Author Archives: Compressed Air Systems

  1. Oil-free Air Compressors

    Comments Off on Oil-free Air Compressors

    What is an Oil-Free Compressor?

    When selecting an air compressor, it can be difficult to determine which type of compressor will be best for your application. While many factors play into this decision, users must ultimately decide whether an oil-lubricated or oil-free air compressor is the appropriate solution for their specific need. 

    In the oil vs. oil-less air compressor debate, many companies are beginning to recognize the benefits of using oil-free compressor models over their standard oil-lubricated air compressor counterparts. 

    Oil-Free Air Compressor Advantages

    Oil-free air compressors offer a number of advantages over oil-lubricated models. Without standard oil usage, oil-free compressors provide significant cost-savings on filter costs and used oil disposal. While the gearbox takes a long-term lubrication solution, oil-free compressors eliminate the need for oil changes or fills during maintenance cycles. Additionally, because the oil-free compressors do not require increased force, they reduce related energy costs. 

    Even with these differences, oil-free compressors don’t sacrifice efficiency and can typically unload within two seconds at about 18% full load horsepower. 

    How Oil-Free Air Compressors Work

    Oil-less air compressors work a little differently than oil-lubricated compressors, as they don’t require a lubricant to cool air. Instead, they go through a six-step process to compress and cool the air, as follows:

    1. Intake
      Oil-free air compressors draw in air from the outside via an unloader valve. The air then passes through one or more filters to filter out any particulates, such as dust or dirt. 
    1. Initial Compression
      Once the air is drawn in through the unloader valve, it passes into a chamber where oil-free elements compress the air while keeping it free from lubrication contamination. 
    1. Initial Cooling
      The air is cooled for the first time at this stage to avoid unnecessary heat damage to internal compressor components. In pumps operating with two stages, air may also be compressed at a much higher PSI. Intercoolers also come equipped with filters to remove any condensation that rises from the cooling process.
    1. Second Compression
      Once cooled, the air returns to the main chamber, where it experiences a high-pressure compression process.
    1. Second Cooling
       Once fully compressed, the air passes through an aftercooling stage. This stage further cools the air into a form in which it can be properly stored.
    1. Automatic Detection
      Oil-free air compressors offer an automatic refill technology. Sensors monitor the level of air within the storage tank, and the compressor will turn on and begin the process of refilling the tank with pressurized air once the stored air reaches a pre-set level. 


    Oil-Free: The Right Choice for Dentists

    Dental offices are a prime example of an application that has greatly benefited from the use of oil-free air compressors. While some dentists fear that an oil-free compressor will be too loud for use in an office, noise suppressors can be fitted to the filters to cut down on the noise generated by the compressor. Oil-free air compressors also tend to be lighter and smaller, so they are better suited for use in small spaces, such as a patient area. 

    Some oil-free compressors can generate the same pressure and airflow as their oil-lubricated counterparts, and it’s important for dentists to choose the correct model. However, oil-free compressors are chosen in many medical applications for one primary reason—they drastically reduce the risk of lubricants contaminating the air supply. 

    Contaminated air can be extremely harmful to patients, so the benefits of oil-free models in this type of work cannot be understated. 

    Common Applications for Oil-Free Air Compressors

    Of course, dentists aren’t the only professionals seeing benefits from oil-less air compressors. These compressors have also been shown to benefit a wide range of other applications, in industries such as:

    • Automotive
      Workers in automotive applications will benefit from reduced exposure to oil-contaminated air. In addition, oil-free compressors have been proven to provide high-quality finished paint jobs, and the less frequent maintenance cycle of an oil-free compressor ensures that processes run smoothly.
    • Chemical
      In chemical manufacturing and processing, product purity is an utmost priority, so using a purer supply of air is ideal. Oil-free compressors are also safer, since there is less risk of lubrication contamination reacting badly with other chemicals. With no need for oil changes or fills, there’s also less waste involved.
    • Electronics
      Electronics manufacturing often requires extremely sanitary conditions to ensure that products are fabricated contaminant-free and of the highest quality. The uncontaminated compressed air from oil-free compressors contribute to the ultra-clean conditions required by these processes.
    • Food & Beverage
      Air contaminated even slightly by lubricants can affect the end quality and flavor of food and beverages. In food and beverage manufacturing, oil-free compressors contribute to a healthier, cleaner final product.
    • Oil & Gas
      Oil-free compressors only require monthly maintenance to check parts for wear and don’t need oil changes or top offs, which contributes to error-free control systems and processes. The cleaner air provided by oil-less air compressors also contributes to increased safety and better quality final product in these applications.
    • Pharmaceuticals
      One of the most sensitive manufacturing processes, pharmaceutical relies on high-quality cleanroom conditions to guarantee the health and safety of its patients. Oil-free compressors contribute to pure production, reduced contamination risk, decreased waste, and more efficient overall processes. 
    • Textiles
      Efficiency is a key factor in textile production, so the reduced maintenance and repair costs associated with oil-free compressors have been a boon for this industry. Oil-free compressors also contribute to higher textile quality and reduced wastage. 


