Features

• Oil-lubricated

• Double seal

• Balanced

• Bi-directional

• Stationary bellows (process side)

• Multiple springs (bearing side)

• Shrink-fit seat

• Double-pressure balanced

Advantages

• Suitable for high sliding velocities

• Seal does not open if oil pressure drops

• Rugged seat with bandage ensures reliable operation

• Compact design with few sealing components

Operating range

Shaft diameter: d = … 220 mm (8.66")
Pressure: (p2-p1) = … 5 bar (73 PSI)
Sliding velocity: vg = 90 m/s (295 ft/s)

Materials

Bellows: AM350, Inconel® 718, Hastelloy®-C
Seal face: Special SiC, high-density carbon graphite
Seat: Silicon carbide
Secondary seals: FKM (bearing side)
Metal parts: 1.4301, Carpenter® 42, Inconel® 718, Hastelloy®-C

Recommended applications

• Oil and gas industry

• Refining technology

• Petrochemical industry

Service
provide specialised design
provide processing service according to constomer's need

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