4" x 2-1/2" x 2-1/2" 90° Siamese Fire Department Connection (Brass, NST)

Product Overview

This 90° Siamese Fire Department Connection (FDC) features a right-angle body design that allows firefighters to connect two hose lines into a building's standpipe or sprinkler system. With dual 2-1/2" female NST swivels and a 4" male outlet, this compact and durable connection is ideal for wall-mount installations where space is limited.

Key Features:

• Configuration: (2) 2-1/2" Female NST Inlets x 4" Male NPT Outlet
• Angle Design: 90° body with upright inlets for compact mounting
• Material: Heavy-duty cast brass construction
• Inlets: Swivel adapters with pin lugs and internal clappers
• Outlet: 4" Male NPT or flange (UL/FM models available)
• Finish: Rough brass (optional chrome-plated models available)
• Pressure Rating: 300 PSI working pressure
• Includes: Optional plugs and chains for inlet protection
• Certifications: UL Listed, FM Approved (check model)

Applications:

• Fire Department Hose Connections to Standpipes
• Wall-mounted risers in commercial buildings
• Garage, warehouse, high-rise, and mixed-use installations

Specifications:

• Body Style: 90-degree elbow with straight-facing inlets
• Inlet Size: 2-1/2" Female NST (National Standard Thread)
• Outlet Size: 4" Male NPT or Flanged
• Material: Cast Brass (Chrome optional)
• Optional Features: Caps, chains, wall plate, check valves

This 90° Siamese connection is engineered for fast and reliable hookup during fire emergencies. Its rugged brass body and UL/FM compliance make it a trusted choice for contractors and fire protection specialists.