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Features
API 682 Category 2 and 3, Type C, Arrangement 1 seal
Single seal
Balanced
Cartridge unit
Rotating metal bellows
Shrink fitted seal ring and solid mating ring
Advantages
Compact design
Suited for applications with extreme high and low temperatures
Absence of dynamic O-Ring eleminates/reduces seal face hang-up
Bellows design minimizes variation in face load due to shaft expansion or face wear
Resistant to abrasive particles in the medium, no shaft or sleeve fretting
Also available in double ply design
Operating range
Shaft diameter: d1 = 20 ... 110 mm (0.79" ... 4.33")
Pressure single ply bellows: p = vacuum ... 25 bar (... 363 PSI)*
Pressure double ply bellows: p = vacuum ... 35 bar (... 508 PSI)
Temperature: t = -75 °C ... +400 °C (-103 °F ... +752 °F)
Sliding velocity: vg ... 23 m/s (... 75 ft/s)
* p >20 bar (290 PSI) on request.
Materials
Seal ring: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating ring:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Bellows: Inconel® 718 (M6)
Secondary seals: Graphite (G)
Metal parts: CrNiMo steel 316 (G),
Carpenter® 42 (T4)
Recommended applications
Refining technology
Oil and gas industry
Petrochemical industry
Chemical industry
Power plant technology
LPG plants
API 610 / ISO 13709 pumps
Process pumps
Service
Provide special design
According to the requirements and conditions for the custom processing
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