Rod seal Prädifa series BAI, FlexiSeal® | Product Series

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Rod seal Prädifa series BAI, FlexiSeal®

Rod seal Prädifa series BAI, FlexiSeal®

Where to Buy

Rod seal. Inside dynamic sealing on reciprocating rods. FlexiSeal. Spring-energized PTFE seal. Axially short design.

Technical Specifications

  • Thermal Application Type: Extremely High Temperature (> 205°C), Standard Moderate Temperature (-35 to 100°C)
  • Media: Hydraulic
  • Polymer Material Options: Polytetrafluoroethylene (PTFE, mPTFE, TFM, Polon®), Ultra-High Molecular Weight Polyethylene (UHMW-PE)
  • Maximum Operating Pressure: 200 bar
  • Minimum Operating Temperature: -200 to -190 °C
  • Maximum Operating Temperature: 80 to 230 °C
  • Maximum Surface Speed: 15 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Pressure Rating: Medium Pressure (< 250 bar)
Safety Warning

Full Product Description

The BAI 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 the medium pressure range. Due to its short axial length, the seal is particularly well suited for installation in compact grooves.

• 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:
For sealing reciprocating rods

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

Related Documents

Product Demos & Tutorials
Mixing the right ingredients: Material Development at Parker-Prädifa
Literature and Reference Materials
PTFE Seals Design Guide--PTD3354
FlexiSeal®--BAI inside dynamic u2013 reciprocating--PTD3354
Installation Guidelines for FlexiSeals®--PTD3354
Storage and Cleaning of Elastomer Seals--PTD3032
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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
BAI-M000400-02-063-2 4 8.52 3.6 3.6 -190 230 063
BAI-M001400-02-001-1 14 18.52 3.6 3.6 -190 230 001
BAI-M002000-02-001-1 20 24.52 3.6 3.6 -190 230 001
BAI-M002000-32-006-1 20 24 3.2 3.2 -200 80 006
BAI-M005000-03-001-2 50 56.15 4.8 4.8 -190 230 001
BAI-M006000-03-006-2 60 66.15 4.8 4.8 -200 80 006
BAI-M007000-03-006-2 70 76.15 4.8 4.8 -200 80 006
BAI-M015600-03-002-1 156 162.15 4.8 4.8 -190 230 002
BAI-M000600-02-001-1 6 10.52 3.6 3.6 -190 230 001
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