Features
- API 682 Category 2 and 3, Type A, Arrangement 2 seal
- Dual seal in face-to-back arrangement
- Non-contact outer seal (containment seal)
- Balanced
- Cartridge unit
- Rotating multiple springs
Advantages
- Universally applicable both for retrofits or original equipment
- Efficient stock keeping due to standardized components
- Extended selection of materials
- Metal parts also in special materials available
- Safe operation due to metal torque transmission at the rotating carbon seal rings
Operating range
Shaft diameter:
d1 = 20 … 110 mm (0,79″ … 4,33″)
Pressure: p1 … 42 bar (609 PSI)
Temperature:
t = -40 °C … +176 °C (-40 °F … +350 °F)
Sliding velocity: vg = 23 m/s (76 ft/s)
Axial movement: ±1.0 mm
Materials
Seal rings: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating rings:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Secondary seals:
EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G) or equivalent, optional materials on request.