Flowserve Machinery Components - Manual (Page 11)

General Installation and Maintenance Instructions for Machinery Components
11
6.4 Installation of Seals with Hooked Sleeves
(overhung pumps)
See figure 9.
6.4.1 Check assembly drawing, bill of material and seal components prior to installation.
Ensure seal faces and joints are free of scratches, contamination and other damage.
Prior to installation, wipe lapped surfaces clean with a lint free cloth and quick drying
solvent. Lubrication of seal faces is not recommended unless specified on the seal
assembly drawing.
6.4.2 Assemble seal chamber and shaft (including thrust bearings, if applicable) and verify the
distance from the seal chamber face to the end of the shaft as shown on the assembly
drawing.
If this distance is not in accordance with dimension on assembly drawing the setting of
the mechanical seal will be incorrect and this can lead to malfunction of the mechanical
seal and consequent leakage of sealed product into the environment.
6.4.3 When applicable, pre-assemble the rotating and stationary components or
sub-components of the seal in accordance with the assembly drawing.
6.4.4 Assemble the seal components sequentially onto the equipment. Locate the gland(s)
against the face of the seal chamber. If applicable, install drive keys as indicated on the
seal and/or pump assembly drawing.
6.4.5 Orient the connections on the seal gland(s) as indicated by the seal assembly drawing
and connecting piping.
6.4.6 Evenly torque gland bolts/nuts to prevent cocking of the gland or uneven gland pressure
against the seal chamber.
6.4.7 After the impeller nut is properly torqued, check that the sleeve is completely seated
6.4.8 Complete the remaining equipment assembly including thrust bearings, if applicable.
6.4.9 Assemble interconnecting piping as per API-plan and piping instructions as given in
para graph 7. See also (if applicable) auxiliary system installation and maintenance
manual.
6.4.10 Inspect equipment and driver alignment in accordance with coupling and / or equipment
manufacturer's instructions.
!
Figure 9