SPX FLOW S280 M-14, Manual, Page: 80 / 93

Paraflow Plate Heat Exchanger
Instruction Manual
Section 5.0 Issue 5
Page 24 of 36 June 13, 2008
4. Starting with the top pair of tie bars, continue
tightening equally about 1/4” at time until the
platage dimension measures about 5% above the
final dimension.
5.
Install the remaining tie bars (if applicable) above
the top ports and below the bottom ports of the
frame. Starting with the top pair and working
down, tighten each pair 1/8” at a time. After each
tightening cycle of 1/8”, return to the top set of
bars and repeat the procedure.
NOTE:
On large heat exchangers using 2”, 42 mm or
48 mm diameter tie bars, it may only be possible
to achieve 1/16” movement during the final stages
of tightening.
6.
Tighten the exchanger to the maximum platage
dimension specified on the plate arrangement
drawing. The dimension must be the same at all
tie bars. See
Figure 24
NOTE:
Due to o-ring type gasket seal, the final
closed dimension is determined by dimension ,
not tie bar torque.
Manufacturing tolerances of the plate may result in
the actual minimum platage dimension varying.
Refer to your plate arrangement drawing for actual
minimum and maximum dimensions.
7.
Pressure test the heat exchanger for leaks by
using
potable water at the desired pressure but
do not exceed the pressure specified on the
drawing. The test may be done on each side
separately or on both sides at once. Make sure all
air is vented from the heat exchanger before
performing the pressure test.
8.
If leaks occur, the heat exchanger may be further
tightened and retested. It is suggested that this be
done in steps of approximately 0.001” per plate
until the leak stops or the minimum dimension
specified on your general arrangement drawing is
reached.
9.
If the leaks continue, mark them carefully and
open the exchanger in accordance with Paragraph
5.7. Inspect the area of the leaks closely for
damaged gaskets, plates, sealing surfaces or
debris. Replace all suspect plates or gaskets,
clean the sealing surface with a lint free cloth, and
repeat steps 1 through 7.
5.7
Opening Tie Bar Frames
Tie bar frames may be opened safely by following
steps 1 through 6 in Paragraph 5.6 in reverse order.
The tie bars must be loosened in the same sequence
and amount as described in each step.
WARNING:
Refer to your plate arrangement drawing
for the proper tightening plate dimension .
WARNING:
Never open a Paraflow until the unit has
been cooled below 100
°
F (38
º
C).
Never open a Paraflow which is under
pressure from any source.
Never open a Paraflow with piping
connected to the follower or connector
grids.
Figure 24
Platage Dimension
Kemper County MM218132 Approved