11-80
140-3 SERIES
STRUCTURE AND FUNCTION, MAINTENANCE STANDARD THERMOSTAT
Unit: mm
No. Check item Criteria Remedy
1
Lift of thermostat to fully
open position
Min 9mm
(soak the valve in oil bath at 90ºC for 4 to 5 minutes to check)
Replace
Opening/closing of
thermostat
Check that the valve closes fully when the water temperature
has gone down to 76.5°C from 90°C when the valve was fully
open.
(Soak the valve in a water bath for 4 to 5 minutes to check)
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