Quick Answer: What Is An FDC Used For?

Does a washing machine need a standpipe?

Proper Standpipe Height Most washing machines require a standpipe with a height of at least 36 inches.

Check your manual to find out the requirements for your particular unit, and ensure your standpipe meets this minimum requirement.

Placing your standpipe too low or too high can cause backflow and overflow..

What are the five types of standpipe systems?

Firefighting Back-to-Basics: Standpipe SystemsWet system. Here, water is in the pipes at all times and is supplied by a water source. … Automatic dry standpipe. Here, there is always air stored inside the standpipe at a constant pressure. … Semi-automatic dry standpipe. … Manual dry standpipe.

Which type of heat detector must be replaced after activation?

1. Nonrestorable fixed-temperature, spot-type heat detectors are required to be replaced after 15 years from initial installation [see NFPA 72(10), Table 14.4.

What does activation of a water motor gong indicate?

What does activation of a water-motor gong indicate? Water flowing in the system.

What do you pump an 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 on a building?

Fire Fire Department ConnectionPage 1. 2009 Building Code Basics: Fire. 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.

How does a standpipe work?

Within the context of a building or bridge, a standpipe serves the same purpose as a fire hydrant. … The standpipe is then “sunk” into the hydrant, and the hose is connected to the exposed ends of the standpipe. The bar is then combined with the key, and is used to turn the hydrant on and off.

How does a fire riser work?

As a fire sprinkler discharges, water flows out of the pipe, or branch line, it’s connected to. When that happens, water moves through the system riser to refill the branch line. These changes in flow and pressure are monitored at the riser by electronic devices called water flow switches.

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.

How many 2 ½ inch 65mm connections are required for each FDC?

Connection requirements by system type Montgomery County AHJ requirements for Fire Department Connections(s), FDC, shall consist of two (2) – 2 ½ in. (65mm) connections using NH internal threaded swivel fittings with “2.5 – 7.5 NH standard thread,” as specified in NFPA 1963, Standard for Fire Hose Connections.

What is a post indicator valve?

What is a PIV? In short, post indicator valves (PIVs) are sturdy, above-ground access and operator valves used for automatic sprinkler systems and wet standpipe systems whose main water supply valves are located underground.

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 part of a ground cover fire spreads the most rapidly and usually does the most damage?

headThe head is the part of a ground cover fire that spreads most rapidly. Usually found opposite the origin in the direction the wind is blowing. The head burns intensely and does the most damage. Usually, the key to controlling the fire is to control the head and prevent the formation of a new head.

What pressure should I pump my standpipe?

The minimum pressure while flowing the required standpipe flow (500 gpm from the hydraulically most remote standpipe and 250 gpm from each additional standpipe, up to a maximum of 1000 gpm for a fully sprinklered building) shall be 75 psi at any valve outlet while flowing 250 gpm through each valve.

What is the most common standpipe system?

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

Where should the 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.

What is the difference between standpipe and sprinkler?

Some older buildings only have standpipe systems while many newer buildings will have a combination system, which supplies the fire sprinkler system and the standpipe system. Standpipe systems are designed to provide fire protection water for hose lines in strategically placed locations inside a building or structure.