Giacomini A112 Flush Fire Department Inlet Connection User Manual

Product Overview

The Giacomini A112 is a flush fire department inlet connection featuring a back outlet body and clapper snoot design. Constructed from forged brass with a rough brass finish, it is designed for concealed exterior wall installations to interface directly with building fire protection piping.

• Auxiliary Inlet Connection: Used to supplement the water supply for building fire sprinkler and standpipe systems.

• Roof Outlet Connection: Capable of acting as an outlet connection for Class I and Class III services, providing a minimum flow rate of 250 GPM per outlet when fitted with control valves.

• Test Header: Serves as a test header arrangement for fire pump flow testing, allowing the discharge of high water volumes across multiple hose lines.

Configuration & Component Requirements

The A112 manifold body does not contain internal clappers. When configured as an inlet connection, Giacomini A91C clapper snoots must be installed on each inlet port to ensure proper check action and prevent backflow.

• Inlet Ports: 3-inch female NPT threads, configured with either 4 or 6 inlet openings.

• Back Outlet Port: 6-inch female NPT thread (or 8-inch female NPT when utilizing a 6-inch body with a factory 6-inch by 8-inch adapter).

• Discharge Control: When utilized as a roof outlet, each outlet requires control via an angle or straight hose valve, mounted directly or actuated remotely.

Installation Guidelines

The A112 is engineered for flush wall installation with its discharge outlet exiting out the back into the structure's riser or supply piping. All piping interfaces utilize standard female National Pipe Taper (NPT) threads.

• Piping alignment, joint sealing, and mounting heights must conform to NFPA standards and applicable local building codes.

• Ensure that inlet threads and installed A91C clapper snoot swivel mechanisms remain free of mortar, debris, or paint during structural finishing.

Operation & Maintenance

The A112 is a passive mechanical piping component with no electronic parts, reset latches, or adjustable controls. Waterway clappers in the attached snoots operate automatically based on incoming water pressure and gravity.

• Periodically inspect all inlet openings to ensure caps or plugs are in place and that waterways are clear of obstructions.

• Check that swivel connections on attached clapper snoots rotate smoothly.

• Inspect threaded connections and the forged brass body for signs of physical damage, corrosion, or leaks in accordance with standard fire protection inspection guidelines (such as NFPA 25).

Technical Specifications

Dimensions

The dimensions below correspond to the A112 flush fire department inlet connection back outlet body configuration with female NPT connections.