The fire department connection also commonly known as the siamese connection is an important component found on most sprinkler and standpipe systems. This connection allows the fire department to supplement.
Drypipesystem Jpg 640 376 Pixels Fire Sprinkler System
Fire department connection diagram. Npt auto sprinkler double clapper siamese connection bottom outlet. Automatic systems are the most commonly found systems in high rise buildings. Male nst continuous swivel elbow. A simple engineering diagram of fire. When a sprinkler system activates the fire department connects hose lines from a pumper truck to the fire department connection. Indian school road scottsdale az 85251.
Some fire department connections will present a. Where the fire department connection does not serve the entire building a sign shall be provided indicating the portions of the building served. A fire department connection fdc is a connection through which the fire department can pump supplemental water into the sprinkler system standpipe or other system furnishing water for fire extinguishment to supplement existing water supplies fdcs are required on all. Planning zoning requests general plan p. The fire department connection fdc also know as the siamese connection is an important component found on most sprinkler and standpipe systems. The fire department would have to supply the fire department connection fdc to have pressure on its attack lines.
Female npt x 1 12 in. The check valve also prevents other sources of water flow into the system such as through a fire department connection from flowing back into the fire pump. Nfpa 20 requires that the pressure rating of the discharge components including all pipingfittings and valves be adequate for the maximum total discharge pressure with the pump. One stop shop permits and plan review p. Dixon 1 12 in. The fire department connection will typically present two 2½ inch female hose outlets into which the fire department can connect supply hoselines.
The purpose of the sign is to provide the responding firefighters with the correct information on which por tions of a building are served by the fire department connection. The fire industry has lingo for all kinds of equipment and one term that is often used is siamese connection this fire department connection fdc features two twin female inlets that are attached at an angle to the body hence the term siamese and it plays an essential role in providing supplemental water to sprinkler and standpipe systems. Nh nst x 6 in. 480 312 2356 inspections permit inspections p. Click on a sub category below to further refine your search.