Customized industrial pumps for chemical and pharmaceutical applications: the advantages of PFA

Customized industrial pumps for chemical and pharmaceutical applications: the advantages of PFA

To transfer a concentrated acid, a reactive chemical mixture, or a fluid intended for a process pharmaceutical, the industrial pumps They must be designed to maintain reliable and safe performance even when they come into contact with hazardous substances or high temperatures.

A standard centrifugal pump may not be suitable for every requirement: the chemical compatibility of the components, the resistance of the contact surfaces, the sealing system, the flow rate demand and pressure conditions must be evaluated together, taking into account the active behavior of the fluid. It is at this stage that the Customized industrial pumps they offer more appropriate responses than a configuration chosen solely based on general parameters.

Among the solutions to be taken into account most prominently are centrifugal pumps with a coating of PFA, a fluoropolymer characterized by high chemical resistance, good thermal stability, and particularly interesting properties for handling aggressive fluids and applications that require high levels of purity.

CDR Pompe It provides design, customization, and technical support expertise, as well as a wide range of PFA-coated products designed for the handling of chemical and pharmaceutical fluids.

Customized industrial pumps: what is important to consider

Customized industrial pumps adapt to the characteristics of the work to be performed. A fluid can be compatible with a specific material at a certain temperature and result more aggressive in different conditions; similarly, a pump properly sized from a hydraulic point of view must be constructed with materials and components suitable for the environment in which it will operate.

Before identifying the most suitable configuration, it is therefore necessary to collect and evaluate a series of technical information. The parameters to be considered include:

• Chemical compatibility of materials: The components in contact with the fluid must be suitable for its composition and the operating conditions;
• Operator safety: the pump must handle the fluid under safe conditions, taking into account the risks associated with corrosive, toxic or hazardous substances and the requirements of the installation;
• Prevention of losses: The choice of materials and containment system must minimize the risk of leaks, especially when the fluid can damage equipment or pose hazards to people and the environment.
• Continuity of production: An adequate pump, properly sized and designed according to the parameters of the system, helps to maintain a regular flow of liquid and to limit the stops caused by malfunctions or premature deterioration;
• Reduction of maintenance costs: resistant materials and a properly selected configuration can contain the frequency of extraordinary interventions, repairs, and replacements;
• Purity of the treated product: In pharmaceutical applications and processes that require high quality standards, it is important to evaluate materials and surfaces that limit unwanted interactions with the fluid and facilitate cleaning operations.

PFA: characteristics of a material designed for chemically aggressive environments

PFA, or perfluoroalkoxy, belongs to the family of fluoropolymers and is now used in a wide range of sectors thanks especially to its high chemical inertia. As for centrifugal pumps, its use as a coating allows for the protection of surfaces exposed to corrosion, offering a barrier against numerous aggressive agents.

The PFA’s choice is linked to a set of properties that are very useful in handling industrial fluids. Among the main characteristics:

• High resistance to corrosion: PFA resists the action of numerous chemicals, helping to protect the surfaces coated from deterioration;
• Good thermal stability: it maintains its characteristics over a wide range of temperatures, always respecting the limits stipulated by the project and the operating conditions;
• Smooth and non-porous surface: This property can facilitate cleaning operations and limit the possibility that residues remain attached to the surface;
• High purity and chemical inertia: useful characteristic in applications such as pharmaceutical ones, where the fluid must maintain its characteristics;
• Resistance to aging and aggressive agents: the stability of the material helps to preserve the performance of the coating over time;

These characteristics make the PFA a solution to be considered in the design of industrial pumps Customized designed for chemical plants, environments in which contamination of liquids must be prevented and a very high standard of environmental safety must be guaranteed.

Which corrosive fluids can be handled with the PFA coating?

One of the main reasons why PFA is considered in chemical applications is its resistance to many aggressive fluids. The coating can be particularly interesting when the pump surfaces are exposed to substances capable of attacking or deteriorating materials that have not been properly selected.

