Jiubin JB-C5 Building Exterior Window Integrated Physical Performance Tester (Air Tightness, Water Tightness, Wind Load Resistance)
| Brand | Jiubin |
|---|---|
| Origin | Shanghai, China |
| Model | JB-C5 |
| Wind Pressure Range | –8000 to +8000 Pa (for wind load resistance) |
| Air Flow Rate | 0–540 m³/h |
| Water Spray Rate | 2–3 L/m²·min |
| Displacement Measurement Range | 0–50 mm |
| Specimen Size Capacity | 0.8 × 0.8 m to 3.0 × 3.0 m |
| Power Supply | AC 380 V, 50 Hz, 20 kW |
| Required Installation Space | 6 m × 5 m × 3.6 m |
| Accuracy Class | 0.25 (pressure), 3 (air flow), 2.5 (spray), 0.2 (displacement) |
Overview
The Jiubin JB-C5 Building Exterior Window Integrated Physical Performance Tester is a fully compliant, engineered system designed for standardized evaluation of three critical physical performance parameters of architectural fenestration systems: air leakage (air tightness), water penetration resistance (water tightness), and structural load capacity under dynamic wind pressure (wind load resistance). It operates in strict accordance with the technical requirements specified in GB/T 7106–2019, the current national standard for testing methods of air permeability, watertightness, and wind pressure resistance of building exterior windows and doors. The system employs a modular, closed-loop pneumatic control architecture for precise differential pressure generation and regulation, coupled with calibrated volumetric airflow measurement using orifice plate-based flow meters traceable to national metrological standards. For water tightness assessment, a programmable spray rack delivers uniform, metered water flux across the specimen surface under controlled static and dynamic pressure conditions. Structural response during wind loading is monitored via high-resolution linear displacement transducers mounted directly on the test frame and specimen supports, enabling real-time deflection tracking per ISO 12210-2 and EN 12152 reference methodologies.
Key Features
- Triple-function integrated platform supporting concurrent setup and sequential execution of air tightness, water tightness, and wind load resistance tests per GB/T 7106–2019, eliminating need for separate dedicated test rigs
- High-stability pressure control system with dual-range capability: ±8000 Pa for wind load simulation (Class 0.25 accuracy) and ±300 Pa for low-pressure air leakage quantification (Class 0.25)
- Calibrated volumetric airflow measurement channel covering 0–540 m³/h (Class 3 accuracy), featuring temperature- and humidity-compensated thermal mass flow sensors and automatic zero-drift correction
- Adjustable spray system delivering 2–3 L/m²·min water flux (Class 2.5 accuracy) with uniform distribution verified by ASTM E331 spray mapping protocol
- Non-contact and contact displacement monitoring up to 50 mm full scale (Class 0.2 accuracy), supporting both static deflection and cyclic deformation analysis
- Modular test chamber design accommodating specimens from 0.8 × 0.8 m to 3.0 × 3.0 m, with reinforced steel frame and sealed gasket interface for pressure integrity verification
- Industrial-grade PLC-based control unit with Ethernet communication, supporting remote parameter configuration, real-time data logging, and hardware interlock safety protocols
Sample Compatibility & Compliance
The JB-C5 accommodates a wide range of commercial and residential window assemblies—including casement, tilt-turn, sliding, fixed, and curtain wall units—regardless of framing material (aluminum, PVC-U, timber, or composite). All test procedures align with mandatory verification steps outlined in GB/T 7106–2019, including pre-test calibration of pressure sensors against certified dead-weight testers, air leakage chamber leakage verification (per Annex A), and spray nozzle calibration prior to each water tightness cycle. The system satisfies foundational requirements for laboratory accreditation under CNAS-CL01 (equivalent to ISO/IEC 17025), and its pressure and flow instrumentation carry valid calibration certificates traceable to NIM (National Institute of Metrology, China). While not inherently FDA- or EU Notified Body-certified, its architecture supports integration into GLP-compliant quality systems through audit-ready data export and user access control logs.
Software & Data Management
The JB-C5 is operated via a Windows-based HMI application with role-based user authentication (administrator, operator, reviewer). Test sequences are defined using configurable templates that enforce step-by-step adherence to GB/T 7106–2019 clause-specific timing, ramp rates, dwell durations, and pass/fail thresholds. All raw sensor data—including pressure differentials, volumetric flow rates, spray duration/intensity, and displacement waveforms—are timestamped and stored in encrypted SQLite databases with optional backup to network drives. Export formats include CSV (for third-party statistical analysis) and PDF test reports containing instrument ID, calibration due dates, environmental conditions (ambient T/RH), operator ID, and annotated test curves. Audit trail functionality records all user actions, parameter modifications, and report generation events—supporting basic 21 CFR Part 11 compliance when deployed with validated IT infrastructure.
Applications
- Third-party certification laboratories performing mandatory type testing for CCC (China Compulsory Certification) and green building labeling programs (e.g., China Green Building Evaluation Standard GB/T 50378)
- Window manufacturers conducting internal R&D validation, production line QA sampling, and failure mode analysis of sealant integrity, hardware strength, and frame rigidity
- National and provincial construction material quality supervision institutes executing statutory market surveillance inspections
- University research groups studying correlations between structural geometry, gasket compression behavior, and air/water infiltration thresholds under combined thermal and mechanical stress
- Architectural engineering consultancies verifying performance specifications in tender documents and post-installation commissioning reports
FAQ
What standards does the JB-C5 comply with?
It is fully aligned with GB/T 7106–2019 and incorporates all mandatory test configurations, instrumentation tolerances, and procedural controls defined therein.
Can the system be used for curtain wall testing?
Yes—within the specified dimensional envelope (up to 3.0 × 3.0 m) and provided the support frame and anchoring configuration meet the rigidity requirements outlined in GB/T 7106–2019 Annex B.
Is calibration documentation included with delivery?
Each unit ships with factory calibration certificates for pressure transducers, airflow sensors, and displacement transducers, all traceable to NIM standards with stated uncertainty budgets.
What electrical infrastructure is required for installation?
A dedicated 380 V AC, 50 Hz, 20 kW supply with proper grounding and circuit protection is mandatory; minimum recommended cable gauge is 16 mm² copper.
Does the software support automated report generation with digital signature?
The base software generates compliant PDF reports with embedded metadata; digital signature integration requires optional PKI module deployment and local certificate authority configuration.
