Industrial agitators are the heart of many processing plants, working daily to mix, blend, and keep fluids moving. Because they’re so integral to food and chemical processing, among other industries, a breakdown can be a significant and often costly problem. But with a solid maintenance plan, you can keep your equipment running smoothly for years.

This guide outlines essential steps to maintain your agitators and mixers, covering everything from basic cleaning to advanced monitoring, to help you get the most out of your machinery.

Understanding Industrial Agitator Maintenance Needs

An industrial agitator is a complex machine with moving parts that are under constant stress. They handle a range of viscosities and temperatures, and sometimes corrosive materials. Over time, this wear and tear takes its toll. Maintenance is as much about preventing problems as it is about fixing things when they break. A proactive approach helps you:

• Avoid Unexpected Downtime – Scheduled maintenance is much better than an emergency shutdown.
• Extend Equipment Life – Well-oiled and aligned machines last longer.
• Improve Safety – A malfunctioning agitator can be a safety hazard for operators.
• Save Money – Replacing a small seal is much cheaper than replacing a whole gearbox or motor.

Regular Inspections and Cleaning

The simplest way to prolong the life of your agitator is to examine it regularly. Visual inspections are your first line of defense. You should encourage your operators to walk around the equipment daily and look for anything unusual, such as:

• Leaks – Check for oil leaks around the gearbox or fluid leaks around the mechanical seal.
• Noise – Listen for grinding, banging, or unusual vibration noises. A change in sound often indicates a problem with the gearbox or its bearings.
• Vibration – Excessive shaking is a bad sign. It could mean the impeller is unbalanced or the shaft is bent.
• Temperature – If the motor or gearbox feels hotter than usual to the touch, it might be overheating.

Cleaning is just as important as inspecting, so make it a part of your daily or weekly routine. Dust, dirt, and chemical buildup can cause overheating or corrosion.

• Clean the Motor and Gearbox Fins – These fins help dissipate heat. If they’re covered in dust, the unit runs hotter, which shortens its life.
• Clean the Shaft and Impeller – If material builds up on the impeller blades, it can unbalance the system. This imbalance causes vibration that damages bearings and seals.

Proper Lubrication and Alignment

Friction is the enemy of rotating machinery, and proper lubrication is the best weapon you have against it. Your industrial agitator has bearings and gears that require oil or grease to operate correctly.

Lubrication Best Practices

You should follow strict lubrication guidelines, including:

• Use the Right Type – Always use the lubrication specified by the industrial agitator manufacturer. Using the wrong type can cause chemical reactions or fail to protect the parts under high heat.
• Check Levels Often – Check oil levels in the gearbox regularly. Low oil levels lead to metal-on-metal contact, which quickly destroys gears.
• Don’t Over-Grease – Too much grease can be just as bad as too little. It can cause seals to burst or bearings to overheat due to fluid friction.
• Sample the Oil – For larger gearboxes, take an oil sample periodically. Analysis can tell you whether there are metal particles in the oil, which indicates that gears are wearing down.

Checking Alignment

Misalignment is a silent killer of industrial agitators. If the motor, gearbox, and shaft are not perfectly aligned, it creates significant stress on the components. You should check alignment during installation, after any maintenance work where the motor was moved, or if you notice increased vibration.

Monitoring Wear on Impellers, Shafts, and Seals

The parts that actually touch your product take a beating. The impeller pushes through thick liquids or solids, and the shaft holds it all together. Over time, these parts wear down.

Inspecting Impellers and Shafts

Erosion and corrosion are common issues. If you’re mixing abrasive materials, the blades of the impeller will wear thin. If they wear unevenly, the agitator becomes unbalanced.

• Check for Thinning – Measure the thickness of the blades during major shutdowns.
• Look for Bending – A bent shaft will cause the impeller blade to wobble, which can destroy mechanical seals quickly.
• Check for Cracks – Stress cracks may appear near the hub where the blades attach. If a blade breaks off during operation, it can destroy the tank and the rest of the agitator.

Mechanical Seal Care

The mechanical seal is often the most sensitive part of the system. However, if it fails, your product will leak. To protect the seal:

• Never Run It Dry – Most seals need fluid to lubricate the faces. Running an agitator dry can destroy a seal in seconds.
• Check Barrier Fluids – If your seal uses a barrier fluid system, ensure the pressure and levels are correct.
• Monitor for Leaks – A small drip is often the first sign of failure. Address it immediately before it becomes a major spill.

Using Smart Monitoring and Predictive Maintenance Tools

Technology has changed how we handle maintenance. In the past, we fixed things when they broke or on a set calendar schedule. Now, we can use technology to tell us exactly when something is about to break. The following smart monitoring tools aid with predictive maintenance:

• Vibration Sensors – These small sensors attach to the gearbox or motor. They detect tiny changes in vibration patterns that a human hand cannot feel and can warn you of bearing failure weeks in advance.
• Temperature Probes – Continuous monitoring of oil and motor temperatures can trigger an alarm if things get too hot.
• Oil Analysis Sensors – Some advanced systems check oil quality in real time.

FAQ About Industrial Agitator Maintenance

How Often Should I Change the Oil in My Agitator Gearbox?

Typically, manufacturers recommend changing the oil after the first 500 hours of operation. After that, a standard interval is every 2,500 hours or every six months, whichever comes first. However, you should always consult your specific manual.

Can I Weld a Cracked Impeller Blade?

