Radium Engineering Coolant Tank - Universal 1240ml

The coolant tank has the following ports

• 6AN ORB (9/16"-18) top port. This is the inlet for incoming hot water and is a natural bleed for the system.
• 10AN ORB (7/8"-14) bottom port (opposite the inlet port) This is the drain back outlet. It would typically plumb to the water pump inlet fitting on the suction side.
• 10AN ORB (7/8"-14) bottom port (under the inlet port). This is not commonly used. If applicable, connect it to the highest point of the engine. This will allow any air bubbles trapped in the radiator or engine to travel up to the coolant tank.
• Barbed cap fitting. This is the overflow/purge port