MFL85N

MFL85N For a larger view, please mouseover the image.
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Item Part no.
DIN 24250
Description
1.1 472/481 Seal face with bellows unit
1.2 412.1 O-Ring
1.3 904 Set screw
2 475 Seat (G9)
3 412.2 O-Ring
  • For unstepped shafts
  • Single seal
  • Balanced
  • Independent of direction of rotation
  • Metal bellows rotating
  • For extreme temperature ranges
  • No dynamically loaded O-Ring
  • Self cleaning effect
  • Short installation length possible
  • Pumping screw for highly viscous media available (dependent on direction of rotation).
Shaft diameter:
d1 = 16 … 100 mm (0.63" … 4“)
Externally pressurized:
p1 = … 25 bar (363 PSI)
Internally pressurized:
p1 <120 °C (248 °F) 10 bar (145 PSI)
p1 <220 °C (428 °F) 5 bar (72 PSI)
Temperature: t = -40 °C … +220 °C
(-40 °F … 428) °F,
Stationary seat lock necessary.
Sliding velocity: vg = 20 m/s (66 ft/s)
Seal face: Carbon graphite antimony impregnated (A), Silicon carbide (Q12)
Seat: Silicon carbide (Q1)
Bellows:
Inconel® 718 hardened (M6), Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel (G), Duplex (G1), Hastelloy® C-4 (M)
  • Process industry
  • Oil and gas industry
  • Refining technology
  • Petrochemical industry
  • Chemical industry
  • Hot media
  • Cold media
  • Highly viscous media
  • Pumps
  • Special rotating equipment