886HT High-Temperature Metal Bellows Single Seal

Designed for High-Temperature Services

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​In applications where the process temperature exceeds elastomer capabilities, metal bellows mechanical seals with graphite secondary seals are a good sealing option. The 886HT Bellows Single Seal is designed for high-temperature services typically found in chemical and petrochemical processes. Graphite secondary seals replace O-Rings to achieve the higher temperature requirements. ​

Advanced bellows design distributes pressure uniformly across the span of the bellows plate to reduce stress and minimize weld fatigue. Component design replaces most OEM seals.

 

Product Features

  • Graphite secondary seals for high-temperature performance
  • Advanced bellows design for maximum cycle life
  • Rotary bellows for enhanced performance in slurry and particulate services
  • Hydraulically-balanced seal design
  • Blister-resistant carbon
  • Proven heat-treated AM 350 bellows construction
  • Fits a wide range of pumps and other rotating equipment

Technical Data

Size Range 25 mm to 65 mm (1 inch to 2.625 inch)

Materials

 

Operating Conditions

Pressure 711 mm (28") Hg Vacuum to 14 BARg (200 PSIg)
Notes

Sealed pressure capabilities are dependent on the fluid sealed, temperature, speed and face combination. Consult Chesterton Mechanical Seal Engineering to confirm suitability for your application and to receive a product recommendation.

 

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