Chesterton 886HT High-Temperature Metal Bellows Single Seal

Chesterton 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.

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
​Sizes25 mm to 65 mm (1.00") to (2.625")
Pressure711 mm  (28") Hg Vacuum to 14 bar g (200psig*)
Temperature400° C to 750° F
Speed20 m/s  (4000 fpm)

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.



Catalog: Mechanical Seals (English) Mechanical Seals (English)pdf
Catalog: Mechanical Seal (Espanol) Mechanical Seal (Espanol)pdf
Chesterton: Catalogue of Products (Italiano) Catalogue of Products (Italiano)pdf
Chesterton Catalog of Products (Deutsch) Catalog of Products (Deutsch)pdf