4
A
weight of a cubic foot of water
8
Q
80
A
maximum pressure allowed in a domestic water system
9
Q
35
A
height of a barometric loop
10
Q
psig
A
pounds per square inch gauge
11
Q
psia
A
PSI absolute
P
12
Q
PSID
A
PSI Differential
13
Q
safe water drinking act
A
1974
14
Q
world fair chicago
A
1933
15
Q
Absolute pressure
A
Total gauge pressure + atmospheric pressure
16
Q
what is considered hot water
A
120+
17
Q
what is considered excessive pressure
A
80psig
18
Q
cubic foot of water
A
62.4lbs
19
Q
1psi= X ft of head
A
2.32 feet of head
20
Q
1ft of head = X psi
A
.433
21
Q
A
backflow
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