Sentinel® J-Series Fire Hydrant

Sentinel® J-Series Fire Hydrant

The Sentinel J-Series fire hydrant was manufactured by the U.S. Pipe Company between 1976 and 1981. It was available with a main valve opening 5-1/4” and has the following features:

  • 250 psi working pressure
  • Combination operating nut and weather shield
  • Bronze hold down and revolving nut
  • Tamper-resistant bonnet locking screw
  • Cast iron frangible rod and standpipe couplings
  • O-ring sealed bronze seat ring and bonnet
  • Standpipe lower and elbow assembled with Tyton Joint gasket
  • Steel keys lock the barrel and elbow connection

Identifying markings include: “Flat top” bonnet; valve opening cast on bonnet; and smooth-tapered standpipe upper, that is larger at bottom.

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