Small cracks might be repairable by a certified welder. However, welding adds heat and material, which can warp the blade or throw off the balance. If the crack is significant, it’s usually safer and more cost-effective to replace the impeller.

What Causes an Agitator Shaft to Bend?

The most common cause is a “fluid shock” or hitting a solid object in the tank. This can happen if solids settle at the bottom and the agitator is turned on, forcing the blades to slam into the solid mass. Additionally, improper installation or severe vibration from an unbalanced impeller can cause bending over time.

DCI Specializes in Industrial Agitators

DCI is a leading industrial agitator manufacturer dedicated to quality and durability. Whether you need a new setup or specific industrial agitator parts to keep your current machine running, we have the expertise to help. Contact us today to discuss your needs and find the perfect solution for your facility.

Many aspects of working in a lab can be unpredictable, but your equipment shouldn’t be one of them. Picking the wrong vessel for tough applications can slow down your research and create safety risks. You need equipment that matches your process’s thermal and chemical needs. DCI INC.’s guide will help you choose the right pressure reactor for your lab, whether you run a small biotech setup or a large production plant. We’ll walk you through the most important engineering considerations and give you recommendations along the way.

Identify Your Laboratory’s Application Needs

Every decision you make about your pressure reactor will depend on your laboratory’s uses. A bioreactor that will be used for cell cultures will need one surface finish, while one used for pharmaceutical manufacturing will need another. So, before you begin picking out a pressure reactor, you should take note of specs such as expected temperature ranges, reaction speeds, and the chances of an exothermic reaction. DCI INC. engineers use this information to decide if you need a standard or custom design.

What About Reactor Size and Pressure Rating?

A benchtop unit handles heat and pressure differently than a pilot-plant vessel or a large-scale production tank. DCI INC. specializes in scaling your process from small biotech units to massive industrial vessels, ensuring that heat-transfer surfaces like dimple jackets are optimized for the specific volume of the tank. Start by finding your Maximum Allowable Working Pressure (MAWP) and add a safety margin. To ensure safety and compliance, our in-house engineering team calculates the MAWP and designs every vessel to strictly adhere to ASME Section VIII, Div. 1 standards.

The Materials Matter

If you choose the wrong metal, your chemicals can damage it in just a few days. The initial cost of the vessel is minor compared to the expense of contaminated batches or leaks. Make sure every part that touches your chemicals is compatible with your reagents and solvents. This decision affects both the lifespan of your equipment and the purity of your product.

316L Stainless Steel

Stainless steel, specifically 316L stainless steel, is one of the most widely used materials for high-pressure reactor vessels. Labs across the world have used this form of stainless steel since the 1950s. It’s proven its ability to handle solvents and standard pH ranges without damage or degradation. Even better, it’s typically the most cost-effective choice for standard pharmaceutical compounds and food-grade applications. When you combine all that with its ability to stand up to rigorous Clean-In-Place (CIP) procedures, 316L steel just might be the ideal choice for many labs.

Specialized Alloys

If you use hydrochloric acid at high temperatures or other strong halides, standard stainless steel might not be the best choice. In these cases, alloys like Hastelloy, Monel, AL-6XN, or Inconel are recommended. These materials are made to resist pitting and stress-corrosion cracking in tough environments. DCI INC. specializes in building with these alloys for situations where reliability is critical. Although these materials cost more, their longer lifespan makes them a smart investment.

Corrosion Resistance

Pitting and stress corrosion cracking are silent killers of pressure vessels. A reactor might look fine on the outside while microscopic fissures compromise the interior wall. You must review your chemical compatibility charts twice before signing off on a fabrication order. DCI INC. take personal pride in welding and polishing surfaces to minimize corrosion initiation sites. Their expertise ensures your vessel maintains its integrity over thousands of operational cycles.

Prioritizing Safety in Your Selection

When using pressurized vessels, always watch for possible failure points and leaks. Set up your safety measures with the expectation that something could go wrong, so your facility stays safe. Some of the safety features that you should pay attention to include:

• Safety Valves: Rupture discs and relief valves prevent catastrophic overpressure events by venting excess force.
• Pressure Gauges: Calibrated analog and digital gauges allow operators to spot anomalies before they become critical.
• Emergency Shut-off Systems: Automated triggers stop reagent feeds or heating elements immediately when setpoints are breached.
• Temperature Controls: Jacketed designs and internal coils manage thermal energy to prevent runaway reactions.

The Impact of Agitation and Mixing Requirements

A reaction works best when everything is mixed evenly. You may need a basic anchor agitator for thick liquids or a high-shear impeller for mixing gases and liquids. Poor mixing can cause hot spots, uneven yields, and incomplete reactions. DCI INC. creates custom agitators and mixers that fit your vessel’s shape. We make sure your mixing system removes dead zones and helps heat move efficiently through the batch.

Look for Ease of Use, Maintenance, and Automation

If cleaning the vessel takes hours and requires special tools, technicians may avoid using it. Look for features like quick-release clamps, swing-out designs, and automated data logging. These features make the vessel easier to use, reduce mistakes, and let researchers focus on analyzing data instead of manual tasks. Automation also helps you get consistent results, which is important in regulated fields like pharma and biotech.

Understand Certification and Standards

Without proper paperwork, a pressure vessel is just a metal container. Make sure your equipment meets ASME Boiler and Pressure Vessel Code standards. DCI INC. supplies full documentation and follows strict quality controls from start to finish, all done in-house. This traceability is important for insurance and regulatory checks. Always choose certified high-pressure reactors, since certification shows your equipment is safe.

