Description
Features
– Gas-lubricated
– Uni-directional or bi-directional
– Ready-to-fit cartridge unit Single, double, tandem and tandem with intermediate labyrinth available
– Separation seals as labyrinths, carbon rings or Coba Seal are optionally available
Advantages
– Wear-free and contact-free operation
– Self-cleaning 3D gas grooves
– High gas film stiffness
– Secure cupped retainer for seat Available in various materials for optimized chemical resistance
– Proven, reliable and economical solution
Operating range
Shaft diameter:
ds1 = 29 … 410 mm (1.14″ … 16.14″)
Pressure:
p = 0 … 160 bar (2,320 PSI)
Design temperature:
t = -46 °C … +230 °C
(-51 °F … +446 °F)
Sliding velocity:
vg = up to 227 m/s (744 ft/s)
Standards and approvals
– NACE
– API617
Recommended applications
– Oil and gas industry
– Refining technology
– Petrochemical industry
– Hydrocarbon gas
– Ammonia
– Nitrogen
– Air
– Centrifugal compressors
– Turbo expanders
– Blowers
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