Helium Recovery Rate ≥98% Helium Recovery Device For Leak Testing Equipment

Operation Flow with Leak Testing Equipment:

Operator places the workpiece on the conveyor line, attaches the quick-connect fitting, and starts the line. (Workpiece sealing fittings and male quick-connect fittings are provided by Haier.)

High-pressure air pre-test: Injects 5MPa of compressed air into the workpiece to detect major leaks. Monitors pressure variation within a set time interval to determine leak status. Qualified workpieces proceed to the next step; unqualified ones trigger an alarm.

Vacuum evacuation: Applies vacuum to qualified workpieces from the major leak test. Upon successful evacuation, automatically fills with helium. Unsuccessful evacuation triggers an alarm.

Helium filling: Fills evacuated workpieces with 0.8-1.2MPa of helium (adjustable above 70% concentration). Qualified workpieces proceed; unqualified ones trigger an alarm.

Leak detection: Places helium-filled workpieces in a leak detection chamber and uses a helium mass spectrometer with a suction probe to identify potential leaks.

Helium recovery: Recovers helium from the workpiece using a vacuum method at the recovery station for reuse. If the internal pressure is below the set limit, an alarm is triggered.

Data recording: The system records the number of defects and helium refills for each type of issue.

Product Features with Leak Testing Equipment:

High-pressure Nitrogen Leak Detection: Primarily consisting of pressure sensors, solenoid valves, and piping, it monitors pressure changes to achieve major leak detection.

Evacuation System: Composed mainly of vacuum pumps, vacuum gauges, solenoid valves, and piping, it can evacuate air from the workpiece to ensure helium purity.

Helium Filling System: Primarily consisting of pressure sensors, solenoid valves, and piping, it can fill helium into the workpiece at a set pressure.

Recovery System: Integrated with compressors, sensors, solenoid valves, piping, vacuum pumps, helium concentration meters, and gas storage tanks, it can recover and store helium. When the concentration falls below a set value, it alarms and automatically replenishes helium. Additionally, it is equipped with a pressure gauge to monitor recovery pressure.

Electrical Control: Utilizing touch screen controls, it enables the setting of operational parameters (such as leak detection time and pressure), work status monitoring (providing real-time feedback on equipment status), fault alarming, and manual maintenance functions.

Product Parameters with Leak Testing Equipment:

Product Image with Leak Testing Equipment:

Our advantage service:

We have our own developing and designing team, which ensure our own technological and innovative products for customers.
For any customers who have new idea about some products, just let us know, we can according to your idea provide a unique design of the products.

Technical support:

All our workers are experienced and skilled.

After sale service:
Our working team and sales teams can guarantee a fast and high efficiency after-sale service for our product sold to everywhere of the global.

About Us:

Guangzhou Hejin Automation Control Technology Co., Ltd. is a modern enterprise specialized in the research and development, manufacturing, and sales of technology-intensive industrial equipment. The company's leading products include vacuum helium leak detection equipment, automatic brazing machines for gas/liquid filling and recovery systems, lean production lines, and laboratory testing equipment. These products are widely used in industries such as automobiles, refrigeration, power, home appliances, electronics, pharmaceuticals, plumbing, military, and others. Led by Mr. Li Jianhe, an expert with profound knowledge in vacuum and automated testing equipment, the company possesses its own core technology and holds multiple invention and utility model patents. Relying on a high-level talent team, the company has adopted a new production model focused on development and design, assembly and debugging, as well as after-sales service, and provides products that are suitable for customers' specific usage and technical requirements. Since its establishment, the company has introduced various types of specialized equipme