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By vacuuming the vacuum chamber, the sample immersed in water is subjected to internal and external pressure difference, and the gas escape in the sample is observed to determine the sealing performance of the sample; the vacuum chamber is evacuated to generate internal and external pressure of the sample. Poor, observe the sample expansion and release the vacuum shape of the sample to determine the sealing performance of the sample. 
Note:
Seal Tester Product Model MFY-1 (Economy)
Product use: MFY-1 seal tester is suitable for sealing test of packaging bags, bottles, tubes, cans, boxes, etc. in food, pharmaceutical, medical equipment, daily chemical, automotive, electronic components, stationery and other industries. It is also possible to test the sealing performance of the test piece after the drop and pressure test.
Product Features 1. With manual control, the operation is more convenient and the performance is more stable.
2. All pneumatic originals are made of well-known manufacturers, and the performance is stable and reliable. The pressure holding instability caused by pneumatic originals is eliminated.
3. High-quality plexiglass (acrylic) sealed barrel, the wall thickness is increased to 15mm, which effectively enhances the compressive strength of the sealed barrel and prolongs the service life.
4. Electronic pressure holding device reduces mechanical wear and makes the holding time last longer.
5. PVC operation panel, pressure pointer display, instant and accurate, convenient for users to quickly check the pressure value.
Test principle:
By vacuuming the vacuum chamber, the sample immersed in water is subjected to internal and external pressure difference, and the gas escape in the sample is observed to determine the sealing performance of the sample; the vacuum chamber is evacuated to generate internal and external pressure of the sample. Poor, observe the sample expansion and release the vacuum shape of the sample to determine the sealing performance of the sample.
Technical parameters 1. Vacuum degree: -90kPa～0
2. Accuracy: Level 1 3. Vacuum chamber effective size: Φ300mm × 390mm (H) (standard)
Note: Other sizes can be customized.
4. Air source pressure: 0.7MPa (air source user-supplied)
5. Air source interface: Φ8 polyurethane tube 6. Dimensions: 460mm (L) × 360mm (B) × 530mm (H)
7. Power supply: AC220V50Hz
8. Net weight: 12kg
Standard configuration: host + experimental sealed barrel + air source line according to standard: GB/T15171, ASTMD3078
More information!
Jinan Jingji Testing Instrument Co., Ltd.
Briefly analyze the operation and maintenance of the seal tester products: