Service Temperature
3196
LF3196
3796
STX
MTX/LTX
XLTX/X17
STXMTX/LTX
STX
MTX/LTX
XLTX
STXMTX/L
TX
inches mm inches mm
inches mm
inches mm
In-
ches
mm
in-
ches
mm
-20 to 150°F (-29 to
66°C)
0.005 0.13 0.008 0.20
0.015
0.38
0.015 0.38 0.06 1.52 0.01
5
0.38
Up to 175°F (79°C)
0.005 0.13 0.008 0.20
0.015
0.38
0.015 0.38 0.06 1.52 0.01
5
0.38
Uo to 200°F /93°Cl
0.005 0.13 0.008 0.20
0.015
0.38
0.015 0.38 0.06 1.52 0.01
5
0.38
Uo to 250°F (121°C) 0.006 0.16 0.009 0.23
0.016
0.41
0.016 0.41 0.06 1.52 0.01
6
0.41
8.
Install the mechanical seal rotary unit per the manufacturer's instructions using the scribed line
and the seal reference dimension.
9.
Reassemble the seal chamber per the instructions in
6 Disassembly & reassembly on page 38
.
10. Slide the gland on the seal chamber studs and secure with the gland nuts. Be sure to tighten the
nuts evenly such that the gland is seated on the seal chamber pilot and is perpendicular to the
shaft.
11. Complete the reassembly of the pump per the instructions in
.
*1
For Model CV3196, clearance is set from the back of the impeller to the stuffing box cover/ seal
chamber/ backplate.
Conventional Outside Component Mechanical Seal:
1.
Assemble the seal chamber per the instructions in
6 Disassembly & reassembly on page 38
2.
Apply bluing to the shaft/sleeve at the face of the seal chamber.
3.
Continue the complete reassembly of the pump, less the mechanical seal.
4.
Set the impeller clearance per the instructions in
.
5.
Scribe a line on the blued shaft/sleeve at the face of the seal chamber.
6.
Remove the casing, impeller, and seal chamber per the instructions in
7.
Install the mechanical seal rotary unit per the manufacturer's instructions using the scribed line
and the seal reference dimension. Be sure to secure the rotary unit in place using the set screws
in the locking ring.
8.
Install the gland (with the stationary seat and
gland gaskets installed) on the seal chamber.
9.
Reassemble the seal chamber per the instructions in
6 Disassembly & reassembly on page 38
.
10. Complete the reassembly of the pump per the instructions in
.
Connection of Sealing Liquid:
For satisfactory operation, there must be a liquid film between seal faces to lubricate them. Refer to the
seal manufacturer's drawing for the location of the taps. Some methods which may be used to flush/cool
the seal are:
1.
Product Flushing- In this arrangement, the pumpage is piped from the casing (and cooled in an
external heat exchanger, when required) then injected into seal gland.
4.2 Checking rotation
26
3196CC Installation, Operation and Maintenance Instructions