Metal bellow mechanical seal

NMM-1

NMM-1

  • Solition for high temperature and high viscosity product
  • Welded metal bellow design
  • Absence of dynamic o-ring increases the elastomer temperature range
  • Balanced
  • undepended on direction of rotation
  • Fitting dimentions according to DIN 24960(EN12756)

Seal faces materials:

  • Resin impregnated caron(В)
  • Antimony impregnated carbon (A)
  • tungsten carbide (U3)
  • silicon carbide (Q1, Q2)

Secondary sealing materials:

  • Fluorcarbon rubber, FKM (V)
  • Nitrile-butadiene-rubber (P)
  • Ethylene propylene
  • rubber, EPDM (E)
  • Perfluorocarbon rubber, FFKM (for example Kalrez®, etc.), (K)
  • Operating limits:

    • p = 25 bar
    • t = -50 … 220°C 
    • v = 20 m/s

    Type: Metal bellow seal
    Replacement: John Crane 670, 680, Burgmann MFL85N, AES BSAI

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Product: NMM-1

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