Among the fluids for which the use of PFA-coated centrifugal pumps can be considered are:

• Hydrochloric acid Used in degreasing, chemical synthesis and pH control, it exhibits high aggressiveness towards numerous metals, especially in the presence of moisture and high temperatures;
• Sulfuric acid: Used in summary, chemical treatments and dehydration processes require careful evaluation of concentration and temperature, which strongly influence their corrosive action;
• Nitric acid: Used in the production of chemical intermediates, fertilizers, and surface treatments, it is a highly oxidizing acid that requires materials compatible with the specific process conditions;
• Caustic soda: Used for pH regulation, plant cleaning and various chemical processes, it can attack certain materials depending on the concentration and temperature of the solution;
• Aggressive solvents: In summary, employees in the field of extraction and chemical formulation may interact with polymers and unsuitable materials, making it essential to verify compatibility with the coating;
• Highly reactive chemical mixtures: Used in synthesis and industrial processes, they can combine acidity, alkalinity, oxidizing or solvent power, requiring specific verification of the materials in contact.

The list should not be interpreted as an automatic compatibility with any concentration or temperature. The selection of the industrial pumps It must always start from the fluid data and the process conditions, verifying that the PFA and the other materials used are suitable for the intended application.

THE ADVANTAGES OF THE PFA SHEATHING FOR CUSTOMIZED INDUSTRIAL PUMPS

Longer durability and more predictable maintenance

When a pump operates with corrosive fluids, material deterioration is the main danger. Chemical attack can indeed affect the contact surfaces, altering the characteristics of the components and making more frequent maintenance necessary. Choosing an appropriate coating reduces this risk, protecting the exposed parts within the limits specified in the technical specifications.

The PFA in particular, thanks to its characteristics, can offer an important contribution to the lifespan of industrial pumps. Of course, the lifespan of a pump also depends on other factors such as proper sizing, operating conditions, installation quality, and maintenance performed. The coating alone does not eliminate wear or replace proper technical management.

However, when the pump is properly designed, equipped, and installed, the data show a reduction in extraordinary maintenance interventions on the systems (with a clear reduction in management costs) and a significant increase in the pump’s lifespan. Furthermore, such protection against corrosive agents maintains production continuity, simplifying the planning of the entire activity as well.

For those who need to purchase and manage industrial pumps in a plant chemical, Evaluating the resistance of materials therefore means considering the consequences of the choice on the environment. maintenance and continuity of service.

PFA and magnetic drive: a combination for fluid containment

The protection of operators and the working environment is linked to the pump’s ability to contain the fluid. In this sense, the PFA coating can be combined with a configuration with magnetic drive, In which rotation transmission occurs through magnetic coupling, without the direct mechanical connection typical of pumps equipped with mechanical seal traditional.

The PFA and the magnetic drive interveners thus address two different aspects of the pump: the first concerns the chemical resistance of the surfaces in contact, while the second concerns the fluid containment system.

The integration of these features, resistance to corrosion and reduced risk of dispersion of the liquid being transported, guarantees a high level of protection for both workers in contact with the pump and the environment, and also allows the company to comply with all the strict regulatory requirements typical of the chemical, pharmaceutical and food sectors.

For this reason, in industrial pumps For fluids classified as hazardous, the assessment of the coating must be accompanied by an analysis of the sealing or containment system and of the overall operating conditions.

Product purity and cleanliness: the value of PFA in pharmaceutical applications

The regulations in force in sector pharmaceutical They require some of the highest hygienic and sanitary standards in the world.

PFA also has interesting characteristics regarding cleanliness, thanks to its chemical inertness, smooth, non-porous surface, and its tendency not to retain residues. These aspects contribute to the handling of fluids of high purity.

Among the elements to be considered in choosing industrial pumps Customized for the sector pharmaceutical:

• Low particulate contamination: The use of PFA coatings greatly limits the release of particles into the treated fluid;
• High chemical inertia: PFA can reduce interactions with numerous substances, helping to preserve the product's characteristics;
• Minimal interaction with the processed fluid: it allows to preserve the characteristics of purity and concentration;
• Smooth and non-porous surface: These characteristics can facilitate the removal of residues during cleaning operations;

It is important to clarify that the presence of a PFA coating does not automatically determine the compliance of the entire pump with every requirement pharmaceutical. Materials, finishes, design, documentation, cleaning procedures, and applicable regulations must be verified based on the specific application.

When to choose PFA over other coatings?

There is no material that can be considered the best choice for every fluid and every application. Comparison with other construction solutions, including those in metallic materials or with other fluoropolymers, As always, you must take into account all the parameters we have discussed.

