Patent ID: 8261593
Filing Date: 2012-09-11
Classification: G01M

Abstract:
1. A method of testing a heat exchanger for leaks without disassembling the heat exchanger comprising the following steps: a) removing all pipes and hoses from the heat exchanger; b) capping a first port from each of first and second sides of the heat exchanger; c) securing a modified plug with an air tight seal to a second port of the heat exchanger's second side, the modified plug having a hole therethrough and further having a tube extending from the modified plug at the hole; d) placing an end of the tube in a container having water within with the end of the tube below a water level, therein providing fluid communication between the second side of the heat exchanger and the water such that air under pressure in the second side of the heat exchanger is discharged into the water; e) supplying pressurized air to a second port of the first side of the heat exchanger; and f) observing bubbles or lack thereof in the water as an indication of said pressurized air leaking from the first side to the second side of the heat exchanger.