    Learn More

    In business since 1963, Compressed Air Systems offers a wide range of air compressors, vacuum systems, and blowers. We also run our own installation, service, and rental departments. Backed by 55 years of industry experience, our team can help you address any compressed air challenge you may face.

    To learn more, check out our Benefits of Proper Air Maintenance Compressor Guide to see how you can improve the compressed air efficiency in your operation.

  2. Top Tips for Energy-Saving Air Compressor Maintenance

    Comments Off on Top Tips for Energy-Saving Air Compressor Maintenance

    Globally, the air compressor market is quickly growing due to the versatility and cost-effectiveness of air compressor units. Between 2020 and 2028, the market is expected to grow at a rate (CAGR) of 3.4% annually. However, despite the wide adoption of air compressors, many businesses don’t prioritize air compressor maintenance, resulting in increased expenses due to costly repairs or replacements and the associated downtime. Air compressor maintenance offers you many benefits, such as time savings, safety enhancements, and reduced production costs due to less energy consumption. See our guide to inline clean air treatment here.

    Top 5 Energy Saving Tips

    Energy SavingRegardless of your specific industry or application, a well-maintained air compressor plays a vital part in reducing energy consumption. Here are five top tips you can implement to increase the energy savings from your air compressor: 

    Cost Saving Advice: Hoses, Fittings, and Waste

    Check your fittings regularly, ensuring they create a tight seal. Loose fittings are a significant cause of leaks in air compressor units. If the fittings seem corroded or worn out, you should repair or replace them immediately. Consider inspecting hoses since they act as the system’s key connection points, and any damage to the hose could disrupt the entire system. Hoses usually get damaged during cold weather or bent, resulting in corrosion or cracks. Additionally, drain your unit’s receiver tank to avoid suboptimal operation due to a lack of storage capacity. 

    Apply Proper Controls to Multiple Compressor Units

    Click to Expand

    Top Tips for Energy Saving Air Compressor Maintenance

    Proper controls maintain steady system pressure and ensure that only the required compressor units are brought online. This eliminates the inappropriate use of compressed air and ensures each unit is operating at peak efficiency. The controls are also helpful in turning off compressor units that are not needed or not being used.

    Ensure Piping & Storage are Properly Sized

    The problem with most systems is the lack of adequate storage and piping. When sizing piping, it should optimize the transfer of compressed air at the desired flow and pressure to the point of use. Having wider piping from two to three inches can minimize the pressure to around 50%. On the other hand, reducing the distance traveled by air can lower pressure by about 30%-40%. Having the wrong storage size can result in issues with production or increased costs due to wasted energy. 

    Change Your Air Filters Regularly

    Air filters should be inspected monthly and replaced regularly. Drops in pressure as little as two psi can cost about 1% in compressor horsepower efficiency. Regular inspection and replacement maintain air quality and reduce the chance of pressure dropping. There are several point-of-use and air-line filters in a typical system, which should also be maintained regularly.  

    Reduce the Operating Pressure to the Lowest Possible Setting

    A common rule for most compressors indicates that every 2-psi reduction in system operating pressure can result in 1% in compressor energy-saving efficiency. Continuously adjust the pressure setting to reach the lowest possible setting without compromising performance. Additionally, centralized systems using multiple compressors can be set to run using a central controller. Turning down the pressure on your compressor even 10 PSIG is a 5% savings in electrical costs.

    Contact Compressed Air Systems for More Advice

    Maintaining your air compressor is essential to ensure daily operations and equipment continue running without interruption. At Compressed Air Systems, we are proudly celebrating nearly 60 years of delivering superior equipment design and engineering, custom turnkey installations, compressed air leak detection and elimination, air compressor rentals and services, and more. We have partnered with Kaeser to create a long and productive business partnership as a proud supplier of Kaeser air compressors. Get in touch with us today for more information about our services.

  3. What Class of Air Do You Need for Your Application?

    Comments Off on What Class of Air Do You Need for Your Application?


