Overview
2-1/2 in. (63.5 mm) Aluminum NST Plug & Chain threads to fire department connection (FDC) inlets to prevent dirt, debris, and garbage from blocking a building's water supply during an emergency. While brass FDC components have been a target for metal thieves, this aluminum-made assembly is less susceptible to theft while still protecting threads and system components from moisture accumulation and damage.
This 2-1/2 in. (63.5 mm) Aluminum Plug & Chain utilizes National Standard Thread (NST), found in fire protection systems throughout the United States.
Specifications
Material: |
Aluminum |
Finish: |
Brass |
Thread Type: |
NST/NH |
Inner Diameter: |
2-7/8 in. |
Outer Diameter: |
3-3/16 in. |
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