Pipeline networks are an integral element of most modern production facilities. One primary element of the system for ensuring the safe operation of such facilities is pipeline valves for various purposes: isolating, non-return, safety, regulating, separating, disconnecting, and others. In turn, to verify the performance of pipeline valves, comprehensive tests are necessary to confirm the main characteristics, such as tightness. This research develops a hydraulic installation for hydraulic in-plant testing of pipeline valves as part of the technological equipment. It includes the structure, simulation of the stress-strain state of core units, and the testing loop hydraulic calculation of the installation. Keywords — finite-element method, hydraulic testing, mathematical simulation, pipeline system, pipeline valves, strength analysis, stress-strain state, technological hydraulic installation