Only area (apart from process side), where water comes in contact with oil; is the Thermic Fluid pump gland cooling area, where water is used to cool the gland area. Scaling on this area decreases the heat transfer rate across gland area.
Pin holes and cracks in the same, might cause water ingress into the system. Both these cases are highly risky and increase fire and accident hazards.
These low boilers are removed from the system through deaeration tank. Sometimes they are undersigned or not efficient in removal of low boilers, hence low boilers start accumulating in the system.We have launched a air cooled replacement for water cooled pumps, which is oil to oil cooling, finally cooled by air.