What’s the direction for Steam heating of vertical pump used in sulfur application? Bushing cooling needed?

1. Is it better to conduct the steam tracing from top to bottom or from bottom to top to reverse the heat tracing from bottom to top?

2. Do the guide bearings in the middle of the pump under sulphur and at the impeller of the pump body need to be cooled?

What is the cooling medium for cooling?

How to avoid leakage into liquid sulfur pool?

3. Is the guide bearing material of the pump under sulphur chosen to be filled with teflon or impregnated with metal graphite?

What is the structure of the pump under sulphur?

1. Steam condenses with heat and water flows out from the bottom.

What if the water comes out of the top and the water comes out of the bottom?

2. I have seen the pump bearing cooling with circulating water;

There may be other ways of cooling;

3. Sliding bearing, graphite material.