Flange seal Prädifa series HRI, FlexiSeal® | Product Series

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Flange seal Prädifa series HRI, FlexiSeal® Flange seal Prädifa series HRI, FlexiSeal®

Flange seal Prädifa series HRI, FlexiSeal®

Flange seal. Internal pressure. Static and intermittently dynamic. FlexiSeal. Spring-energized PTFE seal. Low assembly force.

Technical Specifications

  • Outside Diameter: 300 to 465 mm
  • Inside Diameter: 280.2 to 441.4 mm
  • Maximum Operating Temperature: 80 to 230 °C
  • Thermal Application Type: Low Temperature (< -35°C), Expanded Low and High Temperature (< -35 to 140°C)
  • Media: Hydraulic
  • Polymer Material Options: Polytetrafluoroethylene (PTFE, mPTFE, TFM, Polon®), Ultra-High Molecular Weight Polyethylene (UHMW-PE)
  • Maximum Operating Pressure: 550 bar
  • Minimum Operating Temperature: -200 to -190 °C
  • Maximum Surface Speed: 0.005 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Pressure Rating: High Pressure (< 500 bar)
Safety Warning

Full Product Description

The HRI product series features a FlexiSeal® design with a cantilever spring and is ideally suited for flange sealing in high-pressure applications. It internally seals the pressure gradient against the outside. The HRI series is characterized by extremely high temperature resistance and chemical resistance.

• Extended heel to resist extrusion effects.
• Wiper-type lips.
• Cantilever spring with high-load/high-compliance to resist permanent set and long-term flange separation.
• Rigid spring acts as a control band to resist low temperature shrinkage.
• Available in large cross sections, ideal for large-diameter seals.
• NACE-approved energizers available for oil field use.

Range of application:
Flange sealing in high-pressure applications, pressure gradients from inside to outside. Cryogenic applications.

Related Documents

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Products Inside Diameter (mm) Outside Diameter (mm) Element Height (mm) Groove Width Minimum Working Temperature (C) Maximum Working Temperature (C) Seal Material
HRI-M046500-05-006-4 441.4 465 6.1 11.800 -200 80 006

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