Automatically Vacuum Chamber Helium Leak Test System for Refrigeration Parts

It is required to be leak free for the heat-exchangers, valves, reservoirs and others else refrigeration parts. As there might have welding defects, it is necessary to do leak test before product assembly. The normal solution is auto vacuum chamber helium leak test system, the integral leak would be tested quickly and precisely.

Test Concept

• Charge high pressure gas into the product for gross leak test and proof test；

• Evacute the vacuum chamber.

• Vent gas from the product.

• Evacuate the product and charge helium into the product.

• Test the helium signal from the vacuum chamber by the leak detector for fine leak judge.

• Recover helium from the product.

Technical specification:

• Cycle time:30s/s. (for reference, demanded by customer)

• Leak rate:1.0E-5mbar.l/s (relevent 2g/a R134a) (for reference, demanded by customer)

• Test pressre:8-42bar (for reference, demanded by customer)

Main parts of system

• Vacuum pump: Leybold

• Vacuum sensor: Inficon

• Helium leak detector: Inficon

• Presure sensor: GE

• Solenoid valve: Burkert

• PLC: Omron

• HMI: Omron

• Helium recovery unit: HJ

Patent Certificate:

Company View:

International Coorperation:

Guangzhou HongCe Equipment Co., Ltd (hereinafter referred to as HongCe) is located in Guangzhou, China, since 2003, engaged in developing and providing test equipment and detection system for electronic & electrical products, house appliances and other products. HongCe is professionally dedicated in providing laboratory testing equipment and production line testing system, we are now the high-tech enterprises with technical superiority and R & D capabilities in test instruments industry.

Our core technologies encompass vacuum, leak testing & automatic control, laboratory test equipment & solution. Our technical leader is an expert in leak detection, his more than 2 decades of experience are a great asset to our firm. Our technical team is comprised of wellexperienced engineers and technicians.

HongCe laboratory testing equipment are designed and manufactured as per the requirements of GB, IEC, EN, UL, VDE, BS, AS, ISO standards and etc. Our main products are: switch, plug, socket and coupler test equipment; mechanical strength impact test equipment; material fire hazard test equipment, enclosure protection test probes; waterproof and dustproof environmental testing equipment; household appliances testing equipment; wire and cable testing equipment; luminaires test equipment; electric tools test equipment; information technology and audio & video test equipment. Our products are widely used in domestic and worldwide measurement & certification institutions, inspecting mechanism, laboratories, export & import inspection and quarantine bureau, various production companies and etc. Our customer includes Bureau Veritas, CSA, ITS, UL, TUV Rheinland, TUV SUD, SGS and etc.

HongCe production line testing equipment are mainly customized according to client's workpieces, such as automatic leak testing system, gas recovery system, other tailor-made system based on vacuum & leak testing technology.