891 Rotary Inside Single Seal

High-Performance, Single Component Seal
​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Chesterton's 891 is a balanced, high-performance component single seal. The 891 can be run against many different stationary seal rings for maximum flexibility in many applications. It is a non-fretting design that will not damage the shaft sleeve or any metal parts within the seal.​​

 

Product Features

  • Monolithic seal faces
  • Balanced
  • High-pressure capable
  • Non-clog, isolated springs
  • Dynamic O-Ring is positioned on a replaceable component surface
  • Minimized wearing components
  • Easy to repair with kits

Technical Data

Size Range 16 mm to 200 mm (0.75 inch to 8 inch )

Materials

 

Operating Conditions

Pressure Limit Vacuum 711 mm Hg Vacuum ( 28 in Hg vacuum )
Pressure Limit Rotating 600 PSIg ( 40 BARg )
Speed Max 20 m/s ( 4000 fpm )
Temperature Max 570 °F ( 300 °C )
Temperature Min -67 °F ( -55 °C )
 

Let's talk

For inquires about products, sales, or to request a quote, please contact our Sales Office.

Resources

  Name Download File type
 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (English) 1034 KB
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 Industry=|Language=Svenska|LanguageId=sv|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (Svenska) 1092 KB
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 Industry=|Language=Português|LanguageId=pt|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (Portugues) 1118 KB
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 Industry=|Language=Norsk|LanguageId=no|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (Norsk) 1109 KB
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 Industry=|Language=Nederlands|LanguageId=nl|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (Nederlands) 1091 KB
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 Industry=|Language=Nihongo|LanguageId=ja|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (Nihongo) 1104 KB
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 Industry=|Language=Italiano|LanguageId=it|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (Italian) 1423 KB
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 Industry=|Language=Français|LanguageId=fr|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (French) 1105 KB
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 Industry=|Language=Finnish|LanguageId=fi|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (Suomi) 1107 KB
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 Industry=|Language=Español|LanguageId=es|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (Espanol) 1106 KB
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 Industry=|Language=English|LanguageId=en|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Small Sizes (English) 1062 KB
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 Industry=|Language=Deutsch|LanguageId=de|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 Small Sizes (Deutsch) 1110 KB
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 Industry=|Language=Svenska|LanguageId=sv|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (Swedish) 565 KB
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 Industry=|Language=Português|LanguageId=pt|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (Portuguese) 576 KB
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 Industry=|Language=Norsk|LanguageId=no|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 Large Sizes (Norsk) 563 KB
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 Industry=|Language=Nederlands|LanguageId=nl|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (Netherlands) 564 KB
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 Industry=|Language=Nihongo|LanguageId=ja|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (Nihongo) 601 KB
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 Industry=|Language=Italiano|LanguageId=it|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (Italian) 562 KB
.pdf
 Industry=|Language=Français|LanguageId=fr|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (French) 564 KB
.pdf
 Industry=|Language=Finnish|LanguageId=fi|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (Suomi) 560 KB
.pdf
 Industry=|Language=Español|LanguageId=es|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (Espanol) 565 KB
.pdf
 Industry=|Language=Deutsch|LanguageId=de|ProductLine=Rotating|MaterialCategory=|MaterialCode=
Installation Instructions: 891/880 - Large Sizes (Deutsch) 569 KB
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