burganuae

Vacuum Degassing Oven VDO

The VDO is a precision-engineered pressure vessel designed to remove air bubbles from asphalt binder samples after aging in a Pressure Aging Vessel (PAV). By creating a controlled vacuum at elevated temperatures, it ensures the integrity of samples before they undergo rheological testing.

Key Performance Features

  • Fully Automated Degassing: A simple touch-command interface manages the entire vacuum and temperature cycle, ensuring strict adherence to testing protocols.
  • Rapid Recovery: High-efficiency heating elements and a powerful vacuum pump significantly reduce the time required to reach set-points.
  • Space-Saving Design: Features a compact, benchtop footprint with a self-contained vacuum system, eliminating the need for external pumps.
  • Enhanced Visibility: Equipped with a heat-resistant glass viewing port, allowing operators to monitor the sample behavior during the degassing process.
  • User-Friendly Software: Displays real-time data on a digital controller, tracking both vacuum levels and temperature throughout the cycle.

Technical Specifications

  • Standard Compliance: Fully meets AASHTO R28, ASTM D6521, and EN 14769 requirements.
  • Temperature Range: Adjustable up to 170°C with high-precision stability ($\pm 5$°C).
  • Vacuum Capability: Maintains a constant vacuum of 15 kPa (absolute) as required by international standards.
  • Sample Capacity: Accommodates up to four standard sample containers simultaneously.
  • Data Connectivity: Features a USB port for easy data export and test report generation.
  • Safety Controls: Includes an automatic pressure release valve and an over-temperature protection circuit.