Pressure System

This system works on the principal of a closed and deaerated system using thermally generated pressure. The expansion and contraction of the coolant in the pressurized closed system keeps it free of trapped air. It provides:

• A pressurized surge tank volume for expansion and contraction.
• A non-pressurized overflow volume to capture excess coolant expansion and allow for it's return to the pressurized system.
• A pressurized cap on the pressure bottle rather than the radiator. This facilitates deaeration of the system.
• Reserve coolant is included in the pressurized volume to account for minor leaks and evaporation or boiling losses.
• Provides a warning light for low coolant level.