Caps & Plugs

For quickly responding to a blaze, hydrants, standpipes, Fire Department Connections (FDC) and other water sources need to be free of dirt, debris and other obstructions. Fire plugs and caps perform this role, acting as a shield against potential blockages and ensuring access to a reliable flow of water during an emergency.

What Fire Caps and Plugs Do

Sprinklers have a finite water supply. So that firefighters can efficiently and effectively address the flames, connection points are located outside of buildings or, in the case of hydrants, on the street.

Fire caps and plugs shield these openings. Without this coverage, trash, accumulated dirt or even an animal's nest can clog this port designed to provide a supply of pressurized water. This factor either delays or restricts the water supply available and ultimately affects how soon firefighters extinguish the blaze.

The Difference Between a Fire Plug and a Cap

Fire plugs and caps both play a protective role. However, caps typically have a bolted, breakable design you'll crack with an axe. With a threaded design, plugs attach via a chain or lock in place and are intended for repeat use. As a result, fire plugs feature thicker construction requiring a wrench for removal.

Common materials for fire caps and plugs include:

  • Aluminum, known for being lightweight, durable and corrosion resistant.
  • Brass, a sturdy heat- and corrosion-resistant material.
  • Plastic, a lightweight, non-conductive, corrosion-resistant and economical solution.

Order Fire Plugs and Caps From Fire Safety USA

Find the right fit for your community's or facility's FDC, hydrant or standpipe from Fire Safety USA's selection. Browse all fire plugs and caps, including threaded and Storz options, before placing an order online, through our call center or via our direct fax line.

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