Reducing union is a type of union, widely used in tube fittings depending on considerations such as fitting port, tube size, material etc. Used for tube to tube piping, this type of fitting is manufactured in materials like aluminium, brass, plastic, stainless steel and copper. Reducing union are available in fractional or metric sizes and give instant leak proof connections. Stainless steel reducing union is the most used as they ensure positive pressure and smooth flow paths, without any turbulence or entrapment. Nickle or chrome plating of these tube fittings allows enhanced appearance and prevents corrosion.

Application of Reducing Union
Reducing unions are put to various uses in large number of industries depending on their specifications and internal and external diameter.