Continental Industrie Model - 451 - Manual (Page 3)

Values, dimensions and reference in this brochure are approximate and intended as guide only, not for construction and are subject to change without notice
DETAILED ENGINEERING DESCRIPTION - CONTINENTAL INDUSTRIE
DEB451EN – 06/2012
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9.0 Casing assembly
9.1 Vertically split assembly
9.2 Heads and sections have machined male and female joints to maintain concentricity
9.3 Entire casing is retained together with ø 20 mm O.D.- 13/16" O.D tie rods.
9.4 Maximum allowable casing working pressure: 170 kPa (25 PSIG).
9.5 Joints are made gas tight with silicone sealant with following characteristics:
Viscosity pasty mastic glue
max. space [mm] 6
Setting time 10 mn - 24 h
Shearing's resistance [DAN/cm²] 33
Break's resistance [DAN/cm²] 8
Max. temperature of use [°C] -60 +260
Specific weight 1,06 at 25 °C
Hardness 35 SHA
Extension 460 %
10.0 Rotor assembly
10.1 Impellers, spacers are assembled on the shaft with a push to light press fit requiring
little or no heat.
10.2 Impellers, spacers are held together axially by a conventional locknut assembly.
10.3 All impellers are keyed to shaft using a staggered key arrangement.
10.4 The impeller hub is fitted with a shrunk to pre-stress the bore and minimize friction.
This also eliminates the relative thermal expansion and contraction since hubs and
shaft are manufactured with different materials.
10.5 The rotor assembly is dynamically balanced on a computerized balancing machine
11.0 Balancing piston
11.1 Cast iron EN-GJL-250 (A 48-35B)
11.2 Sized to reduce by approx. 75 % the thrust load to the outlet bearing.
12.0 Lubrication system
12.1 The bearing housings are oil lubricated (see detailed description in the installation,
use and maintenance manual).