Sulpher viscosity calculation

[Griekwa]

Hi all

I am new to this so bare with me.
We are pumping sulfur to a converter skid where we generate SO3. Our lines are steam jacketed to try and keep the sulfur temperature constant at around 140 degC. It sometimes happen that there is a problem with the steam jacketed line and thus we loose temperature that cause the sulfur to solidify and block the line. The viscosity of sulfur is very sensitive for temperature.

Can someone help with a formula to calculate viscosity of sulfur at different temperatures.

Keep well

 

[ione]

In the link below you can find sulfur viscosity vs temperature graph

http://www.sulphuric-acid.com/TechManual/Properties/properties_sulphur.htm