Water valve off
Vol. 22 #1, June 1995
When the zone temperature of the ex truder is reading way over the set point, check whether the cooling valve is closed or open.
It is possible that the cooling control valve was turned off by the operator and was not prop erly communicated to the next shift or the needle valve was plugged due to contaminants.
See also
Cooling water
Cooling water flow
Water cooling
Water piping
Zone cooling check up