Heat Tracing / Heat Panels
Since Sodium Hydroxide 50% solutions freeze at 58 degrees F., it
is necessary to keep the storage temperature in the 65 to 85
degree F. range. If the liquid dips below 65 degrees F.,
the viscosity increases to the point that it is difficult or
impossible to pump.
Adding heating panels, which are known as Heat Tracing, to the
exterior of the tank is the most common way to keep the Sodium
Hydroxide at its 'maintenance temperature'. The Heat
Tracing is controlled by a digital control box which is included
in the heat tracing package. The control box is normally
mounted on the exterior sidewall of the tank.
We calculate the size and power of the Heat Tracing with
information you supply regarding the desired maintenance
temperature of the liquid and the zip code where the tank will
be installed. The Heat Tracing is calculated to deal with
the lowest recorded temperature for the intended tank location.
Heat tracing is installed on the tank at our plant.
Polyurethane tank insulation is usually installed as part of the
temperature maintenance package. We recommend a 2" thick
layer of closed cell Polyurethane foam insulation covered by a
white mastic coating. This is also installed at our plant.
The effect of the insulation is factored into the calculations
for the Heat Tracing.