HPX-PT™ Pre-Torqued Holder

Product Benefits

AVAILABLE OPTIONS
Alternate heights Gauge taps in holder outlet

Flange studs & nuts, alloy steel or 316 SS J-Hook on holder inlet

Corrosion resistance enhancement by adding a fluoropolymer coating or TANTALINE® treatment

Technical Data

  • Allows a precise torque load to be applied in the controlled environment of a workshop before installation
  • Maintains precise loading of the rupture disc where poor flange alignment and gasket cold flow may be an issue
  • Pre-torqued holder screws are protected with a coating to prevent wear, sticking and galling of the screws, and provide corrosion resistance
  • Compatible with the HPX® rupture disc products
  • Standard materials available: Carbon steel, Alloy 400, 316 Stainless steel, Alloy C276

NOTE: Pre-torqued holder designs may vary depending on bolting class and size

Application

  • Process equipment having a glass or fluoropolymer lined flanges that cannot provide the compression required to seal the rupture disc in the holder.
  • Installations where the piping arrangement restricts access preventing correct torque loading of the flange fasteners.
  • Challenging processes requiring regular removal of the rupture disc and holder assembly for inspection.
  • Applications requiring leak testing of the rupture disc assembly before installation in the piping system.

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