
8
Inlet Outlet
Clockwise (CW) Port c Port b
Counterclockwise (CCW) Port b Port c
Shaft rotation from exposed end of gland Figure 7
3 Piping
3.1 Taps b and c in the gland are barrier uid inlet and outlet
ports. Use Figure 7 to determine which ports to use as inlet and
outlet.
C
C
W
Rotatio
n
CW
Rotation
b
c
3.2 For dual seal pressurized seal operation, supply a clean
compatible barrier uid to the inlet port at a pressure at least 25
psi (170 kPa) above the stufng box pressure. See Figure 8.
Flowserve can supply information on barrier uid ow
requirements based on seal size, product temperature, barrier
uid characteristics, and shaft speed. For assistance, contact
your nearest Flowserve Sales and Service Representative or
Authorized Distributor.
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