IBOP for Top Drive used for top drive. It includes Upper IBOP for Top Drive and Lower IBOP for Top Drive. They are used for top drive drilling system with joined one by one. The seals for upward and downward pressures provide dependable high-pressure service. It has a pressure rating of 10,000psi or 15,000psi respectively at the factory. The bore of the valve body and all internal parts are special treated to prevent damage from corrosion and have a long life service.