Pressure rise leak tester GBM-S1

electro-pneumaticpneumaticdigital

Product overview
The GBM-S1 is a positive-pressure water-immersion closure sealing integrity tester for quantitative evaluation of cap and easy-open container seal performance. It uses compressed air and a high-precision electronic pressure sensor under microcomputer control to produce repeatable, audit-ready test data suitable for production quality control.

Testing principle
The sample is immersed in water and internal pressure is raised above external hydrostatic pressure. Sustained emergence of bubbles during a defined dwell time indicates leakage. Typical acceptance criteria for non-carbonated closures: no air leakage at 200 kPa and no cap detachment at 350 kPa.

Executive standards

• GB/T 17876-2010 Packaging containers — Plastic tamper-evident caps
• BB/T 0025-2004 Plastic tamper-evident closures
• GB/T 17590-2008 Aluminum easy-open ends for three-piece cans
• GB/T 10440-2008 Cylindrical composite cans
• YBB00162002-2015 Aluminum ointment tubes for pharmaceutical use

Technical specifications

• Pressure range: 0 ~ 1 MPa
• Accuracy: ±1% FS
• Hold time: 0.01 s ~ 99.99 h
• Max sample size: Φ150 mm × 330 mm (H)
• Air supply pressure: 0.6 ~ 0.8 MPa
• Instrument dimension: 400 × 370 × 170 mm
• Power supply: 220 V, 50 Hz
• Power: 100 W
• Weight: main unit 5 kg; water tank 15 kg

Key features

• Precision pneumatic components: imported proportional valve for fast, stable pressurization with low noise.
• Fully automatic test cycle: automatic pressurization, pressure holding, stop and air reset controlled by microcomputer.
• Data management: built-in printer, USB port and PC software for monitoring, export and traceable records.
• GMP-compatible software: audit trail and multi-level user permission for regulatory compliance in food, beverage and pharmaceutical production.

Applications
Designed for non-carbonated PET bottled beverages, canned food and non-carbonated canned drinks, glass bottles with aluminum or plastic caps, three-piece cans and other packaging closures requiring leak integrity inspection.

Conclusion
The GBM-S1 provides a standardized, automated method for assessing closure sealing integrity in production and QC environments, delivering precise pressure control, traceable data and compatibility with pharmaceutical GMP requirements.