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Detecting leaks by the bubble method & shows their location on the pack

A simple, visual method for seeing if and where a leak is occurring on a test pack. Ideal for testing packs in which the headspace does not contain a trace gas, such as CO2. Complies with ASTM D3078.

There are three test chamber sizes, to suit pack size.
MFY270 – 270mm (dia) x 210mm (h)
MFY360 – 360mm (dia) x 590mm (h)
MFY460 – 460mm (dia) x 580mm (h)

Process  The test pack is immersed inside the water filled test chamber. The lid is closed and a vacuum created inside the chamber, to a user-preset level.

The test vacuum is controlled by a pressure sensor and cuts off automatically when the preset vacuum is reached. The vacuum creates a differential pressure between the inside of the pack and surrounding water. This drives gas out of any leak present in the pack and bubbles can be seen emerging.

For more information, please call our sales team on 01223 492083 or e-mail

Test Standards GB/T 15171; ASTM D3078
Vacuum range 0 – 90 kPa
Gas supply pressure ≤ 0.7 MPa (7 kgf/cm2)
Power AC 220 V, 50 Hz
Airproof Package Leak Detector – Vacuum Water Test Chamber