What is the difference between an eccentric (Level Invert Taper) and concentric reducer? When would I use them?
An eccentric reducer or LIT. reduces inline with an edge (touching) of the larger diameter. This is useful in non-pressure (drainage) and some slurry applications, where it is important to avoid any potential “trap” for material. A concentric reducer reduces in the centre of the larger diameter, meaning less friction loss in pressure systems and better flow for vertical drainage applications.
