172-65207MA-08 (SR-3/SR-8) 8 Oct 2020
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Inspection and Maintenance
Take measures to prevent people from coming into direct contact with
product outlets. Failure to do so may result in burns or other injury from
the discharge of fluids.
CAUTION
Be sure to use only the recommended components when repairing the
product, and NEVER attempt to modify the product in any way. Failure to
observe these precautions may result in damage to the product or burns
or other injury due to malfunction or the discharge of fluids.
CAUTION
As the SR is an atmospheric type heat exchanger, there is no particular need to
perform the kind of maintenance inspections required for pressure vessels.
However, if the heat exchanging performance declines, verify that the cold water and
steam flow quantity are in compliance with the rated capacities. If they are not in
compliance, correct the flow quantities. If there are no irregularities with the flow
quantities, perform the following inspection:
Annual inspection and cleaning is recommended to prolong the product
’s service life.
Inspection at cold/hot water side
1. Perform a reverse-flow chemical cleaning by pouring cleaning solution in through
the hot water outlet valve on the SR, then discharging the solution through the
cold water inlet valve.
Inspection at steam side
1. Remove the plug from the inspection opening and check the condition inside the tank.
2. If the inspection reveals heavy grime, close the condensate outlet and the
condensate blowdown outlet and perform chemical cleaning by pouring cleaning
solution through the exhaust outlet of the SR.
