Flowserve ISC2 Single metal bellows seal - Manual (Page 3)

3
Seal parts that are reconditionable
• Gland assembly [11]
• Sleeve assembly [1]
• Sleeve collar [58]
4 Inspection and Reconditioning
There are certain critical areas of each part where special attention should be
paid to the condition. If any of the listed areas show signs of wear, corrosion
or other defects that cannot be removed without affecting the dimensional size
of the surfaces by more than 0.001 - 0.002 inch (0.025 - 0.05 mm), then the
respective part should be replaced. If grit blasting is performed, polish the O-ring
surfaces to achieve the required surface finish (see critical area listings for finish
requirements). If any parts require machining to correct damage, please contact
your Flowserve representative for dimensional requirements, or for any other
questions regarding repair.
4.1 Gland assembly [11] see Figures 2 and 3.
A Stationary face O-ring surfaces - Inspect
for wear, nicks, scratches or corrosion.
Required surface finish: 63 RMS
B Gasket surface - Remove the old gasket
and clean the gasket surface. Inspect for
nicks, scratches or corrosion.
C Pipe ports and lifting holes - Inspect for
damaged threads or corrosion. Re-tap as
necessary.
D Drive flats (sizes ≤ 2.750 inch, 70 mm) -
Inspect for wear or corrosion.
4.2 Sleeve assembly [1] see Figures 4 and 5.
A O-ring surfaces - Inspect for wear, nicks,
scratches or corrosion. Required surface
finish: 63 RMS.
B Drive flats or drive pin - Inspect for wear or
corrosion. Replace pin as necessary.
C Drive end roundness - No greater than
0.001 inch (0.025 mm) TIR (Total Indicated
Reading), under the bushing.
D Inspect ID of sleeve at weld point for
corrosion.
Figure 2
C
B
D
A
B
D A
Figure 3
C