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What kinds of airtightness tester are there? Let's take a look below.
A, differential pressure type leak tester
Leak tester is also known as air tightness tester, air leakage tester, air tightness meter and so on. There are many kinds of names, mainly used for sealing detection of products.
Differential pressure type leak tester compared with the traditional leak tester in addition to saving labor costs, reduce the detection of links, it is compared with the direct pressure type, direct pressure type leak detection technology due to poor accuracy, but also more and more unable to meet the actual requirements. Differential pressure type mainly adopts high sensitivity differential pressure sensor, which has higher testing precision; it adopts large diameter gas control valve, which has the advantages of fast filling speed, good sealing, no heating, long service life and so on. Differential pressure gas leak tester for automotive, aviation, electronics, gas equipment and other fields to make a positive contribution, but also to provide a wider space for its development.
Second, micro-flow type leak detector
Micro-flow type leak detector if you live through the detection of the measured piece of air flow per unit of time compared with the standard parts, check whether the workpiece is qualified. This leak detector uses a micro-flow sensor, directly read the air flow through the sensor, the instrument directly shows the leakage rate of the tested part. The test results have nothing to do with the volume of the tested part, and the test process is simple, fast, and the test results are true and accurate.
Micro-flow type leak detector is also widely used, mainly used in motor vehicle parts: carburetor, motorcycle engines, into the oil needle valve, fuel tank switch; gas appliances: gas cooker, gas meter valves, gas grills, plug valves, gas water heaters; electrical appliances: hermetically sealed relays, sealing motors, submersible pumps, solenoid valves; other: medical equipment, watches, underwater cameras, food packaging etc.
Three, gas appliances special leak detector
This type of leak detector is also a differential pressure method, but is based on the gas appliance industry research and development of low-pressure differential pressure leak detector, suitable for product testing online. This kind of leak detector is mainly suitable for gas appliances: gas cooker, plug valve, regulator, solenoid valve, proportional valve, stove. There are some other industries, such as: carburetor, motorcycle engine, car kettle, washing pump, medical products, food packaging, waterproof motors, car lights, etc..