    Different applications require different compressed air quality levels to deliver optimal safety and efficiency. The International Organization for Standardization (ISO) maintains a set of guidelines called ISO 8573 that define the classes of compressed air quality based on specific testing criteria. Any application that requires compressed air should abide by the ISO 8573 standards to ensure that the air quality meets industry standards and provides the expected results.

    ISO Air Quality Classes

    The ISO classifies compressed air quality under ISO 8573 and provides standard criteria for testing air contaminants, including solid particles, oil, and water. While the ISO does not classify gasses and other pollutants like microbiological contaminants and volatile organic compounds, it does include methods for measuring such pollutants. The ISO standards are periodically updated to keep up with fast-changing industries, and its most recent update was ISO 8573:21:2010.

    Click to Expand

    What Class of Air Do You Need For Your Application

    The ISO classifications help different industries classify the air requirements of their facilities and allow users to work to achieve the appropriate compressed air levels for their needs. The ISO provides the following test standards:

    • ISO 8573-1: Classes of purity and contaminants
    • ISO 8573-2: Testing for oil aerosol
    • ISO 8573-3: Testing for humidity
    • ISO 8573-4: Testing for solid particles
    • ISO 8573-5: Testing for oil vapor
    • ISO 8573-6: Testing for gas
    • ISO 8573-7: Testing for viable microbiological content
    • ISO 8573-8: Testing for solid particles with mass concentration
    • ISO 8573-9: Testing for liquid water

    Reading the ISO Classes Chart

    ISO 8573 defines several air purity classes identified by three-digits, such as 1.1.1, 1.2.1, or -.8.-. The digits are read from left to right, with the first digit representing solids particles, the second water, and the third oil. A low number marks air with few contaminants, while a high number will mark highly-polluted air.

    Air with an ISO classification of 1.1.1 or 1.2.1 has low levels of contamination. Sensitive applications like pharmaceutical and chemical processing depend on air with very low contaminant levels. A rating of -.8.- has no solid particulate or oil contaminants but contains higher levels of water particulates. Air with this quality rating may still be acceptable for applications such as low-grade shop air.

    Solutions From Compressed Air Systems

    Compressed Air Systems Installation Guide

    Compressed Air Systems has the solution if you are trying to find the class of air that meets ISO 8573 standards for your application. Our team of air system specialists understands that every application requires a unique air system solution to provide the ideal class of air. We deliver air systems for a variety of commercial and industrial applications. Speak with our specialists to determine the ideal filter for your industry or application.

    Download our Compressed Air Systems Installation Guide! We explain the reasons why correct installation is critical, as well as factors to consider.

    Rely On Compressed Air Systems To Meet ISO 8573 Standards

    Determining the ISO 8573 standard class of air for your application is critical to achieving the safety and performance you need. If you are not sure which ISO 8573 class of air is required for your application or need help achieving air quality that meets ISO standards, the team at Compressed Air Systems can help. Compressed Air Systems has been delivering high-quality compressed air, vacuum, and blower system solutions since 1963. From our 30,000 sq. ft. Tampa, FL facility, we offer sales, in-house services, rentals, and installation.

    Compressed Air Systems provides a complete solution whether you are purchasing a new air system for installation or have an old air system that requires professional diagnosis and repair. We also sell and rent a variety of pneumatic equipment tools. Contact us to learn more about our products and capabilities.

  4. Blower and Vacuum Applications

    Comments Off on Blower and Vacuum Applications

    High-volume blowers and vacuum pumps are vital for moving air in industrial settings. Choosing the right compressed air blowers and vacuum pumps can benefit any pneumatic system and save your business money. Learn more about blowers and vacuum pumps, common applications, and products from Compressed Air Systems that can serve you.

    About Blower and Vacuum Pumpshigh-volume-blower

    Many manufacturing plants require compressed air blowers and vacuum pumps for basic operations. At Compressed Air Systems, we can provide precision compressor solutions that fit your facility’s needs. We work with trusted manufacturers like Kaeser Compressors to provide reliable, high-quality products, components, and assemblies for commercial and industrial facilities. 

    Our selection of standard and custom products includes:

    • Positive displacement blowers: These blowers can deliver a constant high volume of gas through their outlet port.
    • Radial vacuum pumps: These pumps can deliver controlled volumes of air (typically at high volumes) when systems require air at small differential pressure levels. They can precisely remove air and gas from a fixed area, such as to clean or seal containers.
    • Rotary claw pumps: Using positive displacement, the non-contacting claws in this system rotate to pull air in and pump it out at controlled volumes and pressure differentials.
    • Rotary lobe blowers: These blowers use centrifugal force to deliver pressurized air with as little vibration as possible. 
    • Rotary screw: Rotary screw compressors use positive displacement to compress air between two rotors and reduce the size of the chamber. The rotary screws pressurize the gas to the desired level and power pneumatic operations.
    • Rotary vane pump: A rotary vane pump uses positive displacement to rotate air within a cavity and pull air from a given area.

