HPX-PT™ Pre-Torqued Holders

SANITRX HPX® Rupture Disc

The HPX-PT pre-torqued holder incorporates high-strength steel socket-head cap screws for accurate loading and sealing of the rupture disc.

  • Allows a precise torque load to be applied in the controlled environment of a workshop prior
    to installation, simplifying final installation
  • Maintains precise loading of the rupture disc, even where poor flange alignment and gasket cold flow may be an issue, improving performance
  • Pre-torqued holder screws are protected with coating to prevent wear, corrosion, sticking and galling of the screws, reducing maintenance costs

Common installations

  • Process equipment with glass or fluoropolymer-lined flanges that can’t provide enough compression to seal the rupture disc in the holder
  • Where piping arrangements restrict access, preventing correct torque loading of the flange fasteners
  • Processes requiring regular removal and inspection of the rupture disc and holder assembly
  • Applications requiring leak testing of the rupture disc assembly prior to installation in the piping system

Available options

  • Alternate height
  • Gauge taps in holder outlet
  • Flange studs and nuts, alloy steel or 316 SS
  • J-hook on holder inlet
  • Enhanced corrosion resistance from fluoropolymer coatings or TANTALINE treatment

Specifications

  • Nominal size range: 1″ – 12″ (25mm – 300mm)
  • Burst pressure range: N/A
  • Maximum recommended operating ratio: N/A
  • Seating configuration: Flat seat
  • Service: Liquid or gas
  • BDI alarm system compatible?: It is available to comply with ASME Section VIII Division 1, but needs to also be used with a ASME Section VIII Division 1 compliant HPX rupture disc.
  • ASME Code Symbol Stamp Available?: It is available to comply with ASME Section VIII Division 1, but needs to also be used with a ASME Section VIII Division 1 compliant HPX rupture disc.

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