Creep and Volume Expansion Tester for Carbonated PET Bottles

Multi-station bottle creep tester that holds filled PET bottles at constant internal pressure and temperature while tracking volume growth and height change. Used by CSD bottle producers to assess long-term shelf stability.

Specification

Bottles are connected to a regulated pressure manifold inside a temperature-controlled cabinet at 38 deg C for 24 hours or longer. Sensors record volume expansion and base change over time. The results show the creep resistance of preform and bottle designs.

Features

• Six independent stations with pressure regulation
• Cabinet maintains 38 +/-1 deg C
• Volume measurement by burette or sensor
• Data logging of pressure and temperature
• Individual shut-off valves for each bottle

Technical Specifications

Test standards	Creep and pressure retention method per customer CSD bottle specification
Number of stations	6 bottles
Pressure	0 to 6 bar, +/-0.05 bar
Temperature	Ambient to 60 deg C, +/-1 deg C
Volume resolution	0.5 ml
Bottle size	250 ml to 2.5 litre
Cabinet	Insulated stainless steel interior
Power supply	230 V AC, 50 Hz

Standard Accessories

• Neck connectors
• Pressure regulator set
• Burette kit