Threaded Flange

The threaded flange (THDF) is similar to a slip-on flange, but has internal threads. It is normally used for low pressure and not used where temperature or stress is very high. This flange has a raised face.
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This is the size differences between a 150 to 2500, 4″ threaded flange (THDF).
  • ASME B16.5 are flanges for sizes 1/2″ to 24″.
  • ANSI/ASME B16.36 are orifice flanges for sizes 1/2″ to 24″.
   

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