Propylene glycol (PG) and ethylene glycol (EG) are the most widely used glycols. If you are using propylene glycol in your solar thermal or radiant floor heating installations, this is a product you should be offering to your customers. propylene glycol-based fluids Solutions of DOWFROST propylene glycol-based fluids are widely used for secondary cooling and heating applications, for freeze and burst protection of pipes, and for various deicing, defrosting, and dehumidi-fying applications. Free shipping on all orders. It has a long track record over many decades in this application and is widely available from a number of sources. Mono Propylene Glycol, commonly referred to as Propylene Glycol but also referred to as Propane-1,2-diol, MPG, PG and Food Safe Glycol. Effective in heat exchangers, hydronic heating, solar systems … The FDA classifies propylene glycol as an additive that is “generally recognized as safe” for use in food – not exactly a ringing endorsement. 97 $33.95 $33.95 GPM = BTUH / (GPM XΔT X 500 X CORRECTION FACTOR) The correction factor depends on the … 9 products. Propylene glycol is practically odorless and tasteless. For example if a coolant loop or system is being winterized and temperatures will fall down to -10°F at the lowest, a mixture of 30% propylene glycol to 70% water will be enough to protect the system. Where food or potable water contact may be a concern, specify propylene glycol. It is a colorless, odorless, slightly syrupy liquid that is a bit thicker than water. Paying to maintain and operate a propylene glycol filled heating system is like buying insurance TWICE. These questions ultimately affect the mixture ratio of the glycol. When an aqueous solution of propylene glycol in a cooling or heating system develops a reddish or black color, this indicates that iron in the system is corroding significantly. According to S cholar Chemistry’s (now Ward’s Chemistry ) material safety data sheet, problems associated with liquid GP include irritation and sensitivity to the eyes, skin, and mucous membranes. Glycol or other spent fluids evacuation from HVAC loops, geothermal loops, ice rinks, process heating and cooling systems, etc. When designing home heating systems for remote locations I often specify a non-electric gas-fired fireplace. Propylene glycol (PG) has become the most common heat transfer fluid used in closed-loop solar heating systems that contain antifreeze. The glycol inside our electric radiators is a ready to use propylene glycol based non-toxic heat transfer fluid with anti-freeze and anti-corrosion inhibitor functions designed for heating systems and sealed radiators. Solar Mate, HD 8005, Propylene Glycol / Solar Glycol, Heat Transfer Fluid Solar Mate HD 8005 is a premixed reversible vaporizable special propylene glycol based heat transfer fluid, for solar heating installations. Glycol is a mystery fluid to many in the HVAC industry, but it is an essential tool for designing many different types of HVAC systems. Comparing Glycol Fluids for Industrial Heat Transfer. Propyleneglycol is considered non-toxic, or at least the FDA labels it at low-acute oral toxicity. Dynalene Propylene Glycol is an inhibited non-toxic propylene glycol heat transfer fluid which offers users a stable, safe, and efficient product for applications where freeze protection is needed. Propylene glycol is a synthetic food additive that belongs to the same chemical group as alcohol. In Canada, where glycol is essential to protect HVAC systems from freezing, most contractors have a basic understanding of why glycol is used. If we take the specific gravity times the specific heat, we could call it a correction factor. But, there is another member of the glycol family that fits the needs of liquid process cooling and heating systems. Ethylene Glycol is the most common antifreeze fluid for standard heating and cooling applications. It freezes at 32°F and boils at 212°F. It is is a chemical found in personal care products that acts as a penetration enhancer that keeps products from melting in heat and/or freezing when it is cold. E.g. No application needed. There are two main types of glycol common to heating and cooling use: Propylene glycol (PG), and ethylene glycol (EG). contains a propylene or ethylene glycol, these values should be included. zPropylene Glycol 8.62 zDipropylene Glycol 8.53 zTripropylene Glycol 8.51 Volume changes resulting from heating or cooling glycol-water solutions may be readily calculated from the data presented in the below graphs. Quantity discounts available! It takes so little to keep a home from freezing with a little forethought. Instead solutions based on propylene glycol are commonly used. Propylene Glycol is a propanediol that exists as a clear, colorless and hygroscopic liquid and consists of propane where the hydrogens at positions 1 and 2 are substituted by hydroxyl groups. It may exist in air in the vapor form, although propylene glycol must be heated or briskly shaken to produce a vapor. In a food-grade form, PG is actually common in the food industry as a flavor- … What is propylene glycol? The addition of glycol antifreeze (such as Dowfrost HD™ propylene glycol, Dowfrost™ food grade propylene glycol or Dowtherm SR-1™ ethylene glycol) to water in hydronic heating and cooling systems, lowers the freezing point of your heat transfer fluid mixture. From chart above, correction factor is 1.75. Operating temperature range: -50°F to 250°F ALUMINUM SAFE: 98% propylene glycol with acid neutralizer, scale inhibitor and a chelate agent for high efficiency and triple protection against corrosion. Using a 50% propylene glycol solution. When they do freeze up people call their insurance man. Ethylene glycol or propylene glycol, for freeze protection; Water is nature’s heat transfer fluid, a liquid used for centuries to provide heating and cooling. They are manufactured with DOW PuraGuard™ Propylene Glycol USP/EP, a pharmaceutical grade of monopropylene with specified purity greater than 99.8%. A properly designed, commissioned [more] Prevent your pipes from freezing with pipe antifreeze from Grainger. Propylene glycol is used as an organic solvent and diluent in pharmaceuticals and many other industrial applications. in food & beverage processing and where there are other environmental risk considerations - such as … Direct connect into system; Hauling and proper disposal or recycling of spent glycol; Resupply of virgin and inhibited glycol heat transfer fluids Keep your pipes from bursting with pipe antifreeze from Grainger. It is a clear, odourless, tasteless liquid that readily dissolves in water and is described in the news release as “relatively non-toxic to humans and wildlife.” In engine coolants, propylene glycol is mainly used to reduce the freezing point of the liquid, thus preventing the cooling system and the engine from corrosion, overheating and freezing. In burst protection liquids, propylene glycol, with its inherently high boiling point, lowers vapour pressure.. Propylene Glycol has for many years been the go-to glycol for use in food and beverage processing systems or where there is a requirement for a non-toxic classification. But research shows it can cause a few health concerns, including: Rashes and allergic reactions. 30% propylene glycol has a freeze point of 8°F but the burst point is -18°F. Propylene glycol USP is approved by the Food and Drug Agency (FDA) as a drug solvent for oral, topical, and injectable formulations. 5 health conditions caused by propylene glycol . Heat transfer fluids One substance - multiple benefits. Provide superior protection with 55 Gallon Drums of TRUEGARD Propylene Glycol Inhibited-Heat Transfer Fluid 50/50 from Keller-Heartt. Ethylene glycol should be avoided if there is a slightest chance of leakage to potable water or food processing systems. Its chemical neutrality makes it a suitable carrier for active ingredients in vaccines, local anesthetics, vitamins, and syrups. Ethylene glycol is the industry standard for closed loop freeze protection and is the product we use in most applications. For example, in heating 10,000 lb of PG from … Use in water chillers, refrigeration systems, thermal storage, solar systems, heating and cooling loops and radiant heating systems. E.g. Shop today! GLYCOL CORRECTION FACTORS Example: Pressure drop through the