Test coupling with ball valve (SMK) from the STAUFF Test 10 series (plug-in system) with 24° taper / O-ring (DKO) according to ISO 8434-1 and ISO 2353. 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).