What is the purpose of a fire department connection?

When a sprinkler system activates, the fire department connects hose lines from a pumper truck to the fire department connection. This connection allows the fire department to supplement the fire protection system in the event of a fire.

How does an FDC connection work?

The Fire Department Connection, also commonly known as the siamese connection, is an important component found on most sprinkler and standpipe systems. When a fire sprinkler system activates, the FDC provides a means for firefighters to connect hose lines to supplement the fire sprinkler system’s domestic water supply.

Is FDC required?

A fire department connection (FDC) is required for most NFPA 13 and 13R automatic sprinkler systems and standpipe systems. They are not required for automatic sprinkler systems protecting one- and two-family dwellings and townhomes.

What does a siamese connection do?

A siamese connection or splitter in fire protection engineering is a pipe fitting that allows two or more fire hoses to be connected to a single standpipe riser at the same general location. It is so-called due to the visual similarity to siamese twins.

IMPORTANT:  How do you know when campfire is out?

How high should a fire department connection be?

Fire department connections (FDC) shall be located not less than 18 inches and no more than 48 inches above the level of the adjoining ground (NFPA 14 Section 6.4. 6).

What is the purpose of a fire department connection quizlet?

What is the purpose of a Fire dept connection(FDC)? Allows FIre dept to pump supplemental water into a standpipr system or sprinkler system.

What is a fire department connection Clapper?

Clappers guide water through fire department connections

On an FDC with two or more inlets, clappers allow firefighters to add or remove hoses as needed. If the flow of water to one hose stops (or a hose bursts) a clapper will close to prevent backflow.

What is the purpose of a post indicator valve?

Installed in the main water line serving a building, the Post Indicator Valve (PIV) is a valve used to control the water supply to the fire sprinkler system. Most commonly a raised post, the PIV is found in the yard near the building or mounted on the outside of the building.

Which class of standpipe is intended for fire department use only?

Automatic Dry Standpipe system is only designed to have water in the system piping when the system is in use. Manual Dry Standpipe system are exclusively for fire department use and require a fire department pumper to supply the need pressure and water supply through a fire department connection.

What is a wet standpipe?

Wet standpipe

A “wet” standpipe is filled with water and is pressurized at all times. In contrast to dry standpipes, which can be used only by firefighters, wet standpipes can be used by building occupants. Wet standpipes generally already come with hoses so that building occupants may fight fires quickly.

IMPORTANT:  How do you clear your lungs of wildfire smoke?

What is the difference between a wye and a Siamese?

What is the difference between a Wye and a Siamese? A wye is an appliance that flows from one line into two. A siamese is an appliance that flows 2 or more lines into one.

What does FDC mean in Florida?

FDC stands for Fire Department Connection. It is part of a fire sprinkler system or standpipe system. Though easily overlooked by most, the FDC’s role in ensuring the effectiveness and success of a fire sprinkler system to suppress a fire is pivotal.

What pressure do you pump through a FDC?

All pumpers will pump their capacity at 150 psi at the pump, so increase the throttle slowly until your discharge pressure is at 150 psi while being careful not to run away from your water supply. If your pumper is equipped with a multi stage pump, place the pump in the volume stage.

What is a NFPA 13 sprinkler system?

NFPA 13R is a residential sprinkler design standard focused on low-rise residential occupancies. The Standard’s intent is to provide a sprinkler system that aids in the control of residential fires and provides improved protection against injury and life loss in multi-family dwellings.