4" 2-1/2" SFDC Straight RB Fire Department Connection

The Viking 4" x 2-1/2" Straight RB Fire Department Connection serves as an exterior auxiliary water supply inlet for commercial fire protection systems. Installed on the building exterior, this assembly allows fire departments to pump supplemental water directly into wet pipe sprinkler, dry pipe, or standpipe systems during an emergency event to boost system pressure and volume.

Engineered to comply with applicable NFPA standards for fire department connections, this component satisfies rigorous life safety and building code requirements for commercial fire protection infrastructure. The single internal brass clapper design ensures positive sealing and prevents backflow from the system when fire department hoses are not actively engaged.

• Solid Brass Body: Heavy-duty cast brass construction provides exceptional corrosion resistance and mechanical durability in harsh outdoor environments.
• Dual Inlets: Features dual 2-1/2-inch pin lug inlets compatible with standard municipal fire department hoses and equipment.
• Internal Clapper: Incorporates a precision-engineered single brass clapper and seats to maintain a tight seal during normal system operation.
• Optimized Weight: Weighs 8.11 lbs, striking an optimal balance between structural robustness and manageable handling during installation.

Contractors must verify all local Authority Having Jurisdiction (AHJ) requirements, thread types, and positioning guidelines prior to installation. Ensure all piping and connections align with project submittal drawings and manufacturer specifications.

Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)