IN-LINE LEAK TESTING: ADVANCED INDUSTRIAL SOLUTION FOR APPLIANCES

A look at Marposs' Dryer Heat Pump Leak Test application and how it ensures high product quality without compromising the requisite high productivity to meet market demands at production sites.

In the context of the White Goods/Home Appliances industry, Marposs' Dryer Heat Pump Leak Test application is a high-tech end-ofline test that ensures very high product quality without sacrificing the necessary high productivity to meet market demands at production sites. This solution utilises a hard vacuum helium leak detection system across the entire finished assembly, offering the most reliable method for detecting global leaks in circuits.

The testing method employs 100 per cent helium as the tracer gas, with mass spectrometer measurement in a vacuum chamber, making it the most effective among various leak testing systems for detecting even the smallest leaks. Marposs' in-line leak test machines can detect leaks in heat pump assemblies down to a threshold range of 10-5 mbarl/s. For comparison, traditional nitrogen leak tests in water tanks typically yield results in the range of 10-2 mbarl/s (one bubble with a radius of 2 mm in 1 second), factoring in human guesswork and potential undetected leaks.