STAUFF hydraulic push-to-connect couplings with integrated poppet valve in different version and series from STAUFF. All common connection types and nominal sizes. Made of carbon steel with STAUFF zinc/nickel surface coating for several series for reliable corrosion protection. longstanding experience, extensive range, high level of availability, fast delivery. Established in the market for many years as an original Voswinkel product. This coupling is particularly suitable for stationary hydraulics.