Frequently Asked Questions

What makes a high-pressure reactor different?

Put simply, high-pressure reactors are designed and built to withstand stronger internal forces. They are able to handle these forces due to factors like increased wall thickness, specialized types of seals, and special closures, such as bolted flanges or breech-lock systems.

How do I figure out the right pressure rating?

Your pressure rating will depend on your application and its Maximum Allowable Working Pressure (MAWP). Our in-house engineering team can work with you to help you calculate the MAWP. On top of that, our vessels and designs meet the standards of ASME Boiler and Pressure codes.

What can custom-engineered pressure vessels do in a lab?

A custom pressure vessel allows you to work with liquids at temperatures far exceeding their atmospheric boiling points. This enables unique solvent environments that accelerate reaction rates and support specialized crystallization processes.

Get a Quote From DCI INC. Today

The right equipment is key to a safe and successful lab. At DCI INC., we take care of everything from design to testing to make sure your vessel meets all your needs. Our employee-owners are proud to build equipment that lasts. Contact us to request a quote and find the best solution for your lab.

How Do Welding Techniques Affect Durability?

When you choose a stainless steel vessel, you are investing in the reliability of your overall processes. In industries like pharmaceuticals or food and dairy, equipment integrity is what separates smooth production from expensive downtime. The alloy grade is important, but how the metal sheets are joined truly determines how long the vessel will last. Discover how DCI INC.’s welding techniques impact durability. With skilled craftsmanship, we turn stainless steel and specialty alloys into vessels that handle high pressure and temperature.

The Importance of Welding in Stainless Steel Tank Construction

Welding is more than just joining metal. It is essential for the strength and performance of any pressure vessel. If a weld fails, the whole system is at risk, which can cause leaks, contamination, or even major structural problems. At DCI INC., our employee-owners know that every weld must meet strict standards so the tank works reliably in tough conditions. We use our experience in high-purity and heavy-duty fabrication to make sure each joint is as strong and corrosion-resistant as the rest of the tank.

Breaking Down the Techniques

Knowing how fabrication works helps explain why we choose certain methods for each job. There is no single solution, since the material thickness and the tank’s purpose guide our choices. We use different welding techniques to balance speed, strength, and surface finish. Our facility can handle both precise, high-purity work and large industrial projects, so the vessel’s quality is always protected.

TIG Welding (GTAW)

Gas Tungsten Arc Welding, also called TIG, allows us to create the most precise welds possible. This technique results in joints without crevices, which is especially important for preventing bacterial buildup in sterile processes.

MIG Welding (GMAW)

Gas Metal Arc Welding (MIG) is the most effective option when welding thick materials or oversized parts. The ability to continuously feed materials in this technique makes it ideal for large structural attachments because it allows us to make joints that can withstand heavy pressures.

The Finishing Touches That Matter

A truly high-quality welding job requires certain finishing touches. Our regimen of post-weld treatments prevents corrosion and leaves a perfectly smooth surface. Some of the finishing techniques we use after welding include:

• Passivation: This chemical treatment removes free iron from the surface and accelerates the formation of the passive oxide layer, which is vital for preventing rust in food and dairy applications.
• Electropolishing: DCI INC. provides industry-leading electropolishing services, capable of achieving finishes as fine as 10 Ra or less, to remove microscopic peaks and valleys where bacteria or corrosion initiation sites could form.
• Surface Polishing: If your industry has specific Ra requirements, we can offer a complete range of mechanical polishes that cover the entire spectrum from #4 finishes to high-grit mirror finishes.
• Inspection and Testing: Our quality control team utilizes X-ray and dye penetrant testing to verify weld quality, ensuring that defects like porosity or microscopic fissures are identified and eliminated.

Common Welding Defects and Their Impact

Even the best alloys can fail if fabrication quality drops. Problems like porosity, lack of fusion, or undercut can create weak spots that crack under pressure or let bacteria grow, which can spoil products. DCI INC. prevents these issues by following strict ASME-certified quality controls. We use thorough testing, like radiographic and dye penetrant inspections, to find and fix defects before the vessel leaves our facility.

Choosing the Right Welding Technique for Your Application

Choosing the right fabrication method means knowing both the material and how the vessel will be used. Things like tank size, wall thickness, and the chemicals inside all matter. When we make a custom design, we look at different welding techniques to find the best fit for your needs. Whether you need a custom 316L stainless steel vessel or a special Hastelloy reactor, DCI INC. uses ASME-certified procedures to make sure the welds work perfectly with the base metal.

Frequently Asked Questions

What is the most durable welding technique?

It often depends on the base metal and the intended application. INC. uses ASME-certified welding methods matched to each alloy to make sure the weld is as strong as the base metal.

How do post-weld treatments improve tank durability?

Treatments such as electropolishing and passivation remove iron and smooth the surface. This greatly lowers the risk of pitting and stress-corrosion cracking, bringing back the stainless steel’s natural resistance to corrosion.

What industries benefit from advanced welding techniques?

Industries such as biotech, pharmaceutical, food and dairy, and chemical processing depend on advanced welding for strong, high-purity stainless steel tanks. These fields need tanks that are easy to clean and built to last.

Get a Quote From DCI INC. Today

How long your equipment lasts depends on the skill used to build it. Every step, from the first weld to the final polish, is important for making a durable vessel. We use advanced welding and careful post-weld treatments to make sure your tanks can handle tough production demands. Work with our employee-owners on your next project. Whether you need custom agitators or large field fabrication, DCI INC. offers the expertise and quality your process needs. Contact us for a quote today.