    Blower and Vacuum Pump Applications

    Our blowers and vacuum pump systems can remove or supply gases in different volumes, pressures, and directions. Some of the most common applications for blowers and vacuum pumps are:

    • Air supply for aeration or pneumatic conveying
    • Bottle filling
    • Critical instrument air supply
    • Cutters
    • Dairy processing and milking
    • Dryers
    • Evacuation
    • Evisceration
    • Filling and closing machines
    • Filtration
    • Humidification
    • Manufacturing plant vacuums
    • Modified atmosphere packaging (MAP)
    • Packaging
    • Preserving cooked food
    • Process gas stream
    • Sterilization

    Working With Compressed Air Systems

    Because high-volume blowers and vacuum pumps come in many varieties, it can be challenging to know which one is the best fit for your application. At Compressed Air Systems, our team of experts can help you determine the right systems for your industrial or commercial operation. Contact us today to learn more about our products and services.

  5. Compressed Air Applications

    Comments Off on Compressed Air Applications

    Air compressor systems are popular installations that can handle a wide variety of packaging, pumping, and material handling tasks. Compressed air is a reliable medium for transferring power to control equipment throughout manufacturing and non-manufacturing processes. Learn more about the applications of compressed air systems and how Compressed Air Systems, Inc. can help you build, rebuild, or optimize your system.

    Compressed Air Systems

    Compressed air systems give facilities access to pressurized air. These systems include a motor-powered mechanical device that compresses input air to a set pressure level for use in a variety of applications. In industrial compressed air systems, the compressed air passes out of the motorized unit into pipes throughout the plant. Depending on the applications and unique needs of the facility, the air system may also include a drying component that removes humidity from the air before it’s distributed.

    Compressed Air Applications

    Compressed air is used extensively throughout commercial and industrial processes. However, it is also vital in applications beyond manufacturing. Common industries that rely on compressed air include:

    • Agriculture. Compressed air is used for pneumatic tools, vacuum packing equipment, and conveying equipment, as well as general farming equipment.
    • Construction. Compressed air provides power for pneumatic tools and equipment on active construction sites.
    • Food and beverage. This industry uses compressed air for bottling and packing processes that preserve goods, conveying and product handling processes, and fluid pump systems.
    • Mining. The mining industry relies on compressed air to power drilling tools and provide processing power for filtering and separating applications. 
    • Recreation. Amusement park rides and ski lifts use air-powered brakes, and hotels and other large-scale facilities use compressed air to control elevators. Other recreation-related applications include cleaning sensitive equipment, efficient sewage disposal, sprinklers for landscaping, and more. 
    • Service industries. The service industry includes a wide range of services such as dry cleaners, hospitals, and more. These facilities use compressed air for climate control and laundry machines. Hospitals also use air compressing systems to control respiration systems for patients.

    Key applications for compressed air include:

    • Air knives
    • Bottle filling
    • Fluid pumps
    • Food filling machines
    • Nitrogen generation
    • Packaging
    • PET bottle blowing
    • Product handling
    • And more

    Working With Compressed Air Systems

    No matter what processes you use compressed air for, it’s important to invest in a system you can rely on. At Compressed Air Systems (CAS), we’re the leading provider of reliable compressed air systems. We specialize in creating custom solutions for facilities across multiple different industries. Our services include:

    • Compressed air audits and leak detection
    • Compressed air leak elimination
    • Equipment and system rentals
    • Rotary screw rebuilds for motorized compression units
    • Turnkey design, development, and builds for compressed air systems

    We serve clients throughout the following industries:

    • Manufacturing and Industrial
    • Medical
    • Aerospace
    • Electronics
    • Fleet Maintenance
    • Plastics
    • Food and Beverage Processing

    For specialized air compression systems that interact with consumable goods such as pharmaceuticals, beverages, and food, we build our systems to comply with the FDA’s Food Safety Modernization Act (FSMA).

    To learn more about the applications of compressed air, or for more information about our capabilities, contact us today.

