Multistage centrifugal blower model 077
Material of construction
- Bearing housings : Cast iron FGL 250
- Head, Sections : Cast iron FGL 250
- Tie rods : 13/16” (20 mm) diameter cold drawn steel A60
- Joint sealing compound : RTV IS502 Silicone
- Seals (air) : Graphit rings each end
- Seals (gas) : Four carbon rings each end with inert gas injection
- Bearings : Ball bearings 6310 C3 per AFBMA B10 STANDARD
- Shaft : Carbon steel C35 (stainless steel available)
- Impellers : Cast aluminium Al Si 10 Mg
- Baffle rings : Stainless steel
- Motor pedestal : UPN roll carbon steel.
- Base frame installation : Antivibrations pads
- Noise level : In compliance with OSHA standards when machine is fully, piped (certified tests available).
Technical data
- Number of stage :1 thru 8 (cast) - 1 thru 11 (fabricated)
- Inlet connection : 8" (202 mm) flange, PN 10 DN 200
- Outlet connection : 8” (1202 mm) flange, PN 10 DN 200
- Operating speed : 3550 rpm in direct drive (60 Hz), 4400 with gear box or V-belt
- Lubrication : Oil type with constant level
- Impeller diameter : 24" (611 mm)
- Impeller tip speed : 372 f/s (113 m/s)
- First critical speed: 4274 rpm (8-stage)
- Drive : Direct drive or gear box or V-belts
- Vibration tolerance: 1.25 mils peak-to-peak (4,5 mm/s)
- Shaft end : 2" 3/8 (60 mm), inlet end drive standard
Blower size
- 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
