Leak Tester

Leak Tester is designed for the examination of airproof property of packages, containers, bags, pipes. Leak tester is widely used in food, beverage, pharmaceutical, daily chemical, electrical and electronic industries, etc.
Leak Tester complies with ASTM D3078 “Test Method for Determination of Leaks in Flexible Packaging by Bubble Emission”

Principle

A test sample is placed into a vacuum chamber with water and the air above water is evacuated by a venturi tube. A pressure difference is created inside and outside the sample and leakage can be observed and identified when the sample is inflated and a stream of bubbles appeared.

Methylene blue test
1)The blister is in chamber with solution (Methylene Blue)
2)Vent the chamber and hold the vacuum for a while
3)Stop the vacuum and hold blister in normal pressure.
The dye will enter the blister if there is leak.

Overview

The system is composed of the mainframe and the vacuum chamber. A test
sample is placed into a vacuum chamber with water and the air above water
level is evacuated by a venturi vacuum ejector. A great pressure difference is
created inside and outside the sample and any slight leakage can be
observed and identified when the sample is inflated.

Feature

● Leak test process all automatic
● Digital vacuum degree and test time setting
● Automatic vacuum maintenance and air back-flushing
● Extra-thick PMMA
● Different chamber sizes available
● No vacuum pump required
● Easy operation and maintenance

Technical Specification

Vacuum: 0~-90KPa/0~-13PSI
Vacuum chamber size: Φ270 mm x 210 mm (H)
( Customization available)
Air source: Compressed air
Air Pressure: 0.7MPa/101.5PSI