Dec. 02, 2024
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As an industrial facility manager, one of the most important responsibilities is ensuring that you have reliable tanks for storing various materials safely. Chemicals, water, and petroleum are some of the most common materials that need to be stored, and these substances can be hazardous if not stored appropriately. If you're on the lookout for a dependable storage tank, an epoxy steel bolted tank could be the perfect solution. Here, we'll explain what makes these tanks so effective, and why you should consider investing in one for your facility.
An epoxy steel bolted tank is a storage tank made of high-quality, galvanized steel plates that are sealed with epoxy coatings. These tanks are made by connecting individual steel plates using high-tensile bolts, and the process makes them incredibly strong and durable. When you use a bolted tank to store materials, you can rest easy knowing that it can withstand the harshest environmental conditions, including high winds, extreme temperatures, and even seismic activity.
Now that we know what an epoxy steel bolted tank is let us take a look at some reasons why it's the superior choice.
One significant benefit of epoxy steel bolted tanks is that they are easy to install and maintain, thanks to their bolted construction. The construction also makes it easy to repair the tanks or replace specific panels as needed, minimizing the cost of tank maintenance. Additionally, these tanks can be installed relatively quickly, as they don't require any welding.
As mentioned earlier, epoxy steel bolted tanks are incredibly durable and can withstand various environmental elements. These tanks have a long life span, which makes them an excellent investment for any industrial facility. Since they are made of steel, they are also resistant to corrosion and rust, which further increases their lifespan.
Epoxy steel bolted tanks are highly customizable and can be designed to suit the specific needs of your facility. You can modify the tanks by adding height, diameter, and volume based on your requirements. Additionally, epoxy steel bolted tanks can be coated with different colors, which can help them blend in with the surrounding environment.
One of the most significant advantages of epoxy steel bolted tanks is that they are a cost-effective storage solution. They are relatively affordable when compared to other storage tanks and have low maintenance requirements, which further saves you money.
In summary, an epoxy steel bolted tank is an excellent storage solution with a wide range of benefits that make it the perfect choice for commercial facilities. Its durability, ease of installation, and customization make it the ideal choice for storing different substances safely. Moreover, it's a cost-effective option as the maintenance cost is low. Whether you're in the petroleum, chemical or water storage industries, investing in an epoxy steel bolted tank is a wise decision.
If you are interested in purchasing an epoxy steel bolted tank, you can contact us today, and we'll be glad to take you through the different options available to you. Our team of experts is always available to answer any questions you may have regarding the product, and we will ensure that you get a tank that meets your unique needs. As a leading epoxy steel bolted tank supplier, we can guarantee our products' quality as they meet the latest international safety standards. Get in touch with us today to learn more!
The tanks described in this publication are atmospheric tanks (unpressurized tanks) and store commonly used products such as liquid fertilizers, diesel, gasoline, and pesticides Another group of tanks, known as code tanks (pressure vessels), hold products such as anhydrous ammonia, propane, and fumigants While code tanks and atmospheric tanks are both designed to hold products, their similarities end there.
Do not weld on this type of tank unless you are certified.
Code tanks are designed and manufactured according to federal guidelines and standard setting organizations For instance, every anhydrous tank made in the United States is registered with the National Board of Boiler and Pressure Vessel Inspectors (National Board) and given a unique serial number that links it to the manufacturer.
Because code tanks are built to withstand higher pressures, federal regulations define how often they must be inspected, who is qualified to perform inspections, and who is qualified to make repairs Inspectors are certified to inspect code tanks, measure the thickness of the walls, observe the status of the welds, and test the pressure holding capabilities of tanks.
Pressurized tanks are designed to hold specific pressures. No matter the tank &#; pressurized or atmospheric &#; call the manufacturer to honor warranties, work quality, and other factors before working on them yourself.
If you have a problem or issue with one of these tanks, you will need to contact a welder who is certified to make repairs on code tanks Certified welders are the only ones qualified to legally make the repairs These welders are not only certified, they also have experience and knowledge of working on pressurized vessels.
Code tank welders identify their work by placing their name and stamp on a plate next to the area they repair An R stamp on an anhydrous ammonia tank signifies that the tank was repaired according to the National Board&#;s inspection code Ensure the R stamp has the National Board symbols and keep the welder&#;s R stamp certificate number on file.
An access hole was cut into this tank to repair the internal baffles. This process is acceptable as long as the repair shop has the proper credentials and follows the correct procedures.
