Aqualine FP-CAP25 Brass Fire Hose Cap Chain 2.5in Fnst

Product Description

The AQUALINE FP-CAP25 is a 2.5-inch female National Standard Thread (FNST) brass fire hose cap with attached security chain. This cap threads onto fire hose connections, standpipe outlets, and fire department valve ports to protect the threads and seal the outlet when not in use. Constructed from brass, it provides corrosion resistance and durability in wet or outdoor environments. The integrated chain keeps the cap secured to the fitting so it remains on-site and ready for use. Installation requires no special tools and is handled by fire protection technicians, plumbers, or facility maintenance personnel.

This fire cap is used on standpipe systems, fire department connections, hose bibs, and suppression system outlets in both residential and commercial settings. It is a standard component in fire protection system maintenance, used wherever 2.5-inch FNST threaded outlets require capping between inspections, hydrostatic tests, or active fire events. The attached chain prevents the cap from being misplaced during servicing.

Key Features

• 2.5-inch FNST threading for standard fire hose and standpipe connections
• Brass construction for corrosion resistance and long service life
• Attached chain keeps cap secured to the outlet fitting
• Lightweight at 0.81 pounds for easy one-hand installation
• No tools required for installation or removal

Compatibility

Designed as an OEM-style replacement or standard cap for 2.5-inch female National Standard Thread fire hose outlets and standpipe connections.

Installation Notes

Installation is typically performed by licensed fire protection contractors or plumbers. Ensure the system is depressurized and the supply valve is closed before removing or installing any cap on a pressurized line. Thread the cap on by hand until snug, taking care not to cross-thread or overtighten brass fittings. Work must comply with applicable fire codes including NFPA 14 and local authority having jurisdiction (AHJ) requirements.

Technical Specifications

• Connection Size: 2.5 inches
• Thread Type: FNST (Female National Standard Thread)
• Material: Brass
• Weight: 0.81 pounds
• UPC: 843687101550

Standard Information

• Brand: AQUALINE
• Manufacturer Part Number: FP-CAP25