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Flange Seal Praedifa Series NRE, FlexiSeal®
Brand: PraedifaThe NRE product series features a FlexiSeal® design with a cantilever spring and is ideally suited for flange sealing in medium-pressure applications. It seals the pressure gradient from outside to inside. The NRE series is characterized by extremely high temperature resistance and chemical resistance.
Features• Wiper-type lips.
• Cantilever spring with high-load/high-compliance to resist permanent set and long-term flange separation.
• Available in large cross sections, ideal for large-diameter seals.
• NACE-approved energizers available for oil field use
Specifications
Brand
Application Pressure Requirement
- External Pressure
Cushioning Mechanism
- No
Inside Diameter (mm)
- 220 to 450
Length Unit of Measure
- mm
Maximum Surface Speed (m/sec)
- 0.005
Maximum Working Pressure (bar)
- 350
Maximum Working Temperature (°C)
- 230° C
Media
- Hydraulic
Minimum Working Temperature (°C)
- -190° C
Outside Diameter (mm)
- 240 to 470
Polymer Family
- PTFE (Polytetrafluoroethylene)
Pressure Range (bar)
- High Pressure (< 500 bar)
Thermal Application (°C)
- Expanded Low & High Temperature (< -35° to 140° C)