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891 Rotary Inside Single Seal
High-Performance Component Seal for Demanding Applications
Progressive Sealing offers the Chesterton 891 rotary internal single seal, a balanced, robust component designed for high-pressure and high-speed service. This seal works with various stationary ring options, making it adaptable across many pump applications. Its non-fretting design helps protect shaft sleeves and internal metal parts, extending equipment life.
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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
5 key seal design features
✔ Balanced Design
✔ Non-Fretting
✔ Monolithic Seal Faces
✔ Stationary Design
✔ Protected Springs
Technical Data ↓
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16 mm to 200 mm (0.75 inch to 8 inch)
Operating Conditions ↓
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711 mm (28") Hg Vacuum to 40 bar g (600 psig)
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-55 to 300 °C (-67 to 570 °F)
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20 m/s ( 4000 fpm )