Flat-Face Hydraulic Screw-to-Connect Couplings in the FG series from STAUFF. Successor to the successful FT series. Male tip and female body of the couplings can be connected and disconnected under trapped and residual pressure. Various designs, series and ranges for all common connection types and nominal sizes on the market. STAUFF zinc/nickel surface coating for reliable corrosion protection. Many years of experience, extensive range, high availability, fast delivery.