Most leaks in unpressurized mild steel tanks occur through a corroded weld rather than through the side or floor Any product escaping through a hole or weld will eventually get worse and must be repaired
Repair the damage as soon as possible after you discover a leak While you can make some repairs while the tank is full by welding a steel plate over the outside, it is best to repair it when the tank is empty
When making a repair, put a 3- or 4-inch plate over the area that&#;s been breached Try to cover the leak area with as large a patch as possible, since you don&#;t initially know the extent of the damage.
However, be careful that the flat plate is not so large that it sticks out over the curvature of the tank If you weld a patch that is too small, you could create more leaks if the area being repaired is weak and thin.
A permanent repair to this tank would involve removing the damaged area by grinding and replacing the weld with a full penetration weld.
Empty the Tank First Remember: patching a tank that is full of product could lead to more problems because you won&#;t know the extent of the weakened areas without inspecting the inside. When possible, pump the tank out at least below the leak. If the area around a hole is weak, you may end up making the leak larger.
Sometimes, the liquid in the tank can keep the metal too cool to get a good weld in the repair area.
Be sure to paint all repaired areas to prevent the metal from rusting.
While you can make repairs to stop the leak, it&#;s important to consider these repairs as only temporary Depending on the damage, you may also need to inspect and repair the inside of the tank When you do, make sure to check the air quality and properly vent the tank prior to entering (see Pages 25-26) Carefully inspect the area on the inside that was repaired on the outside.
Welding rods known as , , or are often used to repair mild steel tanks A welding rod is easy to work with, versatile, and readily available in most shops.
It&#;s been said that welding stainless steel is as much art as science You must weld stainless steel in a manner that repairs the problem without altering the physical and chemical composition of the steel The best approach is to hire a welder who is experienced on stainless tanks and knows which technique, rod, speed, and heat is most effective.
Rounded corners on the patch plate allow you to place a better quality weld on the tank. Welds that meet at a square corner are often the source of cracks. These welds were made because the patch wasn&#;t big enough.
(Left) Notice the even bead and good tie in to the parent material on this good weld. Even the cap finish indicates a knowledgeable welder. (Right) Now observe the extremely irregular bead and poor tie in to parent metal on this poor weld.
Many times, you don&#;t discover a leak until the tank is full and in use, and must be fixed quickly In some rare instances, you can repair leaks with product still in the tank, but you&#;ll have to drain the tank in most cases Very few welding shops will have a way of properly disposing any chemical you leave in the tank or of working on a loaded tank In other words, you must remove all pesticides and fertilizers from the tank before it can be repaired.
Have the welding shop test for vapors in the tank to ensure it is safe to weld To expedite repairs, consider preparing the tank before bringing the welder onsite or bringing the tank to a shopHave the welding shop test for vapors in the tank to ensure it is safe to weld To expedite repairs, consider preparing the tank before bringing the welder onsite or bringing the tank to a shopHere are some things you can do to prepare your tank for repairs:
You can often find used steel tanks at acceptable to ensure you don&#;t end up buying one that should prices But just like buying a used car, tractor, have been sold for scrap It is often a good idea to or wagon, it&#;s buyer-beware when you purchase pay a professional inspection agency to inspect the a used tank Thoroughly inspect any used tank tank for you.
Contact us to discuss your requirements of Dry bulk storage silos. Our experienced sales team can help you identify the options that best suit your needs.
It is good advice not to buy a used tank without knowing its history. You can&#;t look at a newspaper or online ad and determine if the tank still has a number of useful years. You will have to visually inspect the tank. Never buy a used tank sight unseen.
This tank looks worn out, but a closer look may reveal that it&#;s a solid tank that needs nothing more than a good paint job. In other cases a tank may look good when you inspect it and it held product for years only to leak after you move it. Before buying any used tank, inspect the inside for pitting if possible.
Here&#;s what the owner of this tank had to say: &#;This 25,000 gallon tank was set in a dike in either &#;97 or &#;98. It was a used tank when we put it there. The circle and X is where there was a small bird&#;s eye. It was not a hole. The real problem was on the throat of the manhole. After putting two loads of 28 0 0 in the tank, a small drip developed. The tank was emptied right away (there was no loss except for the tank). After scratching at the paint we found it was punctured on the throat. I was glad we caught it when we did.&#;
Check the condition of the top. The tank might look ideal at ground level, but looks can be deceiving. Make sure the tank is as good as it looks by inspecting the top. When you do, use fall protection in case the top cannot support your weight.
If you can locate the identification plate attached to a used tank, it will provide you with a tremendous amount of information The identification tag can include:
If you can locate the identification plate attached to a used tank, it will provide you with a tremendous amount of information The identification tag can include:
Thoroughly inspect a used mild steel (or any) tank before buying it Walk around the tank and look for any signs of repairs, rusting, or weak spots Don&#;t buy a tank that&#;s been repaired without looking at the state of the repair from inside the tank.
