Electronic checking appts. for domestic gas meter connections - allows for tolerances of position of screw connections to gas pipes and connectors to wall mounting

摘要

The correct spacing of the screw connections (4',4'') and the plane-parallelism of the sealing surfaces of their annular flanges are verified visually by means of lighting units (10). Three simple electric feelers (5-7) are spaced around each bore (2,3) through the checking device (1) which also carries two spirit-levels (11,12). Two cones (17,18) are adjustable on a thread (21) to check the orientation of the connectors (19) w.r.t. the pipes (4), and a rotatable angle (22) checks the distance (L) of the device from the wall. A pressure measuring device (25) may be integrated in the appts. to allow setting of a test pressure. ADVANTAGE - Allows checking of a number of functions using single appts.