Accessory for MCR:
Pressure Cell
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- For investigation of the effect of pressure on rheological properties
- Unique pressure range of up to 1,000 bar
- Choose between gas or liquid pressurization
Combine a pressure cell with your MCR rheometer to perform rheological tests under controlled temperature and high pressure. The cells can be used to simulate process conditions, measure the effect of pressure on rheological properties, or prevent sample evaporation above the boiling point. Typical applications are in the fields of polymers, petrochemicals, oil recovery, and food processing (e.g., starch gelatinization or protein extrusion). A wide range of pressure cells and measuring systems ensures the best possible solution for your application.
Key features
More than just standard pressure solutions
Offering an unmatched range of up to 1,000 bar, the pressure cells are available with gas- or liquid-pressurization options. The broad portfolio includes low-temperature and flow-through options, alongside custom solutions tailored for special applications. Various measuring geometries, including parallel plate geometries for highly viscous samples, are available to meet diverse testing needs. Anton Paar's pressure cells comply with the Pressure Equipment Directive (PED), ensuring top-tier safety standards. They are designed to handle all fluids except explosives, including Fluid Group 1 flammable liquids.
Starch pressure cell up to 30 bar
The starch pressure cell is engineered for precision in food sample analysis. Designed for a maximum temperature of 160 °C, it features fast heating and cooling to accommodate flexible temperature profiles and prevent scorching. Ideal for a wide range of food samples including starch, plant-based foods, and protein extrusion, this stainless-steel pressure cell ensures that substances like starch suspensions do not boil or evaporate, even under the high temperatures necessary to simulate various processing parameters. Versatile in application, it can be used in self-pressurization mode or combined with a gas pressure supply, enhancing its utility in both food manufacturing and research settings.
Pressure up to 400 bar (self- or gas-pressurization)
Pressure cells rated for 150 bar (up to 300 °C in stainless steel or Hastelloy) and 400 bar (up to 200 °C in titanium) are suitable for self-pressurization or gas-pressurization modes. They are versatile enough to measure polymer melts using optional parallel plate geometry, which is ideal for assessing rheological behavior in the presence of supercritical CO2. This solvent is extensively utilized in polymer processing for modification, formation, blending, and foaming. Understanding rheological properties under these conditions is essential for process optimization. The same cells are also used to explore the impact of high pressure on motor oils, helping to enhance lubrication and extend the life of modern engines.
Pressure up to 170 bar (self-, gas-, or liquid-pressurization)
Due to the smart design of the 170-bar pressure cell, it can be used in gas-pressurization, liquid-pressurization, self-pressurization, and flow-through modes, making it the optimal choice for a variety of applications up to 170 °C. The completely filled measuring chamber prevents rod climbing in viscoelastic materials. Even highly viscoelastic materials like drilling and fracturing fluids can be pumped into the cell using the optional pressure supply unit with a separator. The separator also facilitates the handling and measurement of critical fluids, especially in terms of cleanability and reactivity.
Pressure up to 1,000 bar (self- or liquid-pressurization)
The pressure cell for up to 1,000 bar and 300 °C is designed for use with a liquid pressure supply. The completely filled measuring chamber prevents rod climbing in viscoelastic materials such as drilling fluids. Extended simulations of processing conditions are enabled by the high pressure of 1,000 bar in combination with a fully functional dynamic shear rheometer (e.g., the conditions in an oil well borehole). Even temperatures down to -30 °C are available on request. This functionality allows for detailed studies into the temperature-dependent crystallization processes of drilling fluid brines or the low-temperature properties of motor oils, among other applications.
Specifications
| Pressure cell | Pressurization type | Bearing type | Temperature rangea | Measuring systemsb | Available materials (standard)c |
| 30 bar (Starch Pressure Cell) (435 psi) | Self- or gas pressurization | Ball bearing | 5 °C to 160 °C | Stirrer, concentric cylinder | Stainless steel |
| 150 bar (2,175 psi) | Self- or gas pressurization | Ball bearing | -30 °C to +300 °C | Stirrer, concentric cylinder, parallel plate, double gap | Stainless steel, Hastelloy |
| 150 bar/XLd (2,175 psi) | Self- or gas pressurization | Ball bearing | -10 °C to +200 °C | Stirrer, concentric cylinder, parallel plate, double gap | Stainless steel, Hastelloy |
| 400 bar/XLd (5,800 psi) | Self- or gas pressurization | Ball bearing | -10 °C to +200 °C | Stirrer, concentric cylinder, parallel plate, double gap | Titanium |
| 170 bar/XLd (2,465 psi) | Self-, gas- or liquid pressurization | Jewel bearing (sapphire) | 25 °C to 170 °C | Concentric cylinder, double gap | Titanium, Hastelloy |
| 1,000 bar (14,500 psi) | Self- or liquid pressurization | Jewel bearing (sapphire) | 25 °C to 300 °C | Concentric cylinder | Titanium |
a Lower temperatures available on request (depending on pressure cell)
b Customized systems available on request (depending on pressure cell)
c Other materials can be checked on request (depending on pressure cell)
d Cells marked with "XL" have a larger measuring system diameter
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- More than 350 manufacturer-certified technical experts worldwide
- Qualified support in your local language
- Protection for your investment throughout its lifecycle
- 3-year warranty
