What type of sprinkler system is not required to have a fire department connection?

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 is an auto sprinkler connection?

This is a connection on the exterior of a commercial building where a responding fire department can attach a fire hose and pump water into the building’s stand pipe system supplementing the water pressure to the buidling’s sprinkler system.

Where should the fire department connection FDC be located in relation to the sprinkler control valve?

3.1 says that the FDC shall be on the system side of the water supply check valve. This provision refers to the inlet, piping, check valve, etc. as being one unit. The sizing of all these components from the connection to the sprinkler system to the inlet shall be determined by 13(99) 5-15.2.

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Which is the most common type of FDC connection?

One of the most common FDCs, known as a Siamese or two-way connection, has two 2 1/2-inch female swivel connections. NFPA requires that all fire department connections use 2 1/2″ National Hose (NH) threaded female couplings unless the authority having jurisdiction designates another specific connection type.

What are fire department connections used for?

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.

How high can a fire department connection be off the ground?

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.

What pressure do you pump a sprinkler system?

Setting the fire department pumper engine pressure 50 psi below the building system pressure will allow the building pump to stay running and do the job as long as it can. A pressure drop in the system of more than 50 psi is a good indication of a substantial amount of water flowing.

What is the most common standpipe system?

A “Class I” standpipe is the most common type of fire protection standpipe system today.

What is a NFPA 13R 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.

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What is an FDC sign?

Fire Department Connection ( FDC ) signs allow for fire department personnel to easily determine the location of a building’s water supply port in event of a fire. Glow-in-the-dark signs ensure the fire department can easily find connections during an emergency or blackout.

What do you pump a FDC at?

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.

What does FDC mean?

FDC

Acronym Definition
FDC Fire Direction Center
FDC Freedom from Debt Coalition (Philippines)
FDC Federal Detention Center
FDC Fault Detection and Classification

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Which device activates the building fire alarm when water is flowing in a sprinkler system?

Vane or paddle type waterflow detectors and pressure type switches are used to detect the flow of water in a fire sprinkler system and to send an alarm signal. Valve supervisory switches are used to monitor the open or closed position of the valves that control the water supply in the fire sprinkler system.

Is a standpipe a fire hydrant?

Within the context of a building or bridge, a standpipe serves the same purpose as a fire hydrant. The bar is used to lift a cover in the road, exposing the hydrant. The standpipe is then “sunk” into the hydrant, and the hose is connected to the exposed ends of the standpipe.

What is a standpipe system?

Standpipe systems are a series of pipe which connects a water supply to hose connections that are intended for fire department or trained occupant use. At times building are provided with only piping for the standpipe system.

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