The pipe tester valve (PTV) is a modified single-ball safety valve (SBSV) with a multiflow evaluator (MFE) ball installed in place of the PCT Pressure Controlled Tester ball. This tool is used in production-type tests for running a cushion, or for pressure testing the pipe string above the valve while running in the hole.
The PTV is normally closed, but it opens permanently when annulus pressure is applied to burst the rupture disk.
When the PTV is used with the dual-ball safety valve or SBSV, one flow test and one shut-in test can be performed with a minimum number of tools.
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