4-piece aseptic fittings 

The 4-piece Union fittings consist of 2 central smooth pieces (one of which contains the seal) and a 2-part (male and female) locknut, which surrounds the central block. The gasket is thus doubly surrounded by the metal, which ensures a perfect seal.

The fittings are machined from 316L stainless steel and are compatible with ISO or SMS piping.