7
4.13 Compress the drive collar to be
even with the end of the sleeve
assembly. This will also compress
the gland. While holding the
collar in compression, tighten
the quarter dog set screws into
the holes in the sleeve until
snug. (
Figure 13
)
Be careful
not to distort the sleeve by
over tightening the quarter
dog set screws.
Note: if the drive collar cannot be
compressed to be even with
the end of the sleeve, the gland
drive pins may not be aligned.
If this is the case, do not
attempt to rotate the gland to
align the pins.
The gland should
be disassembled and re-aligned
prior to proceeding further.
4.14 Install the sleeve gasket O-ring
19
into the inside diameter groove of
the sleeve assembly. (
Figure 14
)
4.15 Apply an even coat of 3M
®2
Super 77 spray adhesive,
free of bubbles and nodules,
to the gland gasket
18
. Adhere
the gasket to the gland gasket
surface. (
Figure 14
)
5 Static Testing
Figure 13
Figure 14
Sleeve
Gasket
O-ring
19
Gland
Gasket
18
5.1 Flowserve manufacturing typically air tests the ISC at 25 psig. A pressure
drop of less than one pound at 25 psig is acceptable. To static test the seal,
bolt it to a single seal test barrel or to the equipment. Secure the cup point
set screws to the stub shaft or equipment shaft to prevent deformation
of the setting devices due to axial loads. The seal may be pressurized
through either of the tangential flush ports. If the seal does not pass the
static pressure test, disassemble the seal and inspect for O-ring damage, as
this is the most common cause of static test failure.
6 Installation
6.1 Refer to the ISC Installation Instructions, FIS120, for proper seal installation.
