Installing The Low-Pressure Stage - ABB Power2 800-M Original Assembly Instructions

Assembly Instructions / Power2 800-M
4

Installing the low-pressure stage

4 Installing the low-pressure stage
Fixing elements and installation force
The fixing screws for fastening the low-pressure stage are not included in the ABB Turbo Sys-
tems scope of delivery and must be designed by the enginebuilder in accordance with the
following details.
Figure 4: Fixing elements
Subject
Fixing elements
Washers under the screw head
or nut
Table 7: Fixing elements
The required installation pre-tension force for the fixing elements of the low-pressure stage are
defined in table (see Table 8). An appropriate tightening method must be chosen for as-
sembly.
Power2 Subject
850 LP Thread size
Quantity
Low-pressure stage foot clamping length a
Minimum screw-in depth b
Installation pre-tensioning force F
Tightening torque M
(in accordance with VDI 2230, M20, 10.9, μ
Table 8: Fixing element requirements
For the case of the torque-controlled tightening method, an appropriate tightening torque is
defined in table (see Table 8) in accordance with VDI2230.
© Copyright 2016 ABB. All rights reserved.
Requirements
Plug bolt or screw with washer
Use hardened washers,
thickness ≥ 15% of the nominal thread diameter
M
A
HZTL455311P0010
=0.12)
G
Revision -
Page 11 / 21
Requirements
M20
8
70 mm
30 mm
190 kN
600 Nm
March 2016