  6. How to Size an Air Receiver Tank

    Comments Off on How to Size an Air Receiver Tank

    Air receiver tanks are a vital part of all compressed air systems. They help balance the supply of air from the compressor with the demand from the system by acting as a reservoir during peak times. Additionally, they can remove water from the compressed air system and minimize system pulsations. 

    Achieving the maximum benefits from an air receiver tank necessitates choosing one that is properly sized for the compressed air system. In most cases, a receiver tank is sized at 2 gal/scfm. However, if big surges in demand are expected, the size is increased to between 4 and 10 gal/scfm. The following article goes into further detail about what an air receiver tank is, why it is important, and how to properly size one for a compressed air system. 

    What Are Air Receiver Tanks?

    Air receiver tanks—also referred to as compressed air tanks—are engineered to temporarily store compressed air before it enters equipment or a piping system. They help connected compressed air systems operate efficiently during operations by acting as a buffer between the compressor and fluctuating buffer. Additionally, they can be used to supply additional air to the system to accommodate surges in demand and/or run the system even when the compressor is not running.  

    Compressed air systems use two types of air receiver tanks: primary and secondary. Primary tanks are located close to the air compressor system and act as air storage devices. Secondary tanks are located further from the compressor system while still being accessible to any device that requires air. 

    Why Are Receiver Tanks Important in Compressed Air Systems?

    While it is technically possible for a compressed air system to function without a receiver tank, there are several reasons why they are a vital component of highly effective systems. First, they serve as reservoirs that supplement compressed air supply during peak demand. Second, they remove water that might be present in a compressor system by cooling the air. Third, they decrease the amount of pulsations experienced by the system.

    Some of the key factors to consider when choosing a receiver tank for a compressed air system are: 

      • Size. An air receiver tank should be sized between 6–10 times the flow rate of the system. For example, compressors with a rating of 25 scfm at 100 psi should have a tank that is size at a minimum of 150 cubic feet. 
      • Working pressure. Air receiver tanks must be fitted with a pressure relief valve and pressure gauge. The former should be set to 10% above the working pressure of the compressed air system.   
    • Drainage/drying elements. A drain enables the receiver tank to expel water from the system. It can be manual or automatic. The inclusion of an air dryer and coalescing filter can further help improve the dryness of the compressed air. 

    How to Properly Size an Air Receiver Tank

    Air Receiver Tanks from Compressed Air SystemsAir receiver tanks are sized in terms of volume (measured in gallons). They are available in sizes ranging from 5-gallon capacities to several thousand gallon capacities. It is important to choose the size based on the needs of the application. Key considerations to keep in mind include: 

    • Capacity: How much air can the air receiver store? It should be greater than the amount of air required for the application. 
    • Pressure: What compressor discharge pressure is required? What end-use pressure is required? The greater the difference between the two values, the smaller the receiver needed.
    • Time: How much time (in minutes) does the tank take to supply the amount of air required without a significant drop in pressure? 
    • Air requirement: How much air does the end-user require to operate at optimal capacity?

    In addition to these factors, sizing a receiver tank can vary depending on the compressor design. 

    Sizing a Receiver Tank for Reciprocating Air Compressors

    Reciprocating air compressors rely on a receiver tank to store compressed air and eliminate pulsation before it is used for operations. When the tank is filled with enough compressed air, the connected device can be operated. Using the device drains the tank, so users will need to wait for it to fill back up if it is emptied before the device can be used again. Correctly sizing the air receiver tank to the compressor helps minimize interruptions by eliminating the risk of it emptying before the task is done. 

    Sizing an Air Receiver Tank for Stationary Air Compressors

    Custom stationary air compressors utilize air receiver tanks that are more complex to size correctly. As a result, sizing should generally be performed by a qualified engineer. Factors influencing tank sizing include volume and pressure variations in demand, air compressor size, pipe/hose size and length, and control system. 

    Contact the Experts at Compressed Air Systems for Tank Sizing Help Today

    Need help determining the right air receiver tank size for your system? Ask the experts at Compressed Air Systems! We offer high-quality air receiver tanks for various compressed air system needs. Our engineers can help you evaluate your system requirements and restrictions to identify the best tank solution.

  7. The Importance of Having a Backup Compressed Air System

    Comments Off on The Importance of Having a Backup Compressed Air System

    For companies that rely on compressed air to do business, it’s essential to have a backup compressed air system in place. If your primary system goes down, you’reCompressed air system in a facilitiy. looking at downtime, reduced production, and potentially irritated clients who will take their business elsewhere. The recent supply chain shortages can cause additional delays as you wait for a new compressor or spare part. By simply having your backup compressor ready to go, you can eliminate that downtime and keep your customers happy while you wait for your primary system to get fixed or replaced.

