Multistage centrifugal blower model 077

Construction materials

  • Bearing body:  Cast Iron FGL 250
  • Head, sections:  Cast Iron FGL 250
  • Cross Bar:  13/16” (20 mm) diameter cold-drawn A60 steel
  • Sealing gasket compound:  RTV IS502 Silicone
  • Sealing (air):  2 graphite rings on each terminal
  • Sealing (gas):  4 carbon rings on each terminal with inert gas injection
  • Bearings:  6313 C3 ball bearing per AFBMA B10 standard
  • Shaft:  C35 Carbon Steel (available in stainless steel)
  • Turbines:  Cast Aluminum Si 10 Mg
  • Motor pedestal:  UPN plated carbon steel
  • Chassis installation:  Anti-vibration plate
  • Noise level:  OSHA compliant (certified testing available)

Technical data

  • Number of stages: From 1 to 9 (casting)
  • Inlet connection:  Flange 8″ (202 mm), PN 10 DN 200
  • Outlet connection:  Flange 8” (202 mm), PN 10 DN 200
  • Operating Speed:  3550 direct drive (60 Hz), 4400 with v-belt
  • Lubrication:  Constant level oil
  • Turbine diameter:  24″ (611 mm)
  • Turbine tip speed:  372 f/s (113 m/s)
  • Critical Speed:  4275 rpm (8-stage)
  • Transmission:  Direct or v-correct
  • Vibration Tolerance:  4.5 mils from peak to peak (4.5 mm/s)
  • Final Shaft:  2″ 3/8 (60 mm), Standard Final Drive

Dimensions

  • Blower 77.01 :  290 x 1372 x 1676 (mm) / 900 Kg
  • Blower 77.02 :  400 x 1524 x 1829 (mm) / 1040 Kg
  • Blower 77.03 :  510 x 1676 x 1981 (mm) / 1180 Kg
  • Blower 77.04 :  620 x 1880 x 2184 (mm) / 1330 Kg
  • Blower 77.05 :  730 x 2184 x 2489 (mm) / 1480 Kg
  • Blower 77.06 :  840 x 2286 x 2591 (mm) / 1610 Kg
  • Blower 77.07 :  950 x 2286 x 2591 (mm) / 1730 Kg
  • Blower 77.08 :  1060 x 2591 x 2896 (mm) / 1880 Kg
  • Blower 77.09 :  1170 x 2896 x 3200 (mm) / 2030 Kg