Access device for a fluid tank

An access device for a fluid tank, the access device comprising:

• an access device structure comprising:
• a connection plate located at one end of the access device structure;
• a drill located on another end of the access device structure;
• a thread-forming unit located adjacent to the drill, the thread-forming unit comprising external thread-forming unit threads configured to form one or more wall threads in the wall;
• a valve;
• a hollow body comprising a first hollow body section, a second hollow body section and a hollow body shoulder located between the first hollow body section and the second hollow body section, the first hollow body section being located adjacent to the thread-forming unit, the second hollow body section being located adjacent to the connection plate, the first hollow body section comprising hollow body section threads configured to form a threaded connection with the one or more wall threads in the wall of the fluid tank to connect the hollow body to the wall, the second hollow body comprising an outer surface free of threads, the valve being provided in an interior of the hollow body.

An access device for a fluid tank, the access device comprising:

• a connection plate;
• a drill comprising a drill surface and a longitudinal axis;
• a thread-forming unit comprising a first thread-forming unit surface facing in a direction of the drill and a second thread-forming unit surface, the first thread-forming unit surface being located axially opposite the second thread-forming unit surface with respect to the longitudinal axis, the drill surface facing in a direction of the thread-forming unit, the drill surface being in direct contact with the first thread-forming unit surface;
• a hollow body comprising a hollow body surface located axially opposite the thread-forming unit with respect to the longitudinal axis, the second thread-forming unit surface being located axially opposite the hollow body with respect to the longitudinal axis, the second thread-forming unit surface being in direct contact with the hollow body surface, the hollow body comprising a hollow body outer surface, the hollow body outer surface comprising a hollow body external thread configured to provide a thread connection together with a thread formed in a wall of the fluid tank by the thread-forming unit, the hollow body being provided with a valve.