    The Importance of Backup Compressed Air Systems

    There are several reasons why you’ll be grateful for your backup compressed air system. It’s not only for emergencies—you can also use it to help with fast turnaround expectations, load sharing, and more:

    • Reduced Downtime: Instead of waiting for your primary system to be repaired or replaced—something that could take weeks or months if you’re waiting for a part—you can minimize the financial impact of downtime by having your backup system ready to go.
    • Saved Costs: When you invest in a backup system, you save money in the long run because you won’t lose production if your primary system goes down. You won’t have to pay employees overtime to meet deadlines. 
    • No Project Delay: You can switch to your backup compressor almost instantly, allowing for smooth continuation of the project you’re working on. You can run your backup compressor while you wait for any necessary replacement parts to come in.
    • Seamless Scheduled Maintenance: Instead of facing downtime during routine or emergency maintenance, you can plan to run your backup compressor during that time. That reduces the pressure on the maintenance technician to work too quickly, and it allows you to schedule maintenance when it’s convenient for you and the maintenance team. 
    • Load Sharing: Instead of letting your backup compressor sit unused and wondering if it will work correctly when you need it, keep it in action. Spread the workload over both machines with a timer to ensure even load sharing, and schedule maintenance for each while the other is in operation. 
    • Increased ROI and Production: No downtime means no wasted time. Production stays on schedule so you can meet deadlines and keep clients happy. Your backup compressed air system pays for itself over the years with increased production. 
    • Operate Multiple Pieces of Equipment: On a tight deadline, a large projection, or in anticipation of orders to come, you can speed up production by using both systems at once to operate multiple pieces of equipment. 

    Compressed Air Systems: Your Partner for Air Compressor Systems

    Since 1963, Compressed Air Systems has specialized in air compressed air, blower, and vacuum systems for clients in a range of industries, including food and beverage, medical, industrial, aerospace, CNC machining, plastics processing, woodworking, electronics, and more. With a 30,000-square-foot facility in Tampa, Florida, we sell, service, and rent pneumatic tools and equipment, and we offer compressed air audits, leak detection, and more. 

    If you need a backup compressed air system, we can help. Our customer care team is friendly and responsive, and we’re prepared to answer any questions you might have. Contact us to learn more about the benefits of having a backup system or to request a quote.

  8. The Pros & Cons of Buying a Used Air Compressor

    Comments Off on The Pros & Cons of Buying a Used Air Compressor

    Air compressors are vital equipment for many industries and, when purchased new, can be very costly. Purchasing a used air compressor can offer a lot of benefits. However, there are a number of factors to consider to ensure you end up with a high-quality machine. Perhaps the most important aspect of purchasing a used air compressor is finding a supplier with stringent quality assurance processes. 

    For example, the used vendor should detail their testing procedures and should offer a purchase guarantee. Ideally, the used air compressor supplier has extensive experience in pneumatics and service components in-house. If you’re deciding whether a used air compressor is right for you, we’ve compiled a list of pros and cons, which we expand on in our eBook, “A Buyer’s Guide for Used Air Compressors.”

    Download A Buyer's Guide for Used Air Compressors


    Depending on your situation and requirements, there are a number of significant benefits to choosing a used air compressor, including:

    • Cost-effectiveness: Used air compressors can save you a lot of money compared to purchasing a new machine. Even the best equipment can malfunction or break, and the cost of a new unit might not always be within the budget. Used air compressors from a reputable dealer can provide you with years of reliable service at significant cost savings.
    • Lack of initial depreciation: Any new machinery immediately depreciates in value after it’s purchased. Used air compressors have already depreciated in value, so you can enjoy the benefits of a lower-cost machine without dealing with this initial investment depreciation.
    • Pre-purchase knowledge of wear: Reputable sellers are familiar with the machine’s past usage and can provide you with records of it. You will be able to see how the machine was used in the past, how it was maintained, and the wear level of its integral parts before purchasing.
    • Excellent temporary business solution: Due to the high durability of air compressors in general and the significant cost savings of used models, they make highly effective quick fixes for challenging situations. If you require air compressors for your business, purchasing used allows you to quickly access an affordable solution while you consider when and which type of new model to purchase in thefuture. 


