Hydraulic Inside BOP IBOP Product Description IBOP for top drive can be divided into Upper IBOP and Lower BOP; They are control valves connected to the top drive drilling device. The IBOP adopts high reliable metal seal. So it can bear high pressure upward and downward. The working pressure can be achieved 10000 psi or 15000 psi. We produce H2S resistance IBOP for Top Drive, which adopt high quality import sulfur-resisitance material. Technical parameters: Type O.D(mm) I.D.(mm) Length (mm) Connection API 187-3 187 76.2 523 6 5/8REG 196-3 195.8 76.2 523 6 5/8REG 197-3 197 76.2 512 6 5/8REG 216-3 216 3 600 6 5/8REG World famous brands of Top Drive including Varco, Canrig, NOV, BPM, JH, etc. Top Drive Parts including Gooseneck, saver sub, IBOP, gear, stuffing box, washpipe, etc. Lake Petro can supply China made interchangeable parts for above mentioned Top Drive Parts. Below are pictures of Gooseneck and Flange end for JH Top Drive DQ70, for Russia clients. If you need any related parts or tools, freely ask me.