In general, the PFA can be considered as the cladding of a industrial customized pump when a request for customization is made. high resistance to corrosion, Because of very aggressive substances, and when the tExercise temperatures are significantly high and a certain threshold of thermal stability must be maintained.

The PFA is also suitable for continuous and long-term processes and to mobilize the liquid that must be maintaining unchanged concentration and purity. This is a coating that guarantees enormous reliability in chemical applications, while maintaining the pump’s performance under the intended operating conditions.

Customized industrial pumps: Typical applications in the sector chemical and pharmaceutical

Centrifugal pumps with PFA coating They can be used in various applications: the applications can vary depending on the fluid, the concentration, the temperature and the performance requirements of the system.

Sector chemical

In the sector chemical, the industrial pumps Custom-made PFA-coated containers can be evaluated for handling aggressive substances in operations such as:

• Transfer of concentrated acids;
• Pickling plants, in which the solutions used can be highly corrosive and require properly protected components;
• Surface treatments, which often involve the use of chemical baths and reagents with aggressive characteristics;
• Production of special chemicals, where the composition of the fluids and the process conditions may require customized solutions;
• Management of highly corrosive substances, for which the highest level of safety and containment must be guaranteed;

Sector pharmaceutical

In the sector pharmaceutical, attention is also focused on product quality and the cleanliness of equipment. Among the applications to consider are:

• Handling pharmaceutical active ingredients, or APIs;
• Management of reagents of high purity, For which it is important to limit unwanted interactions with contact surfaces;
• Production processes with high quality standards, In these cases, the selection of the pump must be consistent with the procedures for cleaning, checking and managing the fluid.

Customized industrial pumps based on the fluid

The PFA coating, also used for CDR centrifugal pumps, It offers significant advantages thanks to its resistance to numerous chemical agents, thermal stability, and surface characteristics that simplify maintenance and cleaning.

For companies that use industrial pumps In chemical pharmaceutical these sectors, a PFA coating combined with an appropriate configuration, such as the magnetic drive, contributes to the safe management of the fluids being handled.

CDR Pompe It assists its customers in the selection and customization of centrifugal pumps intended for industrial processes, providing technical expertise, support in material evaluation, installation, and commissioning.’After-sales service.

To learn about all our products, partners and new services, Contact us for advice.

 

Frequently Asked Questions

Does the PFA coating completely protect a centrifugal pump from corrosion?

No, the PFA coating creates a very durable barrier between the aggressive fluid and the pump surfaces, but it does not guarantee absolute protection. Concentration, temperature, mixture composition, and operating conditions must be verified before choosing. Proper design, installation, and the condition of the coating also count.

Which corrosive fluids can be handled with a PFA-coated centrifugal pump?

The use of PFA with hydrochloric acid, sulphuric acid, nitric acid, caustic soda, aggressive solvents and highly reactive chemical mixtures can be evaluated. The list does not indicate automatic compatibility with any concentration or temperature: selection always starts from the fluid data and the process conditions.

What information is needed to choose a industrial customized pump with PFA coating?

At a minimum, the fluid’s nature, concentration, operating temperature, flow rate and pressure conditions must be considered. The product’s purity requirements, safety, leakage containment, and applicable regulations also count. These data allow the compatibility of the PFA to be verified and the most suitable configuration to be defined.

What advantage does it bring to combine the PFA coating with the magnetic drive?

The combination combines two different protections: the PFA ensures the chemical resistance of the contact surfaces, while the magnetic drive transmission system eliminates mechanical connection without direct linkage, as is the case with the mechanical seal traditional system. This reduces the risk of fluid dispersion, benefiting operators and the environment.

Is the PFA suitable for pumps for pharmaceutical applications and for high-purity fluids?

Yes, the PFA has useful characteristics in terms pharmaceutical of chemical inertia, smooth and non-porous surface that facilitates cleaning, low particulate contamination and minimal interaction with the fluid. However, the coating alone does not ensure the compliance of the entire pump: materials, finishes, documentation, cleaning procedures and regulations must be verified for each application.

When is it advisable to choose the PFA over other coatings for a pump industrial?

PFA is suitable when high corrosion resistance is required for very aggressive substances, high operating temperatures with thermal stability, continuous processes with long duration, or liquids that must maintain concentration and purity. No material is the best in all cases; therefore, the comparison with metals or other fluoropolymers depends on the application parameters.