SFL650 Metal Bellow Seals, Shape : Round

• Balanced
• For shafts without a step Independent of direction of rotation Metal bellows rotating
• Single Seal

Technical Features

• For extreme high temperature ranges No dynamically loaded O-Ring Pumping screw for highly viscous media available
• Self cleaning effect
• Short installation length possible

Typical Industrial Applications

• Chemical industry Highly viscous media Hot media
• Power plant technology Refining technology

Materials

• 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),
• Carpenter® 42 (T4), Hastelloy® C-4 (M)

Performance Capabilities

• Sizes -  d1 = Upto 150 mm (Upto 6.000’’)
• 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 (73 PSI)
• p1 <400 °C (752 °F) 3 bar (44 PSI)
• Stationary seat lock necessary Temperature -  t = -40 °C .. +400 °C (-148 °F .. +752 °F)
• Speed = 20 m/s (66 ft/s)