Concentric Weld Reducers | Sanitary Stainless Steel Fittings- concentric reducer ,18 行 · Concentric Reducers. Weld concentric reducers, as their name implies, reduce in diameter …Concentric Reducers | Houston, TXPipe Flanges & Fittings provides ASME and Non code industrial pipe flanges for the Petrochemical, Process, Waterworks industries in Stainless, Alloy and Carbon Steel for all industrial flanges.