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3.
Installing the Thermocouple
3.1 Vertical Installation
(For non-vertical installations do steps A - E, proceed to page 14.)
A. Carefully set HRW Refractory Thermowell down onto the hole in the refractory. The collar of the
HRW should rest flat against the refractory surface and the tip should extend about 1 inch (25 mm)
beyond the refractory into the reactor vessel. The fit should be somewhat loose.
B. Ensure proper clearance prior to thermocouple insertion by measuring from the bottom of the
refractory thermowell up to the flange face. The distance should be approximately 1 inch (25mm)
longer than the insertion length of the primary thermowell (Insertion Length U).
10
Model HRW
Refractory
Thermowell
Primary
Thermowell
Insertion
Length "U"
U + 1 in.
Installing the Thermocouple
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