Hollow Plugs

The hollow plugs are key component to in pipe fittings assembly, as the plug body provides the seal in the access fitting. A hollow plug is a valve used to restrict or isolate the flow of a liquid or gas through a pipe. There are both right-handed and left-handed threads in such plugs. This arrangement of right- and left-handed threads ensures that the functional parts of the pipe cannot become unscrewed during the extraction process.

Materials used:
Materials used in the making of hollow plugs are as follows:Hollow Plug

  • Brass
  • Aluminum
  • Copper
  • Plastic
  • Bronze
  • Stainless steel
  • Cast iron etc.

Assembly of Hollow PlugHollow plug assembly:
Hollow Plug consists of:

  • Pipe Plug
  • Hollow Plug Body
  • Primary Packing
  • Hollow Plug Packing Retaining Nut
  • Probe Packing
  • Hollow Plug Seal Nut

How to measure hollow plugs?
To get the accurate measurements of hollow plugs, the measurements of pipe size, O-ring uniform size and dimensions are to be known. As seen in the figure, the pipe size is denoted by P while the dimensions are denoted by B, C, L ,A/F.
Measurement of Hollow Plugs


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