    There are some drawbacks to purchasing used air compressors that should be considered as well. For example, there can be a limited selection of used models available and it can be challenging to source the specific type you need. Some other drawbacks include:

    • Limited warranty options: While it is sometimes possible to find used equipment with an available or extended warranty, that is not always the case. There are fewer options available to protect you from the repair or replacement costs with used machines. However, reputable sellers will offer a money-back guarantee period for used air compressors.
    • Increased maintenance requirements: Performing regular maintenance on used air compressors is crucial for extending their lifespan and guaranteeing reliable service. Compared to a new unit, you might have to replace parts more frequently or factor in more maintenance downtime.
    • Decreased longevity: While most air compressors are built to last 10 to 15 years or more, purchasing used means that it’s difficult to determine how long your equipment will last. Obtaining a detailed service record is crucial for understanding how long your machine was used and how well it was maintained. After you purchase, performing regular audits and machine upkeep will sustain its lifespan. 

    Purchase With Confidence From Compressed Air Systems

    Compressed Air Systems has over 55 years of experience servicing and selling pneumatic tools. We understand the challenges of deciding between new and used compressors and help our customers make the best choice for their business. Our extensive quality assurance protocols for all used equipment include several hours of test-running to ensure they maintain pressure and a thorough evaluation of all air compressor components.

    Additionally, all of our used air compressors are backed by a 30-day money-back guarantee. To learn about more vital factors to consider when purchasing a used air compressor, download our free eBook, “A Buyer’s Guide for Used Air Compressors.” To talk to our experts about your compressed air system needs, contact us today. 

  9. Top 3 Advantages of Using Stainless Steel AQUApipe

    Comments Off on Top 3 Advantages of Using Stainless Steel AQUApipe

    If your industry requires compressed air, you know what an expensive inconvenience it is when you have to deal with power loss or faulty piping. Even a small hole or miscalibration can cause a significant increase in energy costs. To prevent this, it’s important to choose the correct air compressor piping for your system. While there are many piping choices, stainless steel presents significant advantages to the consumer.

    In this blog, we will discuss the benefits of using stainless steel pipes in your compressed air system. We’ll also discuss the advantages provided by AQUApipe, a Press stainless steel solution from Compressed Air Systems.

    The Benefits of Stainless Steel Piping

    Selecting the right type of air compressor piping will ensure your system performs optimally. Using high-quality pipes that can resist risk factors found in your operation will ultimately reduce long-term maintenance costs, improving the total cost of ownership for your compressor equipment. Some of the most widely used air compressor pipes are made from materials that are prone to rust and corrosion, such as black iron pipe (commonly called black pipe).

    As such, stainless steel piping is becoming a preferred choice to prevent corrosion in air compressor systems. Stainless steel exhibits the strength and durability found in black pipe, but with fewer drawbacks. Stainless steel piping is also easier to weld than black pipe.

    Some of the properties of stainless steel piping include:

    • Lightweight
    • Corrosion-resistant
    • Difficult to damage or break
    • Long service life
    • Low maintenance

    When selecting stainless steel pipes for your air compressor, there are some factors to keep in mind. Threaded stainless steel pipes tend to gall and freeze, so it’s better to use solutions with press and grooved connections to avoid this problem. Otherwise, maintenance and disassembly can get cumbersome.

    The experts at Compressed Air Systems have created our proprietary AQUApipe stainless steel pipe solution with unique design elements that provide advantages over other stainless steel pipe options.

    Why Use AQUApipe?

    AQUApipe is a stainless steel piping system used for process fluids and gases. If you’re considering stainless steel piping for your air compressor system, AQUApipe is a superior choice for these three reasons:

    1. Cost-effectiveness. AQUApipe offers the most economical 304/316 stainless steel pipe, and fitting sizes from 0.5” to 10″.  In addition, it features press fittings that can be installed in under one minute and don’t require expensive tooling. This design has resulted in a 50% reduction in installation costs compared to traditional methods.
    2. Long-term reliability. Using a simple and robust connection with built-in sealing and an extended fitting sleeve, the AQUApipe system is built for longevity. It has numerous long-lasting material and seal options to accommodate the conveyance of nearly any liquid or gas.
    3. Short installation and repair times. Due to its flameless clean system, repair and installation times are greatly reduced compared to traditional stainless steel piping installation methods. Pipes from 0.5” to 4″ utilize a quick-press installation method, and 5″ to 10″ pipes feature a fast and simple clamshell connection.

