Rod seal Prädifa series BHI, FlexiSeal® | #BHI-M012000-05-007-2


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BHI-M012000-05-007-2

Rod seal Prädifa series BHI, FlexiSeal® | #BHI-M012000-05-007-2

Rod seal, inside dynamic sealing on reciprocating rods. FlexiSeal, spring-energized PTFE seal, high-pressure.


Technical Specifications

  • Inside Diameter (mm): 120
  • Minimum Working Temperature (C): -190
  • Groove Width: 12.1
  • Maximum Working Temperature (C): 230
  • Seal Material: 007
  • Element Height (mm): 12.1
  • Outside Diameter (mm): 132.12
  • Media: Multiple
  • Polymer Material Options: Polytetrafluoroethylene (PTFE, mPTFE, TFM, Polon®)
  • Maximum Operating Pressure: 550 bar
  • Minimum Operating Temperature: -260 to -190 °C
  • Maximum Operating Temperature: 80 to 300 °C
  • Maximum Surface Speed: 15 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Thermal Application Type: Extremely High Temperature (> 205°C)
  • Pressure Rating: High Pressure (< 500 bar)
Safety Warning

Item Information

The BHI product series is a single-acting rod seal featuring a FlexiSeal® design with a helicoil spring. It is characterized by extremely high temperature and chemical resistance and ideally suited for use in higher pressures.

• Extended heel reduces effects of extrusion.
• Heavy dynamic lip (inside) ensures longest life.
• Short, wiper-type dynamic lip reduces frictional forces due to hydrostatic pressure.
• Helical spring for high load and small deflection range.
• Squared, long static lip stabilizes the seal.
• Widest range of cross-sections and diameters available, including sizes for upgrading standard O-ring grooves.
• Many high-resilience energizer options available, including choice of light, medium and heavy loads and NACE for oil field use.
• Low-cost elastomeric energizers available, all with excellent fatigue resistance.

Range of application:
High-pressure, reciprocating rod sealing.

The BHI rod seal is available in the following compounds:
001 - Industrial applications
005 - High temperatures
006 - Heavy-duty

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