Be extremely careful when a used tank has a fresh coat of paint You should not purchase a tank that has been sitting on the ground unless you can inspect the bottom, because it may have a serious rust problem.
This 15,000 gallon used tank was thought to be in good condition. However, it had been sitting on the ground and the steel on the floor deteriorated. You can peel layers of rusted steel from the tank. The tank is worthless for anything but scrap.
Tanks that have stored liquid potash see more corrosion than some other liquids. Liquid potash is like storing liquid salts. It is very hard on mild steel tanks.
The sidewall of this tank shows significant corrosion. The outside might look clean, but it would not be a good idea to purchase this used tank. Be wary &#; a fresh coat of paint can be hiding a rusted or unclean steel surface that will not function long.
Used tanks waiting to be put in service.
Used tanks can be a good investment as long as you know the condition of the tanks inside and out.
A fresh coat of paint will make a tank look good from the outside, but it&#;s the inside that really counts When you inspect a mild steel tank, use a strong flashlight inside the tank and scan the floor and walls for pitting The severity of the pitting will be a key to knowing whether you should buy the tank.
A tank with rivets was probably made before or during World War II. The arrow points to a missing rivet. It is important to thoroughly inspect an old tank like this before you buy it.
The identification plate on this tank (manufactured in ) can tell you a lot about its construction.
Based on the number of old decals, this tank that was built in and has been through many owners. The National Board of Boiler and Pressure Vessel Inspectors (National Board) identification number indicates the tank was built as a pressurized vessel. The concern is whether or not this is an aluminum tank. For a fee, the National Board can provide you with a tank specification sheet as long as the manufacturer&#;s name and the board number are available. Call the National Board at 614 888 .
This was a vertical tank that stored 28 percent fertilizer. The base was made of mild steel. The tank leaked at a weld and poured under the base long enough to rust it out. If you buy a used vertical tank, make sure the deal is contingent on the base being solid when it is moved.
A well maintained mild steel tank can last for decades. With an appropriate inspection, used tanks offer tremendous value.
Used stainless steel tanks are in great demand But without the identification plate attached to the tank, it may be difficult to distinguish a stainless steel tank from a mild steel one Distinguishing stainless from mild steel is even more complicated if the previous owner painted the tank.
Before you buy a used stainless tank, consider the shell thickness Many of the used tanks you&#;ll see on the market were originally built for the food industry Food industry tanks are often built with lighter gauge metal (such as 12-gauge).
Lighter gauge steel may work well for fluids that weigh about the same as water For instance, milk weighs 8 2 pounds per gallon and beer weighs 8 4 pounds But heavier materials like fertilizers weigh about 11 pounds per gallon and may create a problem in light gauge tanks &#; especially if used for transport Check the plate on the tank to see if it provides the information about the gauge If not, call the manufacturer and use the serial number to determine what gauge steel was used on the tank when new.
Never assume that a stainless tank wrapped with insulation is in good shape Insulation wrapped around a tank can hide significant problems In some cases, insulation can react with water to produce hydrochloric acid, which in turn cracks the tank&#;s surface Without pulling the insulation away from the tank, it is nearly impossible to thoroughly inspect the tank.
If there are stress cracks, a dye penetrant tank kit will help you determine how deep the cracks may be Dye penetrant also may expose cracks that you cannot see.
A vacuum box is an instrument that runs on electricity and requires you to apply soapy water to the suspected area on the tank If it pulls air, it will show bubbles coming from the crack This device works on any steel or fiberglass tank If it pulls air through the crack, there is usually a leak.
Other areas of the tank to inspect include:
Before purchasing a used tank, consider a professional service to evaluate the condition of the steel tanks you intend to purchase.
Plastic, fiberglass, and steel all have advantages and disadvantages. When you purchase any tank, good judgment is the most important factor Remember that a tank is just as important to your operation as a tractor, truck, sprayer, and other equipment Take the time to match the tank material and size to the intended contents and application Making a careful selection can give you years of trouble-free service.
Before you consider a used steel tank, carefully inspect and assess the tank&#;s history and current condition This may prevent problems later.
And don&#;t forget to use this publication along with our other tank publications: Poly Tanks for Farms and Businesses (Purdue Extension publication PPP-77) and Fiberglass Tanks for Storage, Transport, and Application (PPP-93) &#; both available from the Education Store. They will help you purchase the tank that best meets the needs of the business and farm.
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