Innovative Pressure Vessel Fabrication Materials

A processing system depends on the quality of its tanks and vessels. These containers are the first defense against contamination and failure, whether they hold sensitive pharmaceuticals or volatile chemicals. DCI INC. uses innovative pressure vessel fabrication materials. By choosing advanced alloys and using precise engineering, manufacturers make sure their equipment meets today’s tough industry standards. The material chosen affects how long the vessel lasts, how well it performs, and how well it keeps products pure under stress.

The Shift Toward High-Performance Materials

We believe that today’s pressure vessel fabricators need to have a wide understanding of the many high-performance materials available. Standard metals may struggle in the face of heavy cleaning agents, high temperatures, or high-pressure reactions. DCI INC. works with some specialized alloys that are known for their resistance to pitting, cracking, and corrosion.

From 316L Workhorses to Super-Austenitic AL-6XN®

Stainless steel is still the main material used for vessels, but the grade chosen matters for each job. General-purpose steels are fine for simple storage, but more complex processes need alloys with special chemical makeups to handle tough substances. Knowing the differences between these grades lets manufacturers match the vessel to the product it will hold. This kind of customization sets top pressure vessel fabricators apart.

316L Stainless Steel

A popular choice in the food, dairy, beverage, and pharmaceutical industries, 316L stainless steel is resistant to corrosion from organic acids and moderate chloride levels. Due to the low carbon content, this alloy maintains corrosion resistance at welded joints, and its ductility makes it great for complex shaping required for custom ASME-certified designs.

AL-6XN®

When processes involve high chloride concentrations or high temperatures that would compromise 316L, engineers turn to super-austenitic stainless steel like AL-6XN®. This material boasts high levels of nickel and molybdenum, which create a robust shield against chloride stress corrosion cracking and pitting. AL-6XN® is frequently utilized in the beverage industry for high-chloride products like sports drinks or soy sauce, as well as in sterile pharmaceutical environments where purity is non-negotiable.

Hastelloy®

In the harshest chemical environments, special nickel-molybdenum alloys like Hastelloy® are often the best choice. These materials stand up well to reducing conditions and resist acids like hydrochloric and sulfuric, which would quickly damage regular stainless steel. Their makeup also stops problems in the weld areas, so the vessel stays strong after it’s built. That’s why Hastelloy® is so important for chemical reactors and scrubbers that handle hazardous waste.

Inconel®

When extreme heat is a factor, Inconel® alloys offer the thermal stability and resistance to oxidation that’s needed. These nickel-chromium superalloys keep their strength at high temperatures that would cause other metals to bend or break. They work especially well in heat treating, chemical processing, and aerospace parts, where sudden temperature changes are common. Inconel®’s resistance to high-temperature corrosion makes it vital for pressure vessels where safety is key.

Is Metal Still the Standard for High-Pressure Applications?

You might have heard about composite materials. While these may be suitable for certain niche industries, they are no replacement for metals. Metals are proven to behave predictably under high-pressure, high-temperature applications, which is crucial to ensuring your equipment meets safety standards. Some of the reasons metals are still the top choice include:

• Corrosion Resistance: Advanced metals like AL-6XN® and Hastelloy® provide a chemical barrier that resists degradation from harsh acids and chlorides, preventing leaks and contamination.
• High-Temperature Tolerance: Unlike composites, which can degrade or delaminate when heated, nickel alloys and stainless steels retain their mechanical properties and structural rigidity even when exposed to extreme thermal cycles.
• Structural Strength: The inherent tensile strength of metal alloys allows for thinner wall constructions that still meet rigorous ASME codes, optimizing both weight and internal volume.
• Cleanability: Metal surfaces can be mechanically polished or electropolished to microscopic smoothness, eliminating crevices where bacteria can hide and ensuring the rigorous hygiene required for pharmaceutical use.

Electropolishing and Mechanical Polishing for Superior Durability

Choosing the right material is just the first step. The surface finish also affects how the material interacts with the product. DCI INC. uses advanced surface treatments to improve the alloy’s natural properties, achieving finishes as smooth as 10 Ra or less with in-house mechanical polishing and one of the largest electropolishing tanks in the country. Electropolishing removes material at the microscopic level, smoothing out tiny bumps that mechanical polishing can miss. This process not only gives a mirror-like look but also removes iron and other impurities, leaving a chromium-rich surface that resists corrosion.

Get a Quote From DCI INC. Today

Choosing the right alloy and finish takes a mix of chemical know-how, engineering skill, and careful manufacturing. The life of your processing line depends on making the right choices from the start. DCI INC. has decades of experience and manages every part of your project from start to finish without outsourcing. If your next project needs top safety and durability, contact us to see how advanced materials can improve your operation.

Important Maintenance Practices for Pressure Reactors

Pressure reactors are the backbone of many industrial operations, running nonstop in demanding environments. To keep your reactor working safely and efficiently, regular maintenance is a must. That’s why you need a solid maintenance routine. DCI INC. is explaining the right maintenance practices for pressure reactors. These maintenance tips can help you avoid costly downtime and get the most out of your high-pressure stainless steel reactor. When you know the basics of reactor maintenance, you can protect your investment and keep your business on track.

