Systems and methods for gauging and controlling fluids and gases from pipes and orifices

An apparatus for controlling fluids or gases from pipes or orifices, comprising:

• a plug member configured to expand and contract, wherein the plug member in the expanded configuration engages the interior of a pipe or orifice;
• a shaft assembly configured to facilitate the expansion and contraction of the plug member, wherein the shaft assembly includes a conduit member defining a hollow interior and having first and second ends, such that the first end extends through the plug member so as to allow flow of fluid or gas from the first end to the second end even if the plug member is in the expanded configuration;
• an expansion assembly disposed adjacent the second end of the conduit member and configured to facilitate the expansion and contraction of the plug member;
• a removable cap member disposed on the second end of the shaft assembly, the cap member including an aperture to allow passage of fluid or gas from or to the hollow interior of the shaft assembly;
• and
• an end assembly disposed at or about the second end of the conduit member and attached over the cap member to a portion of the expansion assembly, wherein the end assembly is configured to allow either capping of the second end to inhibit flow or attaching of a gauge for measuring at least one condition of the fluid or gas in the interior of the pipe or orifice.