Flowserve ISC2PP - Manual (Page 11)

5 Static Testing
5.1 Flowserve manufacturing typically 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
or clamp the seal to a pump seal chamber or other device which will hold the
inner gland up against the gland. WARNING: Failure to do this will result in
the inner gland unseating from the gland under pressure, possibly resulting
in damage to the inner gland O-ring and also causing a personal safety risk.
Secure the cup point set screws to the stub shaft or equipment shaft to prevent
deformation of the centering tabs due to axial loads. Apply pressure at either
of the tangential barrier fluid ports, while plugging the opposite port. 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.
4.21 Install the shaft O-ring 11
into the inside diameter
groove of the sleeve
assembly. (
Figure 23 )
4.22 Adhere the gland gasket G
to the inner gland gasket
surface with a spray adhe-
sive such as 3M Super 77
®2 .
( Figure 23 )
Figure 23
O-ring
11
Gland Gasket
G
11 2 Trademark of Minnesota Mining and Manufacturing Company.