What does DCVA stand for?
DCVA
| Acronym | Definition |
|---|---|
| DCVA | Double Check Valve Assembly |
| DCVA | Delaware Commission of Veterans Affairs (Delaware Department of State) |
| DCVA | Disabled Crime Victims Assistance (Fort Worth, TX) |
| DCVA | Dry Creek Valley Association (Healdsburg, CA) |
What is the difference between a DCDA and a DCVA?
The Double Check Valve Assembly (DCVA) is used for a typical large business, condominium or high-rise building. The Double Check Detector Assembly (DCDA) is installed on a line that supplies water to the fire suppression system (fire sprinklers or standpipes) of a building.
What causes a backflow to fail?
The faulty first check valve is one of the most common problems that could cause your backflow preventer to fail. The space between the first and second check valves is freed up by the opening of the first check valve in a reduced pressure backup preventer.
How long do backflow devices last?
How often does my backflow preventer need to be tested? Reduced Pressure Zone (RPZ) assembly needs to be tested annually and rebuilt every 5 years. Double Check Valve (DCV) assembly needs to be tested every 3 years.
What causes a backflow preventer to dump water?
The most common causes are small leaks are debris like dirt, sand, or small rocks causing a blockage inside the valve. Open up the pipes and clean the inside of the valve with running water or a can of compressed air if you have one handy.
What is DCVA testing?
Note: leaked indicates the gauge reading dropped to 0. When testing a DCVA, the differential pressure gauge reading being measured is the difference between the supply pressure on the upstream side of the check valve and the atmospheric pressure on the downstream side of the check valve.