Regular Inspection and Cleaning

Regular inspections and cleaning are key to keeping your reactor in great shape. Over time, residue can build up inside, which can contaminate your batches or slow down heat transfer. By sticking to a set cleaning and inspection schedule, you can spot problems early and keep your system working its best.

Internal Surfaces and CIP Validation

Clean-In-Place (CIP) systems help keep reactors clean without taking them apart. However, it’s important to check that these systems remove all contaminants. We use riboflavin testing to make sure internal surfaces, even those polished to 10 Ra or less, don’t have hidden spots where bacteria can grow. This testing confirms that spray coverage is complete and your cleaning process works well.

Seals and PharmAssist® Solutions

Gaskets and mechanical seals are crucial for keeping pressure and stopping leaks. These parts go through a lot of stress and should be checked often for wear or damage. DCI INC.’s PharmAssist® Lift Assist solutions let you safely reach the inside of the vessel for maintenance, reducing the risk of injury or damage to seals. This tool makes inspections safer and easier, so checks can happen more often.

PharMix® Agitators

Agitators and mixers are at the heart of mixing, and their performance can make or break your product quality. By checking seals and impellers regularly, you help maintain proper heat transfer and avoid contamination. DCI INC. has replacement parts for the PharMix line, so you can keep your system running smoothly. Taking care of these parts also cuts down on vibration and wear, which helps your drive assembly last longer.

External Components

It’s easy to get tunnel vision on the internal components when you’re performing routine maintenance. Don’t forget to check the external components too. From external jackets to insulation, any damage should be identified, even if it’s on the outside of the vessel.

Monitoring Pressure, Temperature, and Sealing Systems

Monitoring key factors like pressure and temperature helps you keep track of your reactor’s condition. Watching these closely can reveal problems early, such as leaks, bad seals, or heating and cooling issues. Keeping pressure, temperature, and seals in good shape helps prevent failures, and DCI INC. makes sure these systems meet ASME standards. Modern control systems can track these factors in real time and alert you to changes before they become serious. This proactive monitoring lets you fix small issues before they turn into big problems.

Staying Ahead With DCI INC.’s Specialized Services

Even if you have a strong maintenance team, some tasks need outside experts. DCI INC. has a special Services division that handles everything from preventative maintenance and onsite fabrication to help with your maintenance needs. Working with experts gives you access to skills and tools you might not have in-house, making sure complex repairs and upgrades are done right. Some of our services include:

• Preventive Maintenance: Routine inspections and maintenance from a team of highly-trained professionals.
• Control Retrofits: Modernize your vessel’s control systems to meet current operational needs.
• Tank Upgrades: Modify existing vessels to meet updated ASME standards.
• Onsite Fabrication: Perform field repairs and modifications with our expert teams.
• ASME Weld Inspection: Ensure welds maintain their ASME Section VIII, Div. 1 integrity with full documentation and traceability.

Frequently Asked Questions

When should I inspect my pressure reactor?

Your inspection schedule will vary based on the material of your reactor, the chemicals involved in the process, and the frequency of operation. We generally recommend visual inspections before every run to look for clear signs of damage. Monthly, you should perform a more detailed examination of seals, gaskets, and safety devices. At least once a year, the vessel should be inspected for structural integrity and ASME compliance by a professional inspector.

What are the most common maintenance issues?

Failing seals, degrading gaskets, clogged internal lines, and worn agitator impellers are some of the most common problems with pressure reactors. Corrosion is another issue that you should always consider when your processes involve aggressive chemicals.

How do you ensure my reactor meets ASME standards?

At DCI INC., we take careful steps to ensure that your reactor meets ASME standards. Our quality control protocols and certified welders document all modifications and repairs. On top of that, we perform non-destructive testing (NDT) to ensure each vessel continues to meet ASME requirements.

Get a Quote From DCI INC. Today

Taking care of your equipment on a regular basis is the best way to get the most out of it. Sticking to a maintenance schedule and bringing in experts when needed keeps your staff safe and your processes running smoothly. When you work with DCI INC., you get access to a team that performs retrofits, inspections, custom designs, and more. Whether you’re looking to upgrade an existing vessel or start a new maintenance plan, our team is ready to help. Contact us today for more information or a quote.

Why Is Steel Tank Integrity Testing So Important?

Stainless steel tanks are essential in industries ranging from pharmaceuticals to dairy. When a tank fails, it can mean expensive downtime or even safety hazards. That’s why, DCI INC.’s steel tank integrity testing practices put quality assurance front and center from day one. Our testing standards are built to keep your operations running smoothly and your products safe. That way, you can count on every tank we deliver.

Ensuring the Right Materials Every Time

Using the right materials for a project is non-negotiable. At the outset of any project, we take careful steps to ensure that all materials match the precise specifications for your project. Our engineers can even provide recommendations for specialized alloys based on your application if steel isn’t the best option.

Mill Test Reports (MTRs)

Every piece of metal we use, whether it’s standard 316L stainless or a specialty alloy, comes with a Mill Test Report (MTR). We check these reports closely to make sure the steel’s properties match your order. This careful review is our first step in keeping low-quality materials out of your tank and making sure everything meets your project’s demands.

Full Traceability

We keep detailed records so every piece of metal can be traced back to its source. This documentation helps us meet ASME and industry standards. If a problem comes up in the future, we can quickly identify where each material was used. This traceability gives you confidence in the quality of your tank for years to come.

