On October 23, the three-day 5th China International Air Conditioning, Ventilation, Refrigeration and Cold Chain Industry Exhibition (RACC2025) opened grandly at the Hangzhou Convention and Exhibition Center!

As the world's leading one-stop sealing testing solution service provider, Hirays unveiled its full-precision core product matrix at booth 2-C77/D93, demonstrating systematic sealing testing solutions covering different accuracy and efficiency requirements, attracting the attention and exchanges of many visitors and partners.

Full-precision product matrix to meet the needs of all scenarios

At this exhibition, Hirays' high-precision series of products such as helium mass spectrometry, hydrogen and nitrogen detection, RGA, and (refrigerant) online gas leak detectors were unveiled, covering all scenario needs from micro-leak detection to gas analysis.

01

HQ series hydrogen and nitrogen leak detector 

As one of the star products that have attracted much attention at the scene, the Hirays hydrogen and nitrogen leak detector integrates the four major functions of air tightness detection, hydrogen and nitrogen sensing, hydrogen filling and emission. One unit is equivalent to four units. It is an ideal choice for online detection and on-site inspection of production lines.

This product uses a safe and reliable hydrogen-nitrogen mixture (5%H₂+95%N₂) as the tracer gas. It has the high detection accuracy of 5*10-8pa·m3/s required to meet the requirements of most industrial scenarios, with faster response speed and lower detection cost.Among them, the HQ-100B handheld series supports multi-point sniffing, which can quickly locate leaks. It can be widely used in sealing testing and leak finding of heat exchangers, valves, pipelines, capillaries and other components, helping companies significantly improve quality inspection efficiency and optimize operating costs.

02

HM-400 Helium Mass Spectrometer Leak Detector 

With its ultra-high precision and excellent stability of 5*10-13pa·m3/s, the Hirays helium mass spectrometer leak detector has become the "ultimate judge" in laboratories, R&D centers and high-standard production lines.It uses helium as the tracer gas and can detect extremely small leakage rates. It is the gold standard for measuring product sealing performance and ensures that key components are foolproof. It can be widely used in the detection of core components that have extreme requirements for sealing, such as compressors, precision valves, and nuclear magnetic resonance cold heads.

03

RGA Residual Gas Analyzer

The RGA residual gas analyzer can not only perform high-precision quantitative leak rate detection, but also qualitatively analyze the gas components in the closed cavity.For example, it accurately identifies and quantifies various gas components such as H₂O, O₂, N₂, and CO₂ remaining in the cavity by measuring the intensity of ions with different mass-to-charge ratios.This is of irreplaceable value for diagnosing internal anomalies in the system (such as moisture contamination inside the compressor, failure analysis of vacuum insulation panels, verification of cleanliness of precision pipelines, etc.).

04

Refrigerant (online gas leak detector) 

Refrigerant (online gas leak detector), based on RGA (residual gas analysis) technology, can be used for refrigerant leakage testing of refrigeration products such as air conditioners, refrigerators, and freezers. For key refrigerants such as R134a and R600a, the minimum detectable leak rate is 0.05g/a.It uses a 10-inch touch all-in-one display, an intuitive interface, supports touch and keyboard and mouse operations, and is simple and easy to use.Combined with a high-sensitivity sniffer gun, the efficiency of online leak detection can be greatly improved.

The strength of the solution has attracted fans and gained high recognition

During the exhibition, Hirays technical experts sat at the booth all day long to provide guests with accurate answers to sealing testing problems such as "micro leaks are difficult to find", "cavity structures are complex" and "efficiency and cost are difficult to balance".The atmosphere was warm, with representatives from many domestic and foreign refrigeration equipment manufacturers and cold chain companies stopping at the booth and showing great interest in the solutions on display.

After in-depth exchanges with technical experts and demonstrations of equipment, many customers highly recognized Hirays products, and a number of cooperation intentions were reached on site.

Continuous innovation to empower the future

Accurate and efficient seal detection is the cornerstone of modern refrigeration and cold chain systems to achieve high energy efficiency and high reliability.As a leading company in the field of seal testing, Hirays will be driven by innovation and committed to professional services to provide global customers with accurate, reliable and efficient seal testing solutions, empowering a safe, energy-saving and sustainable future in the refrigeration field.