Radium - Universal Billet Coolant Expansion Tank (1240mL)

Coolant expansion tanks are necessary for proper air bleeding in applications that utilize a rear mounted radiator or a low mounted radiator such as a V-Mount. However, expansion tanks are also valuable if integrated in a common radiator setup. To allow heat expansion, traditional coolant systems require air to be present in the top portion of the radiator during low temperatures. A coolant expansion tank permits the radiator to be 100% filled with coolant in all conditions.

This Radium Coolant Expansion Tank holds 1240mL. It is a multi-piece design constructed of CNC billet 6061 aluminum. 

A pressure cap is not included. The CNC billet receiver is compatible with Type-A "radiator" caps, as shown HERE. The tank features two internal chambers. These chambers are NOT isolated from each other. There are cross-over passages at the top and bottom. 

NOTE: This product is not a coolant overflow tank. Instead, it is designed to be a part of the pressurized coolant system.

PRESSURE CAPS

The optional Radium Engineering pressure caps (sold separately) allow the user to select a range of pressure. The purpose of a high pressure cap is to increase the boiling point in the cooling system providing improved cooling efficiency. Each cap is manufactured from stainless steel with a race proven high pressure valve. This is something to consider when tracking the vehicle in extreme conditions. For more information, go HERE.

Radium Pressure Cap - 1.1 Bar (110 kPA, 15.6 psi)
Radium Pressure Cap - 1.3 Bar (130 kPA, 18.9 psi)
Radium Pressure Cap - 1.5 Bar (150 kPA, 21.8 psi)