Device for checking set pressure of safety valve, has lifting chamber, pressure chamber and connecting cable that are filled with liquid and/or gaseous pressure transmission medium

摘要

The device (1) has a lifting chamber (5) that is connected with a lifting piston (3). A gripping unit (7) is used for engaging valve housing. Apressure device (14) is provided with a pressure cylinder (15) in which a plunger (16) is axially slidably connected and an actuating unit (21). A connection cable (18) is connected to a pressure chamber (17) and lifting cylinder (2) in the region of lifting chamber. The lifting chamber, pressure chamber and connecting cable are filled with a liquid and/or gaseous pressure transmission medium (36).