You are here: Home>Special Groups>Tester Valve Tester Valve View more specifications Tester valve for you Show: 8 16 32 item per page View gallery View list View gallery View list goto BOP Safety Valve for Drill Stem Testing Operation BOP Safety Valve- 8" The BOP safety valve is the Super safety valve with 15000 PSI working pressure, applied for drill stem testing operation in well testing service. View the Video 3 7/8" Select tester valve APR DST Tools Tester valve-02 The tester valve used in drill stem testing operation include three types: Select tester valve, OMNI valve, N valve, which is the Key part of the DST View the Video 5" High pressure select tester valve DST tools DST-Select tester valve-01 The select tester valve is a full opening, annulus pressure operated tool, which is main valve, used for drill stem testing operations in cased holes. Show: 8 16 32 item per page View gallery View list View gallery View list