Radiator Monkey


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How to Measure

There are two basic designs for radiators both automotive and industrial. They are named for the direction of the coolant flow and can be distinguished by the position of the two tanks.

Downflow Radiator

The first is called a DOWNFLOW (Fig. 1). In the downflow design, the coolant flows downward from the top tank to the bottom tank.

The second type is called a CROSSFLOW (Fig. 2). In the crossflow design, the coolant flows horizontally from tank to tank.

Before you measure a radiator, make sure it is in the upright position you will be measuring the core only. The core is the central part of the radiator (between the tanks and the side pieces) and consists of parallel rows of tubes and fins. MEASURE ONLY THE CORE to determine the size of the radiator.

Crossflow Radiator

CORE HEIGHT: On all cores this is the distance between the top of the bottom header and the bottom of the top header. In this catalog core height is always the first dimension in the illustration section.

CORE WIDTH: On all cores this is the distance inside the two side channels. In this catalog core width is always the second dimension in the illustration section.

CORE DEPTH: Carefully insert a piece of wire through the core (Fig. 3) until the end is flush with the other side Make the other end of the sire (at the point where it is flush with the core), withdraw the wire and measure to get the depth.