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U-Cup Merkel® NRVA

Design Sketch
Installation Sketch

Description

  • Asymmetrical
  • V-spring as preload element
  • Shortened outer lip
  • Tight fit on inner diameter
  • Use with high tolerances
  • High chemical resistance
  • Low friction even at low speed
  • High wear resistance
  • Suitable for dry running and deficient ulbrication
  • Wide temperature range
  • No stick-slip effect
  • High extrusion reliability
  • Sealing of pistons
  • Use as swivel seal
  • Suitable for high pressures and vacuum due to active preloading of the sealing lip
  • Use with one-sided pressure load
  • Use with high tolerances
  • V-spring for gap bridging

Most commonly used in the following applications:

  • Valve construction
  • General chemistry
  • Mechanical engineering
  • Food industry
  • Pharmacy
  • Petrochemistry
  • Ball valves
  • Flanges/covers
  • Swivel joints and distributors
  • Hot water and steam valves
  • Valve trunnions
  • Switching shafts
  • Piston pumps
  • Bearings

PRD(EU) - 20250120.4