RS-680 Metal Bellow mechanical pump shaft seal

Profile

Single seal

Balanced

Independent of direction of rotation

Metal bellows

John Crane 680 seal replacement

Product Detail

Profile

Single seal

Balanced

Independent of direction of rotation

Metal bellows

John Crane 680 seal replacement

 

RS-680 series is widely used for high temperature and high viscosity medium. Its rotating O-ring has no compensational function so that the bellows can move without damp.

 

Operating limits

Specification: 16~200mm

Pressure: ≤2.5Mpa

(Double layer wave plate ≤5.0Mpa)

Temperature:-20~300

Linear speed: ≤15m/s

Axial movement: ±1.0mm

 

Combination of materials

Sealing face: Carbon, Silicon carbide, Tungsten carbide

Secondary sealing: NBR, FKM, EPDM, FFKM

Metal component: SS304, SS316, Hast.C, 4J42, Ti

Bellows: SS316, AM350, Hast.C, Alloy718


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