We’ve worked hard at Poly Processing to provide a comprehensive website that addresses many of your questions about harsh chemical storage. We also provide resources like walkthroughs, downloads and even tools to help you build your chemical storage system or to request a quote. So that you can get everything you need out of this resource we’ve provided, we wanted to provide a walkthrough so that you know that PolyProcessing.com is the resource for all things chemical storage tank-related. Depending on what stage of shopping you’re in, you have different needs, so take a look and learn what our website can do for you.
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Technology Tips
In some chemical storage tank applications, it is necessary to install a ladder to allow for inspection, to check gauges, and to service level sensors or mixers. But what ladder options are available, and which ones are best for the chemical you’re storing?
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Fittings and Accessories
If you’re storing an oxidizing chemical like sulfuric acid or sodium hypochlorite in a polyethylene tank, an antioxidant barrier will more than double the life of that tank. Polyethylene, whether it be linear or cross-linked, has excellent chemical compatibility compared to other choices. Linear and cross-linked are both the same polyethylene in terms of chemical composition and compatibility. However, cross-linked (XLPE) has a much higher resistance to tearing because the molecular chains are bonded (or cross-linked) to one another, whereas HDPE is called “linear” because they are not. They also both share the same chemical formula and resistance properties. All polyethylene, like other materials, will eventually degrade given time, and a typical lifespan for tanks storing oxidizing chemicals will be shortened to 6-10 years without a proper resistance barrier.
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Value Added
A chemical storage tank system is a large investment. Just as proper tank maintenance and frequent inspections help ensure that the tank lives out its projected useful life, it is equally important to install the tank properly. Being prepared for the tank delivery, hydro testing the tank, and making sure fittings and flexible connectors are properly installed set your tank system up for successful operation. Here are some common questions we get regarding the installation process.
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Value Added
Tank blanketing is also referred to as tank padding, and it describes the process of applying an inert gas to the vapor space (or unused space) that exists above the chemical inside a storage tank. Tank blanketing is mainly used to add a layer of gas (usually nitrogen) to keep air or moisture from a chemical inside the tank. Since water and oxygen can degrade some chemicals, a nitrogen blanket may help increase the life of that chemical.
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Fittings and Accessories
If you’re new to the chemical tank storage world, it’s likely that you have a lot of questions. Which type of tank is best? What materials are available? What materials are best equipped to handle the chemical you need to store? It’s helpful to know what is standard in the marketplace, the best options for your chemical, and what enhancements might be available to make your chemical storage selection easier.
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Tank Design and Materials
The American Society for Testing and Materials (ASTM) has four tests in place for cross-linked polyethylene tanks. All are intended to ensure that the tank’s materials and composition meet the safety standards necessary for operational chemical storage tanks.
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Certifications and Standards
We’re all well versed on how important it is to choose your chemical storage tank based on the specific chemical you’re storing. The same goes for the pump you choose. Just as there are different tank options better for one chemical or another, certain chemicals and the location of pump require pump design and selection by an expert. Your Poly Processing distributor has carefully been chosen to be a systems expert, capable of combining features of the tank with other fluid handling equipment such as the pump.
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Fittings and Accessories
Many people think that a double-walled storage tank provides a total solution to secondary containment within a chemical tank storage system. And, for the most part, that is true. A tank-within-a-tank, made from high-density cross-linked polyethylene can provide 110% containment. But, what about the fitting on the tank? Is that also contained? If a chemical storage tank system is configured the right way with a transition fitting, your tank is truly protected, and its integrity maintained, but missing the proper fitting can be an especially costly mistake.
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Fittings and Accessories
Chemical leaks present major challenges on a multitude of levels. Not only do they indicate something has gone wrong, but they can cause damage to storage facilities, danger to employees, cost enormous amounts to fix and cleanup, and waste the chemical you’re storing.
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Fittings and Accessories
