How often should backflow testing be done?

6. 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 can cause a backflow test to fail?

Backflow prevention assemblies are designed to provide decades of protection. There are many regional conditions that can shorten the working life of a backflow preventer. Conditions such as excessive pressure, water quality, temperature or turbidity can all cause the assembly to deteriorate in its performance.

Do backflow preventers fail?

The addition of a hydraulically operated differential relief valve makes this device essentially fail-safe. During normal operation of an RPZ backflow preventer, the pressure between the two check valves—referred to as the zone of reduced pressure—is maintained at a lower pressure than the supply pressure.

What kind of valve does Anderson brass make?

Zinc free products and stainless steel solutions. We are leaders in Backflow Prevention both in brass and stainless steel. Kantleak™ Ball Valves provide double O-ring protection and a leak proof stem. This technology has been applied in many of our designs including designs for boating, trucking, instrumentation, and stack valves.

When was the Anderson brass manufacturing facility built?

Our modern manufacturing facility was built in 1982 and features state-of-the-art techniques from innovative design to efficient and low cost domestic manufacturing. As a leading brass valve and manifold manufacturer, we offer a wide range of products.

Where can I buy ABCO multi port stack valve?

ABCO has been active in the RV world for ten years, developing a new generation of RV valve solutions based on industrial knowledge and applications. Owners can buy our products directly at www.abcorv.com Multi-port stack valves feature two multi-port ball valves actuated through a common stem.

Where is Anderson Brass Company in Hartsville SC?

Anderson Brass Company is a family owned brass valve manufacturer located in Hartsville, South Carolina. Our modern manufacturing facility was built in 1982 and features state-of-the-art techniques from innovative design to efficient and low cost domestic manufacturing.