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Full Opening Safety Valve or TIW valves are ball valves designed for high-pressure conditions. These ball valves can hold pressure from both directions.
TIW valves are called "Full Opening" because when the ball valve is opened; the flow path has a smooth inside diameter. The term "Full Opening" does not mean that the valve's ID is the same as the drill pipe's ID. We offer valves with the same ID as the pipe.
TIW valves should always be located on the rig floor in the open position. This is critical because if the well flows through the drill pipe, the valve can be stabbed quickly into the drill string.
TIW valves are often indispensable in high-pressure drilling operations. They are particularly useful when drilling deep wells, in offshore environments, and in unconventional resource plays such as shale gas and tight oil reservoirs. Moreover, with the growing demand for safe and efficient drilling, TIW valves have become an integral component in managed pressure drilling (MPD) systems.
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