The 180 to 150 mm vitreous enameled coupling is an essential plumbing and heating accessory for ensuring a tight, safe, and efficient connection in flue systems. Designed specifically for stoves, fireplaces, and boilers, this reducing adapter allows for the seamless connection of pipes of different diameters without compromising flue gas performance.

Made from high-quality steel and coated with a vitreous enamel finish inside and out, this sleeve offers exceptional resistance to high temperatures, corrosion, and the acidic condensate generated during combustion. Its vitreous enamel finish not only extends the installation's lifespan but also greatly simplifies cleaning and maintenance by preventing excessive soot buildup.

This duct is quick and easy to install thanks to its optimized design for a perfect fit between 180 mm and 150 mm pipes. Whether for new installations or the renovation of existing heating systems, this sleeve ensures the necessary airtightness to meet the most demanding safety standards for flue gas outlets.

Features of the Vitrified Sleeve 180-150 mm

• Product type: Chimney pipe reduction sleeve.


• Inlet diameter: 180 mm.


• Outlet diameter: 150 mm.


• Manufacturing material: Durable steel with vitreous enamel coating.


• Thermal resistance: High tolerance to extreme temperatures and thermal shock.


• Corrosion protection: High durability against acid gases and condensate.


• Manufacturer reference: B10804794.


• Recommended use: Wood stoves, fireplaces, boilers and flue gas evacuation ducts.

Frequently Asked Questions

What exactly is this vitrified sleeve used for?

This sleeve acts as a transition or reduction piece, allowing a 180 mm chimney pipe to be safely and watertightly connected to a 150 mm pipe, adapting to the specific needs of your heating installation.

Is it resistant to the high temperatures of a wood stove?

Yes, it is made with enameled and vitrified materials expressly designed to withstand the continuous high temperatures generated by wood stoves, fireplaces and boilers without suffering deformations or structural damage.

Can it be installed outdoors?

The vitrified coating offers excellent protection against corrosion and weathering, although it is mainly recommended for interior sections or well protected within the drainage system to ensure maximum product durability.

How is this duct maintained?

Thanks to the smooth surface of its vitreous enamel, soot and combustion residues adhere less, which significantly simplifies the work of chimney sweeping and periodic cleaning of the chimney pipe.