Test couplings with ball valve (SMK) and accessories from the STAUFF Test 10 series (plug-in system), available with male threaded stud, with straight 24° tube fitting or with 24° taper / O-ring (DKO). Available in steel with high-quality zinc/nickel coating, or optionally in V2A and V4A stainless steel. Maximum operating pressure of 400 bar (6,090 PSI).