Backflow Prevention Testing Procedures Flashcards
1
Q
What is test #1 on an rp
A
Determine relief valve opening point
2
Q
Pressure differential across #1 check valve
A
2 psi or higher
3
Q
Rp test # 2
A
Check Valve 2 closes tightly
4
Q
Rp test #3
A
Check valve #1 closes tightly in direction of flow
5
Q
Rp test #4
A
Line pressure
6
Q
Test one for dcva
A
Check valve 1 will close tight
7
Q
Test #2
A
Check valve 2 check for tightness
8
Q
PVBA test #1
A
Air inlet valve opening point
Opens at 1psi or more
9
Q
Pvba test 2
A
Check valve closes in direction of flow
10
Q
A
11
Q
A leaky check valve 2 will cause
A
Relief to dump
12
Q
A
