Flowserve ISC Series - Manual (Page 10)

CW
Rotation
F
D
F
Q
CCW
Rotation
10
3 Single Seal Piping and OperationalRecommendation
3.1 Install an adequate seal flush system. The ISC requires a clean
cool environment for maximum seal life. With a clean cool product,
use a bypass flush from the pump discharge (piping plan 11*) or a
bypass flush to the pump suction (piping plan 13). With clean hot
products use a bypass flush through a cooler (piping plan 21). With
abrasive products or products that are incompatible with the seal,
use a flush from a clean external source (piping plan 32).
a
b
Shaft rotation from exposed end of gland Figure 7
*Note: All piping plan designations used in these instructions are from API 682.
for the corresponding ASME B73 piping plan designation, please add a
"73" in front of the referenced piping plan.
For Piping Plans 11, 21 and 32:
Shaft Rotation Inlet Plugged
(from exposed end of gland) Port
Clockwise (CW) Port b Port a
Counterclockwise (CCW) Port a Port b
For Piping Plan 13:
Shaft Rotation Outlet Plugged
(from exposed end of gland) Port
Clockwise (CW) Port a Port b
Counterclockwise (CCW) Port b Port a