Head seal Prädifa series NLA, FlexiSeal® | South Africa

Head seal Prädifa series NLA, FlexiSeal® | Product Series

Filter by

    No filters selected

Inside Diameter (mm)

Outside Diameter (mm)

Element Height (mm)

Groove Width

Minimum Working Temperature (C)

Maximum Working Temperature (C)

Seal Material

Get your Parker account Today!

Create one account to manage everything you do with Parker, from your shopping preferences to your application access.

Head seal Prädifa series NLA, FlexiSeal®

Symmetric head seals design. FlexiSeal. Spring-energized PTFE seal.

Technical Specifications

  • 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 Surface Speed: 5 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Thermal Application Type: Expanded Low and High Temperature (< -35 to 140°C)
  • Pressure Rating: Medium Pressure (< 250 bar)
Safety Warning

Full Product Description

The NLA product series is a FlexiSeal® design with a cantilever spring. It is ideally suited for static applications requiring greater flexibility of the seal cross-section (spring travel) due to higher coaxiality fluctuations between the rod and groove or due to excessive expansion and contraction (“breathing”). It is characterized by extremely high temperature and chemical resistance. NLA may also be used for dynamic applications (internal and external).

• Symmetric lip design.
• Cantilever spring for low load / high compliance behaviour.
• Many high-resilience energizer options available, including choice of light, medium and heavy loads and NACE for oil field use.
• Available with silicone filling for food and drug applications.
• Allows the integration of a stand-off ring to protect the sealing lips in case of reverse pressure.

Related Documents

×
Showing 1 to 36 of 36 entries

687466
687424