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At Geo Drytech, selecting the right material of construction is an important part of designing reliable and efficient chemical process equipment. The performance and service life of equipment will be influenced by process conditions like temperature, pressure, vacuum, chemical composition, corrosion level, product characteristics and operating environment.
We produce process equipment in various Materials of Construction (MOC) per the application requirement and customer specifications. The selection of products that we use is based on chemical compatibility, mechanical strength, corrosion resistance, equipment safety, materials maintenance and equipment performance.
Geo Drytech provides process equipment in various materials to suit the process and operating conditions.
Chemical, pharmaceutical, food and speciality processing applications are widely used in stainless steel for its corrosion resistance, durability, ease of maintenance and clean surface.
It can be used for equipment that is required to be hygienic and corrosion resistant in product handling of liquids, chemicals, solvents, powders, slurries and wet cakes, or other process materials.
Common applications include:
Mild steel is far more typical in industrial process equipment where corrosion resistance is not the main consideration. It offers high mechanical strength, good structural reliability and cost-saving manufacturing.
Depending on the process conditions, mild steel construction can be chosen for appropriate storage, processing, structural, and material-handling applications.
Key characteristics include:
Hastelloy C-276 is a corrosion-resistant alloy that can be used in challenging chemical processing applications.
It may be utilised for equipment used to handle strong chemicals, solvents and corrosive process media where traditional stainless steel has proved inadequate.
The following are all potential applications:
The suitability of Hastelloy C276 for the final application will depend on the concentration of the chemicals used, operating temperature, pressure, and general circumstances.
Another corrosion-resistant material used for special chemical processing applications is Hastelloy C-22.
It can be used when equipment is exposed to aggressive process media and a higher corrosion resistance is desired. Material selection is determined in detail from the process conditions and chemical compatibility.
Rubber-lined mild steel is a steel that is internally protected and has the mechanical strength of a mild steel.
The rubber lining minimises the direct contact between the process media and the base metal, thus making it appropriate for certain corrosive chemical applications.
Advantages include:
Depending on the process conditions, rubber-lined mild steel can be used for chemical storage, filtration, chemical processing and handling equipment.
PPFRP is used in certain chemical processing applications where resistance to specific corrosive environments is desired.
It is a combination of polypropylene and fibre-reinforced plastic construction; it is suitable for chemicals and process conditions that are compatible.
It applies to various factors including temperature, pressure, chemical concentration, mechanical load, and equipment configuration.
There is no one right material for which the type of equipment is the only criterion. Before settling on the MOC, Geo Drytech takes into account several process parameters.
The material chosen should be compatible with the chemicals, solvents, liquids, powders or slurries used within the equipment. When corrosion, contamination, and premature equipment deterioration are issues, material compatibility is important.
Materials react differently under higher and lower temperatures. This can be important in the design and operating temperature of the equipment when selecting material.
When the equipment is operating under pressure or vacuum, it needs to have appropriate material strength and mechanical properties to ensure structural reliability during operation.
In corrosive chemical environments, materials are chosen according to the type and concentration of the process media.
For pharmaceutical, chemical, food and speciality product applications, material selection is also critical for ensuring the desired product quality and minimising the potential for contamination.
The material should be able to resist mechanical force during mixing, stirring, rotating, filtering, drying, heating, cooling and material transfer operations.
It is also important to select appropriate construction materials for process equipment that are easy to clean, inspect, repair and maintain.
Depending on the process and application needs, different materials of construction can be used for Geo Drytech equipment.
We offer equipment in a range of:
The final MOC for each piece of equipment is determined by the process data, design requirements of the equipment, specifications from customers, and applicable engineering standards.
A wide variety of industries require the use of suitable process equipment to ensure reliable operation, and reliability is a key consideration when selecting materials for these industries. Geo Drytech makes process equipment for this very purpose.
Appropriate materials for pharmaceutical processing applications such as API, intermediates, solvents, powders, wet cakes, filtration, drying, mixing and reaction processes.
The concentration, temperature, pressure, and corrosiveness of the chemicals will dictate the required construction of the chemical process equipment, which can be stainless steel, Hastelloy, lined materials, or other suitable materials.
Pesticides, fertilisers, herbicides, intermediates and other agrochemicals can be processed in process equipment designed to meet process requirements.
The appropriate construction materials can be chosen for use in mixing, drying, heating, cooling, and filtration food processing applications.
The equipment can be developed to process polymers, resins, compounds, powders and solvent materials.
Suitable operating conditions are often required for speciality chemical applications. Chemical compatibility, corrosion conditions, operating temperature and pressure are the factors used to select suitable MOC.
Selecting an appropriate material of construction helps improve process reliability and equipment performance.
Appropriate MOC selection can contribute to providing:
Selection of material should then be made according to the actual operating and process conditions and not solely on the equipment cost.
Different operational requirements for each process. Hence, Geo Drytech offers customised equipment solutions according to each application.
Before finalising the material of construction, we take into account:
From this information, the design of the equipment and appropriate material can be considered for the process to be used.
Choosing the right material of construction is crucial for equipment durability, process efficiency, safety, and performance.
Share your process details, chemical characteristics, temperature, pressure, vacuum, capacity requirements, and application requirements with Geo Drytech. We can help you identify chemical process equipment that can be customised with an appropriate material of construction for your application.
Contact Geo Drytech for industrial drying, filtration, reaction, mixing, storage, heat transfer and custom chemical process equipment solutions.