Archive: Oct 2021

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.

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.

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.