Angled Exposed 4 in. (101.6 mm) NPT x 2-1/2 in. (63.5 mm) NST x 2-1/2 in. (63.5 mm) NST Cast Brass 'Auto Spkr' Fire Department Connection (FDC) saves lives and property when closed valves, natural disasters, pressure loss, or other problems interrupt the supply of water to fire sprinkler and standpipe systems. With a single-clapper design, cast brass finish, and solid brass components, this UL & FM approved FDC supports firefighting efforts by providing local fire officials with inlets used to pump water to fire sprinklers or in-building hose connections when primary water sources, such as a water supply tank, are exhausted.
Add-on parts for this exposed 4 in. (101.6 mm) NPT x 2-1/2 in. (63.5 mm) NST x 2-1/2 in. (63.5 mm) NST Cast Brass FDC are available in the drop-down menu above. First option is a 4 in. diameter (101.6 mm) 'Auto Spkr' brass identification plate and two 2-1/2 in. brass plugs and chain. Second option is a 4 in. 'Auto Spkr' aluminum identification plate with two 2-1/2 in. aluminum breakable caps. This product may be installed as a freestanding FDC when purchased with the optional 4 in. (10.2 cm) diameter by 18 in. (45.7 cm) high polished brass sleeve.
Exposed 4 in. (101.6 mm) NPT x 2-1/2 in. (63.5 mm) NST x 2-1/2 in. (63.5 mm) NST Cast Brass FDC inlet swivels utilize National Standard Thread (NST) and connect easily to fire hose connections throughout much of the United States.
The National Pipe Thread (NPT) outlet installs to a wide range of plumbing and pipe fittings to streamline replacement of a broken, corroded, or unserviceable FDC. This single-clapper NPT x NST fire department connection is a cost-efficient way to meet fire department inlet requirements. The independent, pressure-operated single clapper swings freely to cover an unused inlet when water flows.
This Exposed 4 in. (101.6 mm) NPT x 2-1/2 in. (63.5 mm) NST x 2-1/2 in. (63.5 mm) NST Cast Brass 'Auto Spkr' FDC is ready for use with sprinkler systems in schools, high-rise buildings, apartment complexes, manufacturing facilities, and a wide range of other NFPA-compliant buildings. The circular center of the body has a diameter of 10-1/4 in. (260.35 mm) by 4-1/4 in. (107.95 mm) tall with 4-1/4 in. (107.95 mm) between the body's center and the outside edge of each swivel. Each 2-1/2 in. (63.5 mm) inlet can supply up to 250 gallons per minute (GPM), delivering a total supply of up to 500 GPM.
Buildings requiring flows greater than 500 gallons per minute in accordance with NFPA 13 and NFPA 14 will need additional inlets, provided by additional single or double-inlet FDCs, or by installing a three-way, four-way, or six-way FDC. Buildings requiring flows greater than 500 gallons per minute in accordance with NFPA 13 and NFPA 14 will need additional inlets, provided by additional single or double-inlet FDCs, or by installing a three-way, four-way, or six-way FDC.
Material: |
Brass |
Finish: |
Brass |
FDC Pattern: |
Angled |
Thread Type: |
NPT x NST x NST |
Lettering: |
Auto Spkr |
FDC Clapper: |
Single Clapper |
