Saddle River NJ – Types of Backflow Prevention Devices

Backflow prevention devices, which come in several different varieties, are designed to prevent unclean water from flowing into clean municipal water supplies. This occurs when a difference in water pressure arises, which can happen in the event of a burst pipe, broken water main, or even the use of a nearby fire hydrant.  State and local regulations, including the New Jersey Clean Drinking Water Act, require certain buildings and houses to be equipped with a backflow prevention device. To find out more about backflow device installation in Saddle River, NJ, including installation, repair, testing, and more, give us a call today at 2Plumbers.

The New Jersey Clean Water Act mandates that certain buildings must have them installed, and must have them tested periodically. These devices are most commonly used in Saddle River, New Jersey homes and businesses that have a large boiler, fire suppression system, or an irrigation system for the lawn or landscaping. Boiler tanks and fire suppression systems have water standing in them for large periods of time, allowing sediment and minerals to leech into the standing water, and providing a place for bacteria to grow. Irrigation systems can introduce pesticide chemicals and fertilizers into drinking water. This can happen in the event of a burst water main, major plumbing leak, or even the use of a nearby fire hydrant.

Types of Backflow Prevention Device

There are several types of valves used for backflow prevention in Saddle River. These are generally manufactured by companies including Febco, Wilkins, and Conbraco, and can be installed by a  NJ plumber licensed and certified in backflow prevention devices. Commonly used types of backflow prevention valves include reduced pressure zone (RPZ) valves, pressure vacuum breaker (PVB), and double-check assembly (DCA).

  •  Pressure vacuum breaker (PVB) valves are a relatively common, inexpensive solution to backflow prevention. They consist of an inlet shutoff valve, a valve body containing a pressure breaker, check valve, and test cocks, and an outlet shutoff valve. PVBs are relatively quick and simple to install, and are often designed with built-in freeze protection. However, they can occasionally eject some water when in use, and need to be located at least a foot above They also prevent back-siphonage of water, but not back-pressure, and aren’t always suitable for installation at certain locations.
  • Double-check assembies (DCA) are generally installed vertically, and are used in underground or indoor applications. Unlike PVB valves, they can be installed below ground level. They cannot be used with chemigation, which involves using irrigation systems to introduce fertilizers, pesticides, and herbicides to an area.
  • Reduced pressure valve (RPZ) assemblies are more complex than DCA and PVB valves, but are also considered to be the most reliable and effective. Local codes can vary on how they’re allowed to be installed, and they can be installed either “straight” or “inline” (vertical). They’re designed to be compatible with both above-ground and below-ground installation, and they’re equipped to protect against back-pressure as well as back-siphoning.

Backflow prevention devices are required by building codes in many houses and buildings, and all types need to be tested periodically to make sure they’re functioning correctly. To find out more about backflow prevention in Saddle River, New Jersey, give us a call today at 2plumbers, at 201-765-0466, we are certified NJ backflow testers.

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