Flowserve Dual Gas Barrier Seals - Manual (Page 4)

4
2.1.1 Optional: TARSEx Bushing
Installation
• Slide seal assembly
against the bearing frame.
• Clean lubrication off pump
shaft.
• Install the friction drive
TARSEx bushing with
O-ring, positioning them
against the retaining
plate with the bushing
grooves oriented toward
the seal. See Figure 3.
Install TARSEx Bushing
(optional)
Figure 3
2.2 Install the pump seal chamber, Figure 4. Postion the seal gland
gas barrier inlet, port A shown in Figure 5, in the 9:00 o’clock
position and the plugged gas barrier outlet, port B in the 6:00
o’clock position for normal installations. Alternate positioning of the
gland may be necessary with
Install pump seal chamber
Figure 4
gland
retaining plate bushing O-ring
some pumps, where the bear-
ing housing interferes with
piping. Bolt the seal cham-
ber in place on the bearing
housing.
Note: Either port can be used for
gas barrier inlet or outlet.
2.3 Assemble the pump, adjust
the bearings, set the impel-
ler, connect pump piping.
Allow no pipe strain on the
pump casing. Connect the
Position gland inlet
Figure
Normal Installation Alternate Installation
coupling so that the shaft is in its operating axial position.
A
B
A
B
Gas
Barrier
Inlet
Port
Gas Barrier
Outlet Port
Gas Barrier
Outlet Port
Gas
Barrier
Inlet
Port