Polyethylene tanks, a type of poly tank, provide atmospheric, or non-pressure, storage of a multitude of substances. Since polyethylene has a broad range of chemical resistance of many materials, polyethylene tanks are utilized in numerous industries, particularly in agricultural, oil/gas, water, waste treatment, medical, scientific, food processing and pharmaceutical industries.
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Assmann Corporation of AmericaGarrett, IN Marshall, TX - 888-357-3181 Assmann Corporation is an NSF & ISO certified rotational molder of large and small double wall, vertical, horizontal and conical plastic tanks, and also chemical feed stations plus secondary containment basins. Our rotomolding process and extensive experience makes the difference... We offer many accessories, including full drain outlet, seismic restraints and more.
Protank® Ltd.Olive Branch, MS 866-776-8265 Protank offers the best polyethylene tanks available today. All of our plastic vertical tanks are available in 1.5 and 1.9 specific gravity. Our tanks feature tie-down slots, built-in graduated gallon indicators, an offset fill-well and a self-vented, slosh-proof lid. Our specialist can configure any tank to meet your needs, no matter the size or shape. Call us and ask what we can do for you.
Agri-Industrial Plastics CompanyFairfield, IA 641-472-4188 Agri-Industrial Plastics is your complete solution for polyethylene tanks. Depending upon your specific design & application, we offer Multi-Layer Co-extrusion, Mono-Layer HDPE Fluorinated or Monolayer engineering resin fuel tanks where applicable. Agri-Industrial Plastics can assist your company in the design & production of non-automotive fuel tank systems to meet your specs.
All Plastics and Fiberglass, Inc.Mobile, AL 800-226-1134 Since 1981, All Plastics and Fiberglass has manufactured and distributed industrial plastic and fiberglass products including polyethylene tanks. Strict quality control assures our customers they have the best product. We have built a reputation on high quality products and superior customer service and after-sale support for more than two decades. Call us today and see why customers prefer us.
Dakota MoldingFargo, ND 701-281-0001 Since 1996 Dakota Molding has been in the plastic tank business. We manufacture tanks such as polyethylene tanks for a multitude of different applications and industries. We offer solutions for new & emerging fuel permeability requirements & metal to plastic cost saving conversions. Our goal is to promote customer focused innovation design solutions that save money & enhance profitability.
Corrosion Resistant Technologies, Inc.USA, Multiple Locations - 800-245-3769 Corrosion Resistant Technologies offers free freight shipment and 17 stocking locations around the nation. CRT brings you the quality & engineering service you need for polyethylene tanks and other tanks from 60 to more than 30,000 gallons. We serve the industrial and agricultural industries with tanks, fittings, accessories and guaranteed chemical resistance to fit your storage & shipping needs.
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Polyethylene Tanks
Chemicals that polyethylene tanks have a particularly high resistance level to include acetatic acid, diethylene glycol, mercury, methanol, glycerin, acetone, iodine, motor oil, Vaseline, natural gas, transformer oil and caproic acid. However, polyethylene tanks are not well-suited for certain chemicals including chlorinated hydrocarbons such as solvents and gasoline. In addition, when contrasted to steel tanks, polyethylene tanks are advantageous due to a lack of susceptibility to corrosion, not requiring painting (since the colors can be molded into the tanks), and quick fabrication in just a matter of minutes. Additionally, certain polyethylene storage tanks, such as polyethylene water tanks and polyethylene fuel tanks, are UV-stabilized and food-grade.
Polyethylene tanks are typically made from virgin resins of high density polyethylene, abbreviated HDPE. While crosslinked high density polyethylene, abbreviated XLPE, can be used for polyethylene tanks, it is not a recommended material for many applications. Rotational molding is typically used to form polyethylene tanks. The process begins with a heated mold that causes the polyethylene within to melt; thus forming a puddle at the bottom of the mold cavity. Next, the mold is slowly rotated, usually around two perpendicular axes, resulting in the melted polyethylene flowing into the mold and sticking to its walls. The last part is the cooling phase in which the mold continues to rotate so that an even thickness is maintained throughout the part. Ideally, polyethylene tanks are constructed through the rotational molding process in a one piece, seamless construction. However, some polyethylene tanks are formed with a vertical seam, and, as a weak point in the tank, often causes splitting and water loss. Polyethylene tanks can be rotomolded in almost every possible configuration; rectangular, cone bottoms, drums, horizontal, cylindrical, open tops and flat bottoms. Polyethylene tanks are filled with a substance then sealed; the seal serves to keep the substance in or drain the substance out when necessary.
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