If you are in the market for backflow prevention services, you may be wondering which type of system will best suit your home. There are a few types of backflow prevention devices to choose from, including the double check valve (DCT), pressure reducing zone (RPZ) valve, and DC backflow preventer. To make the most informed decision, contact a backflow prevention service today. Here is a breakdown of the advantages and disadvantages of each.
Backflow preventers powered by mechanical means
Mechanically powered backflow preventers prevent wastewater from entering drinking water systems. These devices automatically open and close valves to prevent backflow. Installed properly, these devices are extremely effective at preventing the backflow of water of unknown quality. For these reasons, they must be inspected annually. Depending on the size of your water system, you may need a mechanically powered backflow preventer in every pipe. Mechanically powered backflow preventers are an affordable option for businesses and home owners alike.
This backflow prevention device can be installed in your home or business and is required for certain types of cross-connection applications. It is installed on the water connection, meter, and point of transfer, and within the potable water system. Backflow preventers must meet strict performance standards set by approval agencies representing various levels of government. These requirements protect the quality and integrity of the drinking water supply. You should check your backflow preventer every year and replace it if it is not working properly.
Check valves on both sides
The Double Check Valve for Backflow Prevention Services is an integral part of the backflow prevention service. This type of valve prevents backpressure and polluted water from entering a system. These valves have an ergonomically designed body and a single access cover for in-line repairs. They are suitable for continuous pressure piping applications and cross-connections deemed non-hazardous. The features of these valves include bronze body construction, two independent positive seating check modules, NPT end connections, and quarter turn ball valve shutoffs. Additionally, they are compatible with different types of pipe, including septic systems.
The Double Check Valve Assembly was originally designed in the 1950s to protect fire departments. This type of backflow prevention service has two redundant check valves that close when the property side pressure exceeds the city side pressure. The relief valve is a secondary device that releases backflow water that is trapped in between pipes. This device is not intended for reverse water flow and is typically found in single-family homes.However, it is not always the best option for backflow prevention service.
Pressure reducing zone (RPZ) valve
A pressure reducing zone (RPZ) valve is a safety device used to prevent the backflow of water from clean to contaminated systems. Generally, this device consists of two independent check valves. When installed properly, RPZ valves allow water to flow in one direction while preventing it from flowing backward. These devices are used to protect water supplies from contaminated water or harmful compounds. These valves are often used in systems that move water around, like forced-air furnaces and boilers.
There are several different types of RPZ valves. Each one has its own unique design and requires a certified backflow prevention service to ensure its proper functioning. The test procedure will vary by state. Most testing companies will simply measure the pressure differences between two points. However, a qualified backflow prevention service company will test the entire assembly. Every year, the RPZ valve should be checked to make sure it is keeping water systems safe.
Backflow preventer with a reducing pressure zone (RPZ)
If you’re looking for a backflow preventer that protects your water supply, a DC or Reduced Pressure Zone backflow preventer is the way to go. These devices are more complex than other backflow prevention devices, but they are also among the most dependable.The basic components of a DC backflow preventer include an inlet shutoff valve, two independently operating spring-loaded check valves, a pressure differential relief device, and four test cocks. If you don’t need to protect city water or drinking water, you can simply install a single check valve.
A DC backflow prevention device protects against backflow, back-pressure, and backsiphonage. A DPZ device is 3rd party certified and consists of two mechanically independent check valves and a hydraulically dependent differential pressure relief valve. It also includes three vertical test cocks and two shut-off valves. A DC backflow preventer is easy to fix and does a great job of stopping backflow.
The RPZ backflow preventer
RPZ backflow preventer services will test the entire RPZ assembly to ensure it is functioning properly. These testing services are provided by PMC, a reputable calibration laboratory accredited to ISO/IEC 17025. In addition, we have access to Watts parts, which are necessary for repairing backflow prevention testers. We will test the whole RPZ assembly, and depending on the type of building, we will also figure out the recommended water pressure.
RPZ backflow preventer services include the installation, servicing, and maintenance of RPZ assemblies. These devices are often called “reduced pressure principle assemblies.” They protect potable water systems from contamination. They consist of an inlet shutoff valve, two independently operating spring-loaded check valves, a pressure differential relief valve, and four test cocks. These valves must be installed horizontally. If they are not installed properly, they could lead to contamination of the water supply.