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Mural Brings Fresh Life to Wessels Company headquarters

Mural Brings Fresh Life to Wessels Company headquarters Mural Brings Fresh Life to Wessels Company headquarters Mural Brings Fresh Life to Wessels Company headquarters Mural Brings Fresh Life to Wessels Company headquarters Mural Brings Fresh Life to Wessels Company headquarters

September 2020

Contact: Rebecca Bennett- Marketing Coordinator

For Immediate Release

Mural Brings Fresh Life to Wessels Headquarters

GREENWOOD, IND. — Wessels Company has announced that the large-scale, outdoor mural at their headquarters in Greenwood, Indiana is complete. It took just over a week for the sketching and painting to be completed on the 100-foot by 20-foot wall.

The mural depicts the company’s logo as well as its products, like air and dirt separators and expansion tanks, which are manufactured at the factory. From concept to final design, some changes were made in collaboration between Wessels Company and local artist Macey Dickerson.

“When [Wessels] initially sent me reference photos to incorporate into the mural design, the expanded view of the heat exchanger really caught my eye,” Dickerson said. “It was such a cool diagram and I knew I wanted that the be a prominent feature. I really like how that part looks.”

She added, “Painting the Wessels logo was also really fun. I like how the curviness of the font contrasts nicely with the rest of the mural, which is more geometric.”


Dickerson was assisted in painting by her brother, Garrett Dickerson and her friend, Nick Service. “I enjoyed the process of working with my brother and friend who helped me bring the design to life,” Dickerson said. “I usually do projects solo, so it was fun working in a team and sharing the experience. I also enjoyed getting to meet the employees at Wessels. Everyone was so friendly and supportive! When it was break time, people were sure to stop by and say ‘hi’ and give encouragement. I felt so welcome.”

Jim Fuller, president of Wessels Company, says he is pleased with how the mural turned out.

“It adds color and art to the neighborhood,” Fuller said. “It also conveys our pride in our products, our employees, and being part of the Greenwood community.”

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How To: Acceptance Volume vs. Tank Volume

How To: Acceptance Volume vs. Tank Volume

Tank Volume: The overall volume of the tank, including air and water.

Acceptance Volume: The amount of water inside the tank.

Maximum Acceptance Volume: The maximum amount of fluid inside the tank before stretching the bladder/diaphragm.

Acceptance Factor: The percentage of of tank volume storing fluid, expressed as a decimal.

Drawdown Volume: The amount of water that is drawn out from a starting tank pressure down to the minimum pressure.

A tank’s drawdown volume is the amount of water that is stored between a high and low pressure, which is usually determined by a pump switch.  In real-world plumbing systems, the tank should not start at the maximum pressure and the air cushion pressure should not fall to zero.

The volume of water in a tank, called the acceptance volume, is sometimes expressed as a decimal or percentage against overall tank volume, called an acceptance factor. However, the tank should be charged on the tank’s air side to the minimum pressure needed within the system and filled to the maximum pressure in water required to adjust the tank’s pressure correctly. (pressure in the tank should be set accordingly: 10% below pump cut-in pressure (hydropneumatics); equal to pressure reducing valve pressure (hydronic), equal to line pressure (thermal – domestic water heater protection). As a standard, Wessels Company offers tanks pre-charged to 40 PSI, which can easily be adjusted and reduced in the field to fit the pressure needed within the system.

All replaceable bladder tanks Wessels offers are considered a full volume acceptance tanks, since the bladder inside can fully expand within the tank, allowing all the available space inside the tank to be used.  Fixed-diaphragm tanks are not full acceptance tanks because the diaphragm is confined to only a portion of the tank.

You can tell if a tank is a full acceptance tank by looking at its chart either online, on the submittal, or in the literature for each style of tank.  If the chart says tank volume, that means the usable volume inside the tank is the total volume of the tank.  For example, in a Wessels Company NLA series tank, the total volume of the tank is also the number of gallons the tank can hold, making the tank a full acceptance volume tank. A fixed-diaphragm tank like the NTA, however, lists both the tank volume and the maximum acceptance volume.

If you have more questions about tank volume and Wessels products, feel free to reach out by chatting with us in the chat window at the bottom right of our website, by emailing us at, or by calling our offices at 317-888-9800.

August Employee Spotlight!

August Employee Spotlight!

Guy Kirk has been part of the Wessels Company family for over 20 years!  He is the Vice President and East Coast Sales Manager.  He enjoys playing and watching all sports, particularly sailing and he loves eating seafood. In his spare time, he enjoys rooting for his favorite teams: New England Patriots, Boston Red Sox and the Indianapolis Pacers.


Guy fast facts:                                                                              
Favorite color:  Green

Favorite food: Steak and seafood

Likes: sports, sailing

Hobbies: rooting for and watching sports

How To: Understanding the Makeup of Glycol Makeup Packages

How To: Understanding the Makeup of Glycol Makeup Packages

How To: Understanding the Makeup of Glycol Makeup Packages

Wessels Company makes Glycol Makeup Packages in Glymatic, Single, Double, and Twin systems. The purpose of a GMP is to maintain system pressure.

In the sequence of operation in a system using a GMP, the glycol solution mixture is held in a solution container and then is pulled through a pump. The pump has an internal spring that utilizes a pressure relief valve, if the pressure in the system is too high. Fluid goes into the pump, the pressure is increased with a rotary vane, and then is discharged into the system at a higher pressure.

The package is protected by a low water cutoff probe in the solution container. Two probes are in the container and monitor the glycol mixture

level. If the level falls too low, the continuity between the offset probe is broken and the pump is shut off, which sounds an alarm.

The pump is controlled by a pressure switch, which is set to turn on at 60 psi and to cut off at 80 psi. The 80 psi of fluid is then stored in an expansion tank to hold the excess fluid. The expansion tank is a diaphragm tank that has a pre-charged pressurized air cushion, which helps maintain the pressure in the system to 80 psi.

The fluid then flows through a pressure reducing valve or PRV, which is set for the system’s required pressure. The valve’s range can go from 10 to 70 psi, which can be for whatever pressure your system needs.

Inside the PRV, a spring sets the tension that holds the valve open. The valve can be set to point downstream between 10 and 70 psi, the spring will hold the valve open until the downstream pressure equalizes the spring tension through the diaphragm, that will hold the diaphragm up and close the valve.

Wessels Company offers four different types of GMP systems: a glymatic, a single, duplex, and twin. A Glymatic system package is a free-standing solution reservoir that holds the glycol/water solution at atmospheric pressure. A pressure assembly is mounted on the solution reservoir’s cover keeping the pressurization unit off the floor. This GMP uses a pressure station to move fluid from a 6 or 15-gallon reservoir pressurized to between 1 and 25 psi, up to 130° F. The solution then remains stored until it is needed to replenish the system that has lost its glycol/water or water solution.

The single system GMP automatically services one closed-loop system. This GMP holds a reservoir of 50 or 100-gallons and 1/3 and 1/2 horse power pump pressurization control station with magnetic starter. The 1/3 HP is used for systems of 50 PSI pressure and the ½ HP station is used for systems up to 70 PSI.

The Duplex system or GMPD, services two separate closed-loop systems. This system is available with 50- or 100-gallon reservoir and 1/3 or ½ HP pump pressurization control also with magnetic starter.

The Twin system or GMPT also services one closed-loop system and is available with the 50 or 100-gallon reservoir with 1/3 or ½ HP pump.

However, a control panel with alternator and dual magnetic starter is used with this system to easily and automatically alternate between two pumps.

To see exactly how the GMP system works, you can watch our technical video, here.

You can also learn more about the GMPs, on our website, here.