CIPRIANI S020+, User And Maintenance Manual, Page: 48 / 148

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ENGLISH
5.11 - Increasing the transfer area
It is possible to add an even number of extra plates to an existing
heat exchanger, provided you:
• Check the maximum plate capacity of the heat exchanger.
• If the length is insufficient, provide new carrying bars and
threaded rods.
• Replace the nameplate with the new ones.
• Leaks often occur when plates with new gaskets and plates
with old gaskets are used together (due to difference in tough-
ness). We therefore strongly recommend replacing all worn
gaskets with new ones.
5.12 - Spare plates
Plates may be replaced individually or altogether. In this last case,
however, it is recommended to replace all the gaskets (see the
previous section).
• If only a few plates are replaced, indicate the sequence of the
plates to be replaced shown on the plate arrangement drawing.
5.13 - Troubleshooting
FLUID LEAKS BETWEEN PLATE PACK AND FRAME
PROBLEM
Leak detected at the bottom of the pack.
POSSIBLE SOLUTIONS
°
Make sure that all the bolts are correctly tightened.
°
Make sure that there is no mechanical stress on any of the
connections.
° Reposition or replace the gasket on the initial or end plate.
°
Check the internal surface of the fixed head for defects.
°
Make sure that there are no foreign bodies between the initial
plate and the fixed head.
° Test the initial/end plate for signs of damage (cracks, holes).
FLUID LEAKS BETWEEN CONNECTIONS AND FRAME
PROBLEM
Fluid leaks where a connection passes through the fixed head.
POSSIBLE SOLUTIONS
°
If welded connections are used, check the condition of the
welds.
° If cracks are found, contact your CIPRIANI consultant before
attempting any repairs.
°
If other connections are used, contact your CIPRIANI consult-
ant.
FLUID LEAKS FROM THE PLATE PACK
PROBLEM
Leak detected from plate pack.
POSSIBLE SOLUTIONS
°
Measure the tightening dimension and check it against the
nameplate. Tighten if need be.
°
Mark the area around the leak with a felt-tip pen then open the
heat exchanger and inspect the area.
°
Check the sequence and alignment of the plates.
°
Check the condition of the gaskets (correct position, overall
condition, elasticity). Reposition or replace the gaskets as need-
ed.