Volumetric Expansion Testing System

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Volumetric Expansion Testing System

Volumetric Expansion Testing System

High-Precision Hydrostatic Validation for Pressure Vessels

The HAWKSTEIN Volumetric Expansion Test System is a mission-critical solution for the periodic inspection and requalification of high-pressure gas cylinders. By utilizing the water-jacket hydrostatic method, this system provides precise measurements of elastic and permanent expansion, ensuring compliance with global safety mandates for CNG, Hydrogen, Oxygen, and industrial gas storage.

Technical Specifications

Feature Specification
Test Method Water-Jacket Hydrostatic Expansion
Cylinder Compatibility Metal (Steel / Aluminum) & Composite (Type II, III, IV)
Gas Types Supported CNG, H2, O2, N2, CO2, Ar, SCBA
Max Test Pressure Up to 1.5× Working Pressure (Customizable up to 1000 bar)
Expansion Accuracy ±0.1% of Total Expansion
Frame Material Heavy-Duty Corrosion-Resistant Stainless Steel
Pump System Self-Lubricating, High-Pressure Hydro-Pump
Automation PLC-based with Touchscreen HMI & Auto-Report Generation

Core Advantages

  • • Precision Automation: Digital data acquisition eliminates human error in volume measurement and timing.
  • • Multi-Industry Versatility: Seamlessly switch between testing medical oxygen cylinders, automotive CNG tanks, and aerospace nitrogen spheres.
  • • Enhanced Safety: The fully enclosed, spark-free design ensures operator protection during high-pressure cycles.
  • • Maintenance-Free Reliability: Featuring a self-lubricating pump system designed for continuous industrial duty without external airline lubrication.
  • • Customizable Throughput: Available in single-station or multi-cylinder configurations to meet high-volume certification needs.

Compliance & Global Standards

Our systems are engineered to help your facility meet and exceed the most stringent international regulations:

  • ISO 6406 / EN 1968: Periodic inspection of gas cylinders.
  • DOT CFR-49: US Department of Transportation regulations.
  • ASME Section VIII: Boiler and Pressure Vessel Code.
  • IS 8451 / GOI Rules: Indian standards and Government compliance.

FAQs

This limit is an industry-standard safety threshold. If a cylinder expands permanently by more than 10%, it indicates that the material has reached its "yield point" and has undergone plastic deformation. Reusing such a cylinder poses a high risk of catastrophic failure or explosion.

Yes. Our system is designed with sensitive pressure-rise controls specifically for Type III and Type IV composite cylinders, ensuring they are tested safely without damaging the fiber wrap while accurately measuring expansion.

While it depends on the cylinder volume and target pressure, our automated system typically completes a full fill, pressurization, hold, and expansion measurement cycle in 5 to 10 minutes per cylinder.

Absolutely. The HAWKSTEIN software automatically logs every test and generates a timestamped PDF report. This is essential for facilities that need to provide "Safety Certificates" to clients or government regulators.

Because we utilize a self-lubricating pump design, maintenance is minimal. There is no need for daily oiling or external lubrication. Periodic seal inspections and water filtration checks are usually all that is required for years of trouble-free operation

Applications

  • Certification Facilities: Third-party requalification and safety tagging.
  • Automotive: Periodic testing for CNG and Hydrogen vehicle fuel systems.
  • Healthcare: Ensuring integrity for life-critical Medical Oxygen supply.
  • Defense & Aerospace: Validation of SCBA and high-altitude life support tanks.
  • Energy & Oil: Integrity testing for large-scale industrial gas distribution
Important Note

Please Note: The technical specifications and images provided on this page represent our design benchmarks and manufacturing capabilities. Final system configurations, components, and performance parameters are customized and finalized based on specific client requirements and project scope.

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