Pressure Aging Vessel for Oil and Petroleum Testing Equipment

The Pressure Aging Vessel (PAV) is designed to simulate the long-term oxidative aging of asphalt binders using pressurized air and elevated temperatures. It evaluates changes in asphalt binder properties during in-service aging and is intended for use with residue obtained from the Rolling Thin Film Oven Test (RTFOT).

The system consists of an ASME-code stainless steel pressure vessel housed in a stainless steel cabinet with integrated band heaters. It includes a precision sample holder for testing ten specimens simultaneously, a pressure controller, a temperature controller, pressure and temperature measurement devices, a temperature recorder, and a specimen loading and unloading tool.

The programmable control system guides the operator through preheating, specimen loading, pressurization, aging, and test completion. Process temperature and pressure data are recorded at regular intervals, while minimum and maximum temperatures and out-of-range time are monitored for test documentation.

Manufactured by Atico Export for reliable asphalt binder aging evaluation and quality control in pavement materials laboratories.

• Accelerated oxidative aging of asphalt binders
• Simulation of long-term in-service asphalt aging
• Evaluation of asphalt binder durability
• Testing of residues obtained from the RTFOT procedure
• Research and quality control of road construction materials

Operating Pressure :

• 2.10 ±0.05 MPa (304 psi)

Temperature Range :

• 90°C to 110°C (194°F to 230°F)

Temperature Control Resolution :

• ±0.1°C

Test Temperature Uniformity :

• ±0.5°C

Time to Reach Setpoint :

• Approximately 3 hours from ambient temperature

Return to Setpoint :

• Approximately 120 minutes after preheating and specimen loading

Pressure Vessel Construction :

• ASME Code, Section VIII, Division 1

Maximum Pressure :

• 2.24 MPa (325 psi) at 120°C (250°F)

Pressure Safety Release :

• 2.24 MPa (325 psi)

Standard Components and Accessories :

• Stainless steel cabinet with integrated band heaters
• Sample holder for ten specimens
• Ten TFOT specimen trays
• Pressure controller
• Temperature controller
• Pressure and temperature measurement devices
• Temperature recorder
• Specimen loading and unloading tool

• Stainless steel pressure vessel designed to applicable ASME requirements
• Integrated band heating system
• Precision sample holder for ten specimens
• Programmable pressure and temperature control
• Guided operating sequence with clear status displays
• Continuous recording of temperature and pressure data
• Monitoring of minimum and maximum test temperatures
• Built-in timer for recording out-of-range time
• Rotating vessel lid with rounded support block for convenient opening and closing
• Specimen loading and unloading tool included
• Compact benchtop design