Material Certification

It’s important to do more than simply track materials. Our team certifies the steel grade and chemical makeup of all the materials we use in a project. This diligent certification process gives us absolute confidence in the materials we are using and the way they will perform under extreme conditions.

Building Strength With Certified Welds

Welding requires both skill and precision, but every weld must also be tested to make sure it is strong. We use several ASME-certified Non-Destructive Testing (NDT) methods to check the quality below the surface. Some of the testing methods we use include:

• Radiographic Testing (X-ray) allows us to see through the metal to identify internal weld integrity issues that are invisible to the naked eye.
• Liquid Dye Penetrant is used to highlight surface fissures and imperfections that could harbor bacteria or lead to cracks.
• Hydrostatic Testing verifies pressure safety and structural integrity by filling the vessel with water under pressure.
• ASME Compliance ensures that all our testing procedures meet the stringent requirements of Section VIII, Div. 1.

ASME Hydrostatic and Pneumatic Testing

Pressure vessels are essentially potential bombs if not constructed correctly, so we take steel tank pressure testing incredibly seriously. DCI INC. performs hydrostatic testing at pressures that exceed the Maximum Allowable Working Pressure (MAWP) to certify structural integrity beyond normal operating conditions. Our ASME U, R, and UM stamps are not just badges. They are proof that our vessels have withstood rigorous scrutiny and are safe for operation. This critical step ensures that your personnel and facility are safe from the dangers of pressurized equipment failure.

Ensuring Sanitary Standards for Every Vessel

For clients in industries such as food and dairy, tanks need to be easy to clean and durable. We use Riboflavin testing to check that cleaning solutions reach all areas inside the tank. Our processes make sure there are no missed spots and have the ability to polish to 10 Ra or less. This focus on hygiene helps prevent microbial growth and cross-contamination, which is essential for product safety.

Final Documentation and Certification

We complete every project with thorough documentation. Our final package includes weld logs, finisher logs, MTRs, and ASME compliance certificates. This paperwork is important for USDA/FDA audits, insurance, and future maintenance. It gives you a full record of your tank and shows that all standards and tests were met.

Frequently Asked Questions

What is the purpose of riboflavin testing?

Riboflavin testing uses a fluorescent solution to check if a tank’s interior can be cleaned properly. DCI INC. coats the inside with riboflavin (vitamin B2), runs a cleaning cycle, and then inspects with ultraviolet light. Any glowing spots show where cleaning missed, so we can adjust the spray pattern. This makes sure your Clean-in-Place (CIP) systems work effectively.

How does hydrostatic testing increase safety?

Hydrostatic testing involves filling the tank with water and pressurizing it to a level higher than its designed operating pressure. This stress test confirms that the vessel can handle the load without leaking or permanently deforming. It is the definitive stainless steel test for structural integrity, ensuring the tank is safe to operate under its rated conditions. Without this test, there would be no verified proof that the vessel can withstand the forces it will encounter in daily operation.

What documentation does DCI INC. provide?

With each completed vessel, we give you a complete turnover package as a permanent record for your tank. It includes Mill Test Reports (MTRs), weld logs, finisher logs, and ASME compliance certificates. This documentation is important for audits, insurance, and future maintenance. It keeps all your tank’s key information in one place.

Get a Quote From DCI INC. Today

Choosing DCI INC. means having a partner who puts quality and safety first. Our thorough material checks and certified testing make sure your tank meets the highest standards. Reach out to us today to talk about your project or get a quote. We’re here to help you see the difference that quality can make for your business.

DCI INC.’s Stainless Steel Tank Maintenance Tips

Running a lab or processing facility means you need to stay alert, since your equipment’s reliability affects your entire timeline. If a vessel fails, it’s more than just a maintenance issue. It can cause expensive downtime. Protecting your tanks takes more than occasional inspections, especially in sensitive industries like pharmaceuticals or food processing. Here are DCI INC.’s top tips for stainless steel tank maintenance. With a proactive approach, you can safeguard your investment and keep your product quality high for years to come.

Understanding Key Factors That Impact Tank Longevity

How long your equipment lasts depends on how it handles its environment. Stainless steel tanks are known for being tough, but daily use, chemicals, and temperature changes can still wear them down. That’s why DCI INC. uses only high-quality metal for every tank and vessel. Still, even the best tanks need you to watch for things like humidity and salt in the air, since these can speed up corrosion if ignored.

Keeping Your Tank in Prime Condition

Regular cleaning is your best defense against both tank damage and product contamination. Sticking to a cleaning schedule stops biofilms and mineral deposits from building up, which can cause pitting corrosion. If you skip these steps, your tank’s structure could weaken before you even see any damage. Make sure your routine covers both the inside surfaces that touch your product and the outside of the tank to keep everything in good shape.

Internal Surface Maintenance and CIP Validation

Keeping the inside of your tank clean is essential, especially in industries where sanitation matters most. Your Clean-In-Place (CIP) system should be set up to reach every part of the vessel. DCI INC. uses riboflavin testing to make sure all internal surfaces, even those polished to 10 Ra or less, are free from residue and hidden spots where microbes could grow. This test uses a UV-reactive vitamin solution to show if your spray balls and cleaning cycles cover the entire inside of the tank.

External Surface Maintenance

The inside of your tank holds your product, but the outside deals with tough plant conditions. The exterior often gets washed down, bumped, or exposed to moisture, which can cause corrosion under the insulation. Check the outside cladding and insulation regularly for any holes or gaps. Keeping the outside clean and dry is key to stopping hidden corrosion from damaging your tank.

Cleaning Agents

Using the wrong cleaning chemicals can damage the protective layer that keeps stainless steel from rusting. Avoid chlorine-based cleaners, since chlorides are especially harmful to stainless steel and can cause stress corrosion cracking. Always check with your chemical supplier and the DCI INC. engineering team to make sure your cleaning agents match the type of steel in your tank. The right concentration and temperature will keep things clean without shortening your tank’s life.

Temperature Control and Jacket Maintenance

Thermal stress can quietly damage your tanks, often due to quick temperature changes or poor heat transfer. Keeping tight control over temperature helps prevent the material from cracking or warping. Your maintenance plan should always include checking your heating and cooling systems. If you notice temperature changes, it could mean there’s a problem with your utility fluid flow or the heat transfer surface.

Keeping PharMix® Agitators Running Smoothly

Agitation systems are the core of your mixing process and wear out faster than parts that don’t move. It’s important to maintain DCI INC.’s PharMix® agitators on the recommended schedule to avoid major failures. If a bearing seizes or a seal leaks, contaminants can get into your batch, ruining the product and causing big cleanups. Listening for unusual sounds and checking for vibrations can help you spot problems early.

Staying Ahead With DCI INC. Expertise

Preventive maintenance helps you avoid emergency breakdowns and unplanned downtime. Waiting until something fails is risky and often leads to lost revenue and costly, rushed repairs. Our team has decades of experience and can provide tank maintenance solutions that fit your production needs. Some of the services we offer include:

• Preventive Maintenance: Extend the life of your equipment with scheduled care designed to catch minor issues before they become major failures.
• Control Retrofits: Upgrade your systems to improve process efficiency, integrating modern automation into your existing vessel infrastructure.
• Onsite Repairs: Address issues quickly with DCI INC.’s expert field service team, who can perform code-compliant repairs right at your site.
• Documentation Support: Maintain compliance with detailed records and certifications that satisfy regulatory audits and internal quality standards.

Frequently Asked Questions

How does riboflavin testing improve cleanability?

Riboflavin testing involves spraying the interior of a tank with a solution containing Vitamin B2 (riboflavin), which glows under ultraviolet light. After a rinse cycle is performed using the tank’s CIP system, a technician inspects the interior with a UV lamp. Any remaining glowing areas indicate “shadows” or spots the cleaning spray missed. This confirms whether the spray ball positioning and flow rates are adequate to fully sanitize the vessel.

What is the best way to maintain PharMix® agitator systems?

The most effective way to maintain PharMix® agitators is to adhere to a strict schedule of lubricating bearings and inspecting mechanical seals for leaks. You should also check the impeller for any signs of physical damage or erosion, which can unbalance the shaft. Always replace worn components with genuine DCI INC. parts to ensure the sanitary seal remains intact and the equipment operates within its specified design parameters.

How often do I need an ASME-certified weld inspection?

The frequency of ASME-certified inspections depends on the specific service conditions, the contents of the vessel, and local jurisdictional requirements. However, a general rule of thumb for industrial tank maintenance is to perform a visual external inspection annually and a more thorough internal or non-destructive examination (NDE) every three to five years. High-corrosion environments or cyclic pressure applications may dictate a more frequent inspection schedule to ensure continued safety.

Get a Quote From DCI INC. Today

Your processing equipment is the backbone of your business, and keeping it running smoothly takes a reliable partner. By following these stainless steel tank maintenance tips, you help keep your operations safe, compliant, and efficient. Reach out to us today to talk about your maintenance needs or get a quote for our field services.

DCI, Inc. Appoints New National Account Managers for Life Science Division

St. Cloud, MN — January 19, 2026 — DCI, Inc., a premier U.S. manufacturer of stainless-steel tanks and vessels, fermenters, bioreactors, agitators, and turnkey skidded systems, is pleased to announce the addition of Joe Abitz and Brad Stasny as National Account Managers for the Life Science division.

These strategic hires reinforce DCI’s commitment to building long-term customer partnerships and advancing its position as an end-to-end process system solutions provider.

“As our business continues to grow, we’re investing in people who strengthen our customer relationships and drive long-term success,” said Rolf Manser, Vice President of Sales. “Both Joe and Brad bring deep experience and industry knowledge that align perfectly with DCI’s customer first approach.”

“This expansion reflects our long-term strategy to strengthen DCI’s presence in the life science market and to deliver high-value, end-to-end process system solutions that support the evolving needs of our customers.” added Dan Larsen, President.

Joe Abitz brings more than 15 years of experience in capital equipment and process solutions sales for the life science, food, dairy, and beverage industries. He has a proven ability to deliver fully integrated systems, including vessels, process skids, CIP systems, and automation, by partnering with engineering, R&D, and procurement teams to provide compliant, end-to-end solutions. Joe is known for his technical expertise and consultative approach in managing complex projects within regulated, cGMP environments.

Brad Stasny brings more than 20 years of experience in bioprocess and capital equipment sales within the life science industries. He has deep expertise in bioprocessing equipment, including system installation, start-up, and operations, as well as navigating cGMP validation requirements and conducting detailed technical reviews. Brad is known for his ability to support complex projects and apply technical insight to advance long-term customer partnerships.

Together, their expertise further strengthens DCI’s ability to support our life science customers with reliable, compliant, and end-to-end process system solutions.

 About DCI, Inc.

