Parametric Research & Control offers its most advanced Valve Leakage testing Machine designed for any type of automotive components. The leak test is performed using a test pressure of 25 bar and a maximum pressure drop of 4 bar is permissible within 55 seconds. OK  and NG results are displayed on an operator HMI. A tamp printer is included to mark the tested valve block if all four test have passed. In the event that a test fails, the part is locked into the fixture and the operator is required to take action. The system is based on differential pressure principle.