How does the sealing tester work?Expert decryption!
In industrial production, scientific research experiments and daily life, the quality of sealing often directly affects the quality and safety of the product.As a tool specially designed to detect the sealing performance of objects, the sealing tester is increasingly used in various fields.However, many people are still confused about the working principle of the sealing tester.Today, we will have a "big decryption" of knowledge to give you a comprehensive understanding of how the Heruis brand sealing tester works!
Through this article, you will learn about the specific working steps of the sealing tester, the advantages and disadvantages of various detection methods, precautions in practical application, etc.Whether you are a scientific researcher, an engineer or an ordinary user, I believe this article will help you greatly improve your posture in sealing testing. It is definitely not enough, so don’t hit me (just kidding, read with peace of mind).
1. What is a sealing tester?
Simply put, a sealing tester is a device used to test the sealing performance of an object's shell or package.It can help us determine whether an object will leak under certain conditions, thereby ensuring its quality and safety.Common application scenarios include food packaging, medical devices, electronic products, automotive parts and other industries.Hirays sealing tester is one of the leaders in the industry, famous for its accuracy, reliability and easy operation.
2. Overview of basic working principles
The working principle of the seal tester is mainly based on two core concepts: pressure and differential pressure.The detector will apply a certain pressure (positive or negative pressure) in a closed space or package.Then, by detecting pressure changes or differential pressure, it is determined whether the object is leaking.Simply put, it is to see if any gas or liquid leaks out after applying pressure.
3. Common detection methods
(1) Bubble method
This is the simplest and most intuitive way to check tightness, but it is very effective.The test object is immersed in water, and the sealing detector applies pressure to cause gas to enter the test object. If there is a leak, the gas will emerge in the form of bubbles.
(2) Differential pressure method
The differential pressure method determines whether there is a leak by measuring the difference in air pressure between the inside and outside of the test object.This method has high accuracy and is suitable for demanding applications, such as the inspection of medical devices.

4. Segmentation of application scenarios
(1) Food packaging
Ensure that the packaging is completely sealed, not only to keep the food fresh, but also to prevent the intrusion of bacteria or other harmful substances.The sealing tester can quickly and accurately detect whether the package is completely sealed to ensure food safety.
(2) Auto parts
Vehicle parts such as fuel tanks, air bags, etc. must be completely sealed, otherwise it may cause serious safety hazards.These problems can be effectively prevented by testing with a sealing tester.
5. How to choose a suitable sealing tester
According to the application field, detection object and accuracy requirements, it is particularly important to choose a suitable sealing tester.Factors to be considered include detection methods (bubble method, differential pressure method, etc.), accuracy requirements, ease of operation, maintenance costs, etc.
6. Precautions when using the Hirays sealing tester
Strictly following the operation manual is a basic requirement.Calibrate equipment regularly to ensure the accuracy of its test results.During use, please pay attention to ambient temperature, humidity and other factors that may affect the test results.
in conclusion
Through today’s “Big Decryption”, I believe you already have a comprehensive understanding of the sealing tester.From basic concepts, working principles, to various details in practical applications, we hope this article can help you gain more professional knowledge and skills in sealing testing.After all, by mastering these tips, you can be "confident" in specific applications and no longer worry about sealing issues.Thanks to the Hiraysi brand for bringing us such advanced and reliable testing equipment!

-
2026.04.11Good News | Hirays Honored as "Most Investment-Worthy Enterprise" at 2026 AI Glasses China Tour
-
2026.04.11Why are more and more companies opting for RGA technology for power bank electrolyte leakage detection?
-
2026.03.30Commemorating the revolutionary martyrs and inheriting the red spirit | Record of hirays’s theme activity of walking to commemorate the martyrs’ cemetery
-
2026.03.20Starting from June, the sale of non-compliant power banks will be banned: many companies ignore this detection issue
-
2026.03.16After charging 70% in 5 minutes, how can the safety of the power battery be maintained?
-
2026.03.14Overcoming difficulties and showing responsibility, efficient delivery wins praise - a tribute to the four pioneer employees on the production front line
-
2026.03.03Comparison of mass spectrometry technology applications: How do Heris helium mass spectrometers and RGA series enable precision manufacturing?
-
2026.02.26Construction has started | hirays starts a new journey of struggle in 2026
-
2026.02.06Let’s work together to embark on a new journey | The 3rd hirays Fun Games was successfully held
