Germany MERKEL pneumatic piston ring seal -NAP310

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. Materials
    NAP310: high performance polyurethane hardness of about 80 Shore A's.
    Grade: Simritan D 80AU 941.

3. Operating conditions
   Media: treated and dried, compressed air without lubricant (grease-coated after assembly).
   Working pressure: ≤1.2MPa (12bar)
   Temperature: NAP310 (80AU 94): - 35 ℃ ~ + 80 ℃
   Line Speed: ≤1m / s

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