491 DINS-DINL Rotary Internal Single Seal (EMEA)

Manufactured Specifically for European/Middle East/Africa

This high-performance, single rotary seal is capable of addressing a wide variety of applications. This version of the 491 is manufactured in Germany specifically for Europe/Middle East/Africa markets.

Chesterton ​491 can be run against many different stationary seal rings for maximum flexibility in many ap​plications. The non-fretting design will not destroy the shaft sleeve or any metal parts. The 491 has a balanced O-Ring design with anti-clog features, springs out of the fluid, dynamic O-Ring moves on a clean surface.​​"

 

Product Features

  • Monolithic seal faces
  • Balanced
  • Non-clog isolated springs
  • Dynamic O-Ring is positioned on a replaceable component surface
  • Fits EN12756 L1K dimension

Technical Data

Size Range 16 mm to 110 mm

Materials

 

Operating Conditions

Pressure Limit Vacuum 711 mm Hg Vacuum ( 28 in Hg vacuum )
Pressure Limit Rotating 150 PSIg ( 10 BARg )
Speed Max 20 m/s ( 4000 fpm )
Temperature Max 570 °F ( 300 °C )
Temperature Min -67 °F ( -55 °C )
 

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