Vacuum leak tester LT-PNP

pressurepneumaticimmersion

Product Introduction
The LT-PNP Positive & Negative Pressure Leak & Seal Strength Tester is designed for leak and seal integrity testing of flexible and aseptic packaging using both positive and negative pressure methods. It is suitable for flexible pouches, aseptic bags, plastic tamper-evident closures, flexible tubes, caps and other components. The instrument also supports container closure integrity testing (CCIT) of sterile medical packaging such as vials, ampoules, infusion bags, prefilled syringes and eye drop bottles using microbial ingress and pressure-based methods.

Key Features

• 7-inch color touch screen with real-time display of test data
• Supports both positive and negative pressure leak testing modes
• High-speed, high-precision sampling chip for accurate, real-time measurements
• Japanese SMC pneumatic components for stable, reliable operation
• Wide test range to accommodate diverse packaging types
• High-precision automatic constant-pressure control for stable experiments
• Automatic backwash unloading to minimize manual intervention
• Preset positive/negative pressure, hold time, test sequence and cycle count; one-click test execution
• Test chamber design ensures full sample immersion while preventing operator contact with test solution
• Integrated gas path for improved pressure retention and longer service life
• Real-time test curve display and quick access to historical data

Test Standards
This instrument conforms to international standards including ASTM D3654 and JIS/IS Z0237 relevant to leak and seal integrity testing for packaging used in medical and pharmaceutical applications.

Technical Specifications

• Model: LT-PNP
• Positive pressure test range: 0–300 KPa (standard; other ranges optional)
• Vacuum range: 0 to -90 KPa
• Response speed: < 5 ms
• Resolution: 0.01 KPa
• Sensor accuracy: ≤ 0.5 grade
• Built-in mode: Single point mode
• Display: 7-inch color touch screen
• Inflator head (standard): Φ6 or Φ8 mm; optional Φ4 mm, Φ1.6 mm, Φ10
• Positive pressure air source requirement: 0.4–0.9 MPa (user-supplied)
• Interface size: Φ6 or Φ8
• Hold time: 0–9999 (units configurable)
• Tank size: customizable
• Equipment dimensions: 420 × 300 × 165 mm (L × W × H)
• Air source: Compressed air (user supplied)
• Optional printer: pin-type or thermal
• Included components: main unit, test plate, weights, pressing roller

Applications

• Leak and seal integrity testing for flexible and sterile packaging in medical and pharmaceutical production
• Container Closure Integrity Testing (CCIT) for vials, ampoules, infusion bags, prefilled syringes and eye drop containers
• Quality control during production of tamper-evident closures, caps and flexible tubes
• R&D and validation of sterile packaging processes