Enlarger ø150 male ø250 female with seal

Stainless steel 316L increaser for the IE single-wall flue system, from a smaller to a larger diameter between Ø60 and Ø300, with seal and spigot/socket ends.

An increaser, also called a transition piece or adapter, joins two flues with different diameters in a flue gas tight way, for example Ø110 onto Ø130. You use it in renovations, when an existing installation has to connect to a different pipe diameter, or when connecting to an existing chimney. The male end (spigot) has the small diameter, the female end (socket) the large one. With the seal the joint is flue gas tight under positive pressure P1, up to 200 Pa. It fits horizontal and vertical runs, on flues of condensing boilers, pellet stoves, wood stoves and open fireplaces.

The code gives both sizes: IEVG130180 is Ø130 male to Ø180 female. The smallest is IEVG0608, from Ø60 to Ø80.

Increaser or reducer, which one do I need? On an increaser the male end is small and the female end large. On the IE series reducer it is the other way round. So check which end has to fit into which size.

Is the seal included? Yes, all increasers in this group come with a seal.

Do I need to secure the increaser? It slides into the other pipe. To secure the joint further, use a locking band.