Cleveland KEL-25 Manuel De L'opérateur page 9

PRESSURE RELIEF VALVE PERIODIC TESTING PROCEDURE
WARNING: Improper refilling of kettle jacket will result in irreversible damage to unit.
Most insurance agencies require periodic testing of pressure relief valves used on pressure
vessels. This procedure will allow you to safely and quickly test your kettle's pressure relief valve.
We recommend this test be performed twice a year.
NOTE: The following instruction is intended for use by qualified service personnel.
WARNING: Kettle surface will be hot and steam will be released during testing. Take necessary
precautions including the use of gloves and eye protection to prevent personal injury.
DANGER: Pressure relief valve will exhaust high temperature steam. Contact with skin could
result in serious burns. Keep face, hands and body clear of discharge.
DANGER: Working on machines with power could result in severe electrical shock.
1. With the kettle empty, turn unit ON and set temperature control to 10 (Max.). Allow the kettle
to heat until the unit cycles off.
2. Switch unit OFF and disconnect main power at fused disconnect switch.
3. Stand to the side of the pressure relief valve discharge tube and pull valve open for a
maximum of one second. Repeat test three to four times. Each time the mechanism should
move freely and be accompanied by a rapid escape of steam.
If valve appears to be sticking replace pressure relief valve.
If foreign material is discharged then drain kettle and replace pressure relief valve.