BK/FTI

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Accessories

Backflow preventers (BK) and flow-to-isolation systems (FTI) are two commonly used accessoriesthat are used to protect plumbing systems and water supplies from contamination due to backflow from plumbing connections. These two systems are often used in residential, commercial, and industrial applications.

Backflow preventers are devices that are installed on plumbing connections to either prevent the flow of water in a reverse direction or to restrict it to a certain degree. These devices are usually made of valves that are designed to open in the direction of water pressure and close when water pressure reverses. This prevents contaminated water from entering the system or the public water supply.

Flow-to-isolation systems are designed to isolate a plumbing fixture or appliance from the rest of the system when backflow occurs. This devices isolate the fixture or appliance by installing a barrier between the fixture or appliance and the rest of the system. This barrier allows water to flow back out of the fixture or appliance, thus preventing contamination of the plumbing system or public water supply.

Both BK and FTI systems rely on basic principles of hydraulics and physics to function properly. BK systems are designed to operate under pressure and must be installed near piping connections or fixtures. The valves in these systems must be opened only when there is sufficient pressure in the line. This allows water to flow out of the line, but not back into it. FTI systems are designed to operate under gravity and must be installed below any connection or fixture. The valves in these systems must be opened only when there is sufficient weight of water pushing the valves open. This ensures that the water will flow away from the Public Supply towards the Fixture but not back towards the Public Supply.

The proper installation and maintenance of BK and FTI systems is crucial for the proper functioning and protection of a plumbing system. Both systems should be inspected regularly to ensure that they are operating properly. If a malfunction is detected, both systems should be replaced as soon as possible to prevent contamination of the water supply.

BK and FTI systems are critical components of any plumbing system. They provide vital protection for the public water supply and for the plumbing fixtures and appliances in a building. Properly installing and maintaining both systems is essential for the safety and protection of the public water supply and plumbing system.

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