2.
External Flush - A clean, cool compatible liquid is injected from an outside source directly into the
seal gland. The flushing liquid must be at a pressure of 5-15 psi (0.35-01 kg/cm2 ) greater than
the seal chamber pressure. Injection rate should be ½-2 GPM (2-8 LPM).
3.
Other methods may be used which make use of multiple gland connections and/or seal chamber
connections. Refer to the documentation supplied with the pump, mechanical seal reference
drawing, and piping diagrams.
Packed Stuffing Box Option:
Models 3196 CC and CV 3196 CC pumps are shipped without packing, lantern ring or split gland instal-
led. These are included with the box of fittings shipped with the pump and must be installed before start-
up.
Installation of Packing:
1.
Carefully clean stuffing box bore.
2.
Twist the packing just enough to get it around the shaft (Fig. 19, 20).
Figure 19:
Figure 20:
3.
Insert packing, staggering the joints in each ring by 90°.
4.
The stuffing box arrangement in order of installation is: 2 packing rings, lantern ring (two-piece),
then 3 packing rings.
CAUTION:
Follow instructions to ensure the lantern ring is located at the flushing connection (Fig. 21).
Otherwise, no flush will be obtained.
4.2 Checking rotation
3196CC Installation, Operation and Maintenance Instructions
27