    Main Applications of AQUApipe

    AQUApipe provides an optimal stainless steel pipe solution in numerous applications. Thanks to a versatile range of seal and material options, AQUApipe can handle virtually any liquid or gas. Some typical applications for AQUApipe include:

    • Acid solutions
    • Caustic solutions
    • Chemicals
    • Chilled or cooling water
    • Compressed air and inert gases
    • DEF
    • Hot water
    • Hydraulic oils
    • Low-pressure steam (15 psi maximum)
    • Process water
    • Vacuum
    • Waste waters
    • Drinking Water (NSF-61 & 372 approved)

    AQUApipe features thoughtful design elements that make it easily adaptable to a wide range of applications. The strength and longevity of stainless steel make it an excellent, economical choice, and AQUApipe delivers all the benefits of stainless steel, without drawbacks such as lengthy installation time or thread galling. The AQUApipe system can easily be adapted to any existing pipe system and equipment.

    About Compressed Air Systems

    Whether you need to purchase a complete air system or simply repair an old one, Compressed Air Systems has the advanced expertise and innovative solutions to meet your needs. We offer a broad portfolio of compressed air solutions, including:

    • Air compressors
    • Air dryers (including desiccant air dryer options)
    • Bell reducers
    • Compressor drain traps
    • Condensate drains
    • Horizontal air receivers
    • Industrial vacuum cleaners
    • Quick couplings
    • Threaded floor flanges

    To see how our AQUApipe solutions can improve the service life of your air compressor system, or to inquire about any of our other products, please contact us today.


  10. The Role of Differential Pressure Gauges in Maintaining Air Quality

    Comments Off on The Role of Differential Pressure Gauges in Maintaining Air Quality

    What Is a Differential Pressure Gauge?

    differential pressure gauge on white backgroundDifferential pressure—also referred to as DP or ∆p—describes the difference in pressure between two specified points. In process systems, unexpected fluctuations in this value can mean a component needs maintenance, repair, or replacement. For this reason, knowing and understanding current DP levels is essential to ensuring equipment remains in proper working order and operations proceed smoothly. 

    One of the primary tools used for this purpose is differential pressure gauges—also known as differential pressure indicators. These instruments are designed specifically to measure the difference in pressure between two pressure points or connections within a system and provide a visual indication of the results. 

    Monitoring Air Filter Status Using a Differential Pressure Gauge

    The filter is a key component of many compressed air systems. It removes contaminants from air coming into the system to ensure the air exiting the system is clean and safe for use. Its function results in a natural difference in pressure between the inlet and outlet sides. However, as it becomes clogged over time, the differential pressure increases. 

    System operators can use a differential pressure gauge to monitor this change and determine if and when their filter system has reached the point where it must be replaced. There are many benefits to using this filter monitoring method over others, such as helping operators remain aware of the current status of their filter and encouraging operators to replace filters once they exceed the manufacturer-recommended operating life.   

    Common Misunderstandings About Differential Pressure Gauges

    Differential pressure gauges are often fitted to the filter housings of compressed air systems to facilitate filter status monitoring operations. Despite their ubiquity, there are many misunderstandings about them. Below, we debunk some of the most common myths.

    Myth 1: Differential pressure is an indication of air quality. Therefore, a DP gauge is an air quality indicator.

    Fact: Filters are used to remove contaminants from the air flowing into compressed air systems. Differential pressure is directly related to the condition of the filter element (i.e., more contamination buildup means more differential pressure between the inlet and outlet sides). However, it is not directly related to the quality of the outgoing air (i.e., high or low differential does not mean more or less contaminants in the outgoing air). 

    Myth 2: My filter has a differential pressure gauge to indicate when I should change my filter element.

    Fact: Compressed air filters are often fitted with a DP monitor or indicator. However, these elements are not considered true DP gauges; they are typically less accurate (±25%) and uncalibrated. As such, they should only be used as a premature blockage indicator rather than a service indicator. 

    Myth 3: Compressed air filter elements should only be changed when the differential pressure increases.

    Fact: In compressed air systems, differential pressure is a measurement of pressure loss. The air compressor must often operate at higher pressures or for long periods of time to overcome differences in pressure, which can show fluctuations in differential pressure regardless of the condition of the filter element. In addition, any holes or tears in the filter would prevent the differential pressure from registering a change, even if the filter were clogged. 

    Differential Pressure Gauges: Keeping Your Air Quality in Check

    Differential pressure gauges are invaluable tools for monitoring air filter status, which, in turn, is essential to ensuring a compressed air system maintains high air quality standards. To learn more about compressed air filters and other system elements, turn to the experts at Compressed Air Systems.

    Our eBook, How to Properly Maintain Compressed Air Filter Elements, provides a comprehensive overview of compressed air filters and how and why to maintain them.

Click Here to Shop Our Products