2022年1月27日 · Systems subject to freezing must have an automatic drain valve, also called a ball drip, at the lowest point of the FDC so that any water left in the system will safely drain out instead of freezing.

NFPA 13R, 13 and NFPA 14 differ slightly in how they each address requirements of the fire department connection. Below is a summary of requirements from the 2002-2019 editions of NFPA 13 and 13R, and the 2000-2019 edition of NFPA 14.

2020年5月28日 · The FDC is the fire department connection portion of a fire sprinkler system or standpipe system. Its role in ensuring the effectiveness and success of a fire sprinkler system to suppress a fire is pivotal.

Located outside the structure, FDCs allow firefighters to connect hoses during a fire to supplement or, in some cases, completely supply the water that a fire protection system needs to do its job. Fire codes require building owners to maintain FDCs, so they work in an emergency.

2019年8月28日 · What is Fire department connection (FDC)?! A connection through which the fire department can pump supplemental water into the sprinkler system, standpipe, or other water-based fire protection systems, furnishing water for fire …

2020年9月4日 · The most common solution is to drain the entire system, turn the fire department connection (FDC) check valve around and flush through the FDC. This is very time consuming and, in many cases, the FDC check valve is buried in a …

2019年8月28日 · What is fire department connection?! According to NFPA 14 - 2019 edition, Fire department connections is a connection through which the fire department can pump the primary water supply to a manual standpipe system or the secondary water supply to an automatic standpipe system at the required system demand.

In case of a fire, the local fire department connects its discharge hose line to the FDC Connection, ensuring a continuous and pressurized water supply to meet the demands and suppress the fire. The presence of an FDC Connection is crucial in scenarios where in-house water supply must be enhanced to support and maintain adequate water supply.

2020年1月31日 · When is the auto ball-drip required on the hookup (dry) side of the check valve for a Fire Department Connection? In areas prone to freezing, there is the FDC, then a dry portion of pipe, then the check valve. If the check valve is located higher than the FDC (as is typical for our FDCs near risers), can't the connection itself drain the dry ...

2019年8月14日 · Why are fire department connections (FDCs) so important to a suppression system? They are the link between initial response and supplemental help. Despite appearances, sprinkler systems are not intended to discharge forever. Their goal is to suppress long-enough that firefighters can take over and finish the job.