Chesterton 491 DIN Rotary Internal Single Seal

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Chesterton 491 DIN Rotary Internal Single Seal
General Purpose, Single Component Seal

  

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​This high-performance, single rotary seal is capable of addressing a wide variety of applications. 

The Chesterton ​491 can be run against many different stationary seal rings for maximum flexibility in many applications. 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.

Monolithic seal faces
Balanced
Non-clog isolated springs
Dynamic O-Ri​ng is positioned on a replaceable component surface
Fits EN12756 L1K dimension
Technical Data
Sizes16 mm to 110 mm (0.625" to 4.375")
Pressure711 mm (28") Hg Vacuum to 10 bar g (150 psig*)
Temperature-55° C to 300° C ( -67 ̊  F to 570 ̊  F)
Speed20 m/s (4000 fpm)

 

 

Article: What Determines Seal Leakage? (English)http://chestertondocs.chesterton.com/Rotating/What Determines Seal Leakage.pdfArticle: What Determines Seal Leakage? (English)pdf
Technical Material Reference (English)http://chestertondocs.chesterton.com/Rotating/EN23875_Technical_Material_Reference.pdfTechnical Material Reference (English)pdf
Catalog: Rotating Equipment Solutions - Mechanical Seals, Pump Packing, Gaskets, and Morehttp://chestertondocs.chesterton.com/Rotating/RotatingCAT.pdfCatalog: Rotating Equipment Solutions - Mechanical Seals, Pump Packing, Gaskets, and Morepdf
Environmental Control Plans (English)http://chestertondocs.chesterton.com/Rotating/EN23873_MS_Enviro_Control_Plans.pdfEnvironmental Control Plans (English)pdf
Installation Instructions: 491 DIN (English)http://chestertondocs.chesterton.com/Rotating/si491_EN.pdfInstallation Instructions: 491 DIN (English)pdf