Metal Bellow Seal – MB-92

MB-92 seals specially designed for high temperature application and suitable for high start-up toque since the bellows unit is independent of torque transmission. Grafoil is used as a secondary member having excellent temperature range upto 4000C. Shrunk fit seal face design minimize face distortion restricting leakage and wear rate to very low level under a wide range of condition.

Seal Characteristics
  • Single Seal
  • Balanced
  • Independent of directions of rotation
  • Metal Bellow
Application
  • High Temperature Application
  • Petrochemicals
  • Refineries
Performance Range
Shaft Diameter dl : 18…100mm
Pressure p : 20 bar (max)
Temperature t : -20…4000C
Velocity v : 20 m/sec
Materials
Seal Faces : Carbon, SiC,Tung. Carbide
Metal Parts : SS316, SS304, Hastelloy-C,Alloy 20, Carpenter-42
O-rings : Grafoil
  A – Seal Face
B – Face Housing
C – Bellows
D – Collar
E – Packing
F – Drive Collar
G – Grub Screw
H – Head Screw
I – Stationary Seat
J – Packing

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