Vessel Heating System
HeetSheet tank heating units are comprised of two sheets
of 20-gage, type 304 stainless steel, conforming to ASTM
A240. The stainless steel sheets are continuously seamwelded
together along an outer continuous perimeter with
interrupted seam welds arranged inside the perimeter. The
welded unit is hydraulically inflated creating a waffle style
pattern of multiple flow paths avoiding internal blockage
possible with single-flow designs.
For temperatures up to 190°C, a factory applied nonhardening
heat transfer compound is applied to the surface
of the HeetSheet unit that contacts the tank wall to eliminate
air gaps and provide high thermal contact.
For temperatures above 190°C, Thermon’s BondTrace™
425 heat transfer compound may be applied to the
HeetSheet units in the field just prior to the units being
attached to the tank wall.
HeetSheet units are available in multiple sizes and are rolled to
conform to the radius of the tank. Stainless steel tubing inlet
and outlet nozzles are provided for steam or other heating or
cooling media. A simple tubing union compression type fitting
is used to attach the inlet and outlet tubes to ThermoTube®
pre-insulated leads (supply tubing) and tails (return tubing).
Operating Temperature Range: -196°C to 260°C