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BSP fittings

Solarstar
Solarstar Member Posts: 82
in THE MAIN WALL
Do all or most BSP fittings use "O" rings ,Starting to see this with some of my Solar stuff as well af radiant manifolds, Also any leak issues by using just the O ring???

Comments

  • Aidan (UK)
    Aidan (UK) Member Posts: 290
    BSP fittings

    BSP is just a thread size, so the sealing arrangement would be the same as with NPT threads. I've noticed O rings being used more frequently on a few fittings (radiator valve unions) but I think they've just become cheaper & more reliable as plastics have developed. I can't recall any O ring fittings leaking.
  • Seattle Nick
    Seattle Nick Member Posts: 64


    Paul, I think you are referring to British Standard Pipe (Parallel).

    "With BSP Parallel, the hydraulic seal is usually formed at the mouth of the internal thread by using a suitable gasket. This can be a copper or aluminium ring or a lipped seal such as the Dowty seal which is usually rubber bonded to steel. But there are similar designs made by other manufacturers of all metal construction. The illustration in Figure 4 shows a section through a port connection using one of these seals. A variation of this type of connection is where the BSPF thread has been replaced with an appropriate metric module thread but it is not very popular."
    British Standard Pipe Info
  • Solarstar
    Solarstar Member Posts: 82


    Thanks for the help.. Very helpful Paul
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