5 Backflow Devices You Need to Know About
- By adam@backflowtestingrepairllc.com
- •
- 04 Jan, 2021
- •
Water in your house or any other building usually flows in one direction. However, sometimes, the flow of water changes, and potentially contaminated water mixes with potable water, resulting from backflow.
Backflow can be a severe health hazard as unidentified substances contaminate clean water, leading to the unchecked spread of water-borne diseases. Properly installed and maintained Backflow Prevention Assemblies can prevent such a situation from occurring.
Here, we give you a low-down on five of the most common backflow prevention assemblies you can find on plumbing systems.
Atmospheric vacuum breakers (AVBs)
Pressure vacuum breakers (PVBs)
Spill-resistant vacuum breakers (SVB)
Double-check valve assembly (DCV)
DCVAs are standard backflow prevention devices that you can use for low hazard situations such as in fire sprinkler systems without chemicals. They are often installed in underground valve boxes or vaults near the water meters. They have an inlet and outlet shut-off valve and two spring-loaded checks in line with one another.
DCVAs provide protection against both backpressure and back siphonage. However, they cannot be used in high-hazard situations.
Reduced pressure principle backflow assembly (RP)
Also known as reduced pressure zone assembly, it is one of the most reliable and safe backflow preventers available in the market, but this safety comes at a higher price.
They are equipped with an inlet shut-off valve, two spring loaded checks, four test ports, and an outlet shut-off valve. They also have mechanically independent relief valve to maintain a lower pressure between the #1 and #2 check valves called the zone. The best part about RP backflow prevention assembly is that they can protect against all backflow situations including back siphonage and backpressure all in one go, making them an ideal option for high-hazard areas.
Are you looking for backflow assembly maintenance or repairs?
If yes, then you don't need to look any further. Backflow Testing & Repair LLC is your one-stop destination for all your backflow needs. We offer the best backflow testing service, repair, prevention, etc. You can reach out to us at (979) 215-1169 or fill our online form for any queries.
