Germany MERKEL pneumatic piston ring seal -NAP210

1. Features
     Section asymmetry, dynamic slip sealing surface with special pneumatic sealing edge of the U-shaped seal compaction.
     Section asymmetrical long and thick static sealing lip ensures seal tightly positioned at the bottom of the trench.
     This special pneumatic sealing edge seal ring with low friction and maintain an effective lubricant film a good sealing function.

2. Operating conditions
  Media: treated and dried, compressed air without lubricant (grease-coated after assembly).
  Working pressure: ≤1.2MPa (12bar)
  Temperature: NAP210 (NBR): - 25 ℃ ~ + 100 ℃
       NAP210 (FPM): - 5 ℃ ~ + 200 ℃
  Line Speed: ≤1m / s

3. Material
   NAP210 (NBR) 80 Shore A hardness of NBR rubber.
   Grade: Simrit 80NBR99079.
   NAP210 (FPM) fluorine rubber hardness of 75 Shore A's.
   Grade: Simrit 75FPM99104.

4. trenches and machine processing standards
  Cylinder: Rmax≤4μm, Rp / Rz <0.5
  tp (25% Rmax) = 50% ~ 75%
  Trench floor: R max≤10μm, Rp / Rz <0.5
  tp (25% Rmax) = 50% ~ 75%

5 Installation
  Careful installation is to ensure a good seal function prerequisites.
  Pneumatic U-rings can be assembled by hand withhold the appropriate grooves.