Imperial Mfg Group Usa Inc BM0075 Black Flue Reducer

Product Description

The IMPERIAL MFG GROUP USA INC BM0075 is a 24-gauge black steel flue reducer designed to transition between two different flue pipe diameters in single-wall black stovepipe and vent connector systems. The large end measures 6 inches and the small end measures 5 inches, with the small end crimped for straightforward male-end insertion into the next pipe section. This reducer is a standard component used by HVAC technicians and installers working on solid-fuel appliance venting, wood stove installations, and gravity-vent connector runs where a step-down transition between pipe sizes is required.

This flue reducer is suited for residential and light-commercial applications involving single-wall black stovepipe vent connectors. It is typically installed between a larger-diameter appliance collar or flue section and a smaller-diameter continuation of the vent run. The crimped small end allows the reducer to insert directly into a standard 5-inch female-end fitting without additional modification. Installers working on wood stoves, pellet stoves, and similar solid-fuel appliances commonly use this type of fitting to match flue sizing to the appliance outlet or to adapt to an existing vent system.

Key Features

• 6-inch to 5-inch diameter reduction for single-wall black stovepipe systems
• 24-gauge black steel construction for standard vent connector service
• Small end crimped for direct insertion into compatible 5-inch female-end fittings
• Sold in a package quantity of 12 units, suitable for stocking or multi-unit jobs

Compatibility

Designed as an OEM-style replacement and standard fitting for single-wall black stovepipe vent connector systems requiring a 6-inch to 5-inch diameter transition.

Installation Notes

Installation should be performed by a qualified HVAC technician or installer in accordance with the appliance manufacturer instructions and applicable local codes, including NFPA 211 for solid-fuel venting. Shut down and allow the appliance and existing flue to cool completely before beginning any work on the vent connector. The crimped small end inserts into the female end of the adjoining 5-inch pipe section and should be secured with appropriate sheet metal fasteners. Do not use single-wall black stovepipe fittings as a substitute for listed double-wall or Type B vent components where those are required by code.