Pneumatically filled chemical storage tanks have the potential for becoming over-pressurized. Over-pressurizing a storage tank through repeated fill cycles can damage and weaken the tank sidewalls, resulting in stress cracks and premature tank failure. Proper tank venting is needed to prevent over-pressurization.
Topics: Venting
High-density cross-linked polyethylene offers superior value for storing a wide range of critical chemicals. Gel level testing is the ASTM D-1998 method used to test the cross-link density of the polyethylene. The ASTM standard establishes a minimum for the percentage of cross-linked or polymer connected chains. This article and the downloadable technical bulletin will help to explain this standard.
Topics: Value Added
Having complete bottom drainage in a storage tank is key for safety and proper tank maintenance. Safely maintaining chemical storage tanks presents numerous challenges.
Topics: Fittings and Accessories
On January 9,2014, a chemical spill fouled the water supply for thousands of West Virginians. "Crude MCHM," 4-methylcyclohexane methanol used in washing coal and removing impurities, leaked from the Freedom Industries facility into the Elk River near Charleston, WV. In addition to the leak at the Freedom Industries’ chemical storage facility, Freedom Industries has since been cited for unsafe storage conditions at a second chemical storage site. Freedom Industries has subsequently filed for bankruptcy.
Topics: News and Customer Stories
As a colorless, fuming chemical, hydrofluosilicic acid offers its share of storage challenges. Let’s explore these challenges, and the storage solutions of hydrofluosilicic acid.
Topics: Chemicals
The Bellows Transition Fitting provides secure yet flexible, fully contained SAFE-Tank® bottom discharge. An expansion joint is incorporated to allow the tank to expand and contract freely during loading and unloading. This fitting virtually eliminates damage from piping vibrations caused by pumps.
Topics: Fittings and Accessories
Stainless steel has long been the tank material of choice for storage in the food and beverage industry. Historically, businesses have been hesitant to choose polyethylene storage solutions, believing the porous resins would allow leaching and bacterial growth.
Topics: Chemicals, Applications
From pink yard flamingos to dump truck beds, and hundreds of other sized products in between, rotational molding is an efficient manufacturing process. Rotational molding is especially effective in the manufacturing of chemical storage tanks. Let’s look at the advantages of rotational molding, and the value Poly Processing can bring to you.
Topics: Value Added
Selecting the right sidewall fittings for a poly chemical storage tank is crucial. The proper fittings ensure optimum function and maximum life of the polyethylene tank. Proper sidewall fittings avoid tank leaks and spills. Selecting sidewall fittings purely based on cost can lead to an expensive mistake. Let’s explore the three types of sidewall fittings and when they should be used in tank configurations.
Topics: Fittings and Accessories
It's simple common sense. A longer-lasting storage tank is a less expensive storage tank. One question we hear frequently is: “How long should a high-density crosslinked polyethylene tank last?” Based upon feedback from actual customers over 35 years, high-density crosslinked polyethylene (XLPE) lasts 30-40% longer than linear polyethylene tanks. This translates into ten additional years of useful tank service, with 15-20 years as the typical useful life of high-density crosslinked polyethylene tanks.
Topics: Value Added
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