Where should a backflow preventer check valve be installed?

Where is the Backflow Preventer Located? You should have your backflow prevention assembly installed inside an above-ground enclosure. It’s the safest and most cost-effective place to put it.

Is a double check valve the same as a backflow preventer?

A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. Secondly the closure of one valve reduces the pressure differential across the other, allowing a more reliable seal and avoiding even minor leakage.

How high does a backflow preventer need to be?

Backflow preventers installed inside must be a minimum distance of twelve (12) inches above the floor, and no higher than four (4) foot above the floor, with adequate clearance around the backflow preventer for testing and/or repair.

Do I need a reduced pressure backflow preventer?

Reduced pressure zone devices provide the highest level of protection for your water supply. That’s why most municipalities and engineers across the country are requiring the use of these types of backflow prevention devices. In fact, many areas are now requiring their use on all domestic and fire service lines.

What type of backflow preventer is required for irrigation?

Anti-siphon valves
Anti-siphon valves are the most common type of backflow preventer used on residential irrigation systems, primarily because they are simple and inexpensive. Some municipalities do not allow the use of anti-siphon valves, so it is best to check with the water company first.

Can a check valve be used as a backflow preventer?

A check valve provides a basic form of backflow prevention, preventing water from flowing in the wrong direction. National Fire Protection Association (NFPA) model codes and standards require them in various places on fire protection systems, and check valves are essential components of backflow preventers.