Yup Flashcards
Can A RP be installed Vertically?
Yes, If approved
What is the purpose of A DCVA bleed-off valve?
SO Valve 1 is leaking
Do i need a bleed-off valve to test a PVB or SRPVB?
Only if SO 1 is passing by in the closed position
What is the testing procedural step that is common to the RP, DCVA, PVB and SRPVB?
Attach High side Hose to TC #2
Prior to recording air inlet fully open requires_____________. (PVB)
Draining water from the Valve body (completely)
What is the differential pressure between CV 1 and RVOP?
Buffer/ Minimum 3psi
When testing a DCVA using a sight tube how long is the tube?
36”(must be able to have 28” of water above the centerline of downstream TC’s)
When testing a DCVA using a sight tube how high is water in the tube for CV to pass?
Must be hold 28” above centerline of TC 3 or 4 for 2 minutes
When performing test #1 on CV 1 of a DCVA where is the vertical tube connected?
TC - 3
When performing test # 2 on CV 2 of a DCVA where is the tube connected?
TC-4
When testing a DCDA what are the requirements?
2 forms and record all pressure losses
How Does a PVB check valve work?
Closes in the direction of flow maintaining a 1 PSI differential
If CV 2 failed while testing a RP what would the gauge read?
RV opening point pressure
What is the purpose of flushing Test Cocks?
To remove any foreign material or debris
What is happening if while testing a DCVA after you open TC 3 water flows continuously?
SV 1 leaks