DCI is a trusted partner in engineered stainless steel solutions, known for their expertise in custom tanks, vessels, and integrated process systems. With over 70 years of legacy, the company continues to evolve its brand to reflect its mission as a complete systems provider. DCI helps customers transform complex processes into efficient, scalable operations across industries such as biotech, food and beverage, and industrial. Backed by unmatched craftsmanship, technical depth, and a customer-first mindset, DCI is built for what’s now and what’s next.

Expanding Bioreactor Control, Batch Automation, and Complete Process Solutions

St. Cloud, MN • October 1, 2025 — DCI, Inc., a premier U.S. manufacturer of stainless steel tanks, fermenters, bioreactors, agitators, and integrated processing systems, has acquired ILS Automation, a leading provider of fermentation and bioreactor control systems.

For more than two decades, ILS Automation has been recognized for its Batch Expert+ software platform and AFC Series controllers, trusted across bench-scale and pilot-scale bioreactor and fermentation systems. In addition, ILS delivers scalable control solutions for microbial and cell culture applications, drawing on strong expertise in process automation and batch software design across life science industries.

“This acquisition aligns with DCI’s vision to be the supplier of choice for innovative process solutions” said Dan Larsen, DCI President.  By integrating ILS’s proven control technologies with DCI’s core strengths in engineered tanks, automation, and process systems, the company is enhancing its ability to deliver end-to-end solutions and create greater value for customers and stakeholders.

“Furthermore, by combining ILS’s Batch Expert+ platform together with DCI’s process skid and bioreactor design capabilities, we can provide innovative, fully integrated solutions that support customers from lab scale through production” said Doug Myers, Ph.D., Principal Engineer.

Expanded Automation Capabilities

• Advanced Control Systems (AFC Series): ILS Automation brings the AFC controller line, including the AFC 900 Series dual bioreactor units and AFC 2000/3000 controllers. These are designed as “drop-in” replacements for benchtop and larger-scale reactors. As a result, customers gain customizable, industrial-grade controllers support digital probes, smart instrumentation, and long-term serviceability with customer-accessible documentation and source code.
• Batch Expert+ SCADA Software Platform: BE+ is a modern, web-based SCADA system that provides real-time control, intelligent alarms, SQL-based data historians, interactive trend charts, recipe management aligned with ISA S88 standards, remote monitoring, and optional 21 CFR Part 11 compliance. It supports unlimited bioreactors, integrates with legacy controllers, and offers batch-age charting for deeper process insights.
• Open Architecture and IoT Compatibility: ILS emphasizes open, non-proprietary hardware and software built on commercial components. Its IoT-ready approach integrates digital gas flow controllers, smart probes (such as pH, optical DO, and capacitance-based cell density sensors), and precision scales. This ensures richer data acquisition and flexible automation options.
• Expert Support and Customization: ILS offers direct technical support, including remote assistance via VPN, performance tuning, and continuous upgrades for both software and hardware. Systems are fully customizable to meet evolving process development needs.

Welcoming the ILS Team

DCI is pleased to welcome Doug Myers, Jeffrey DeCicco, Peter Hassler, and Scott Freedman to the DCI family as part of this acquisition. Together their expertise in control system design, software development, and customer support will strengthen DCI’s expanding automation division.

About DCI, Inc.

DCI is a trusted partner in engineered stainless steel solutions, known for their expertise in custom tanks, vessels, and integrated process systems. With more than 70 years of legacy, the company continues to evolve its brand to reflect its mission as a complete systems provider. DCI helps customers transform complex processes into efficient, scalable operations across industries such as biotech, food and beverage, and industrial. Backed by unmatched craftsmanship, technical depth, and a customer-first mindset, DCI is built for what’s now and what’s next.

About ILS Automation

Founded in 2001 with a manufacturing site in Downers Grove, IL, ILS Automation provides bioreactor control solutions including AFC controllers and the Batch Expert+ SCADA software platform. ILS supports research and process development across life science industries. The company specializes in integrating digital instrumentation, intelligent control loops, data visualization, and recipe-based batch management, with a focus on open architecture and transparent customer support.  For more information, visit www.ils-automation.com

Media Contacts

DCI, Inc.
Lindsay Winter, Corporate Marketing Manager
ldwinter@dciinc.com | (320) 252‑8200

We are writing to share important news about an exciting leadership transition at DCI, Inc., as part of our ongoing commitment to growth and innovation.

Effective December 2, 2024, our current Chief Executive Officer, Jeff Keller, will continue in his role while also mentoring Dan Larsen, who will join DCI as our new President. Jeff will remain actively involved in the business until April 30, 2025.

Jeff has been a cornerstone of DCI since 1994, serving as CEO & President since 2006. During his tenure, Jeff’s vision and leadership have driven our business to new heights. Jeff’s dedication and contributions have been instrumental in DCI’s success, and we are deeply grateful for his leadership.

Dan Larsen brings over 22 years of leadership experience, including roles at Donaldson Company, Inc., and as President of Hengst Filtration, North America. With a strong background in strategic growth, organizational development, and global market leadership, Dan is well-positioned to continue DCI’s tradition of excellence.

Dan’s collaborative approach and customer-focused mindset will be valuable as we work together to grow and strengthen our partnerships.

This transition marks an exciting new chapter for DCI, Inc. With Jeff’s continued guidance and Dan’s fresh perspective, we are confident in our ability to innovate and serve you even better in the years ahead.

We appreciate your trust and support as we move forward together. Thank you for being a valued partner in DCI’s journey.