685

685

Operations Condidtions

  • Temperature
    -75℃ to +200℃
    Pressure
    ≤2.1MPa
    Speed
    ≤23m/s

Materials

  • Stationary Ring
    TC, Silicon Carbide
    Rotary Ring
    Carbon, Silicon Carbide, TC
    Secondary Seal
    Nitrile (NBR), Ethylene Propylene (EPDM), Fluorocarbon Rubber (Viton)
    Bellows
    Steel
    Spring and Metal Parts
    Steel

Applications

  • Oil, light hydrocarbon, aromatic hydrocarbon, organic solvents, week acids, ammonia etc.

Replacements

Replacement for 685

  • Burgmann MFL85N

Seal Sizing Guide

Diagram

685 Diagram

Dimensions

685 Metric

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