Features

• API 682 Category 2 and 3, Type C, Arrangement 3 seal

• Dual seal in back-to-back arrangement

• Balanced

• Cartridge unit

• Rotating metal bellows

• Shrink fitted seal rings and solid mating rings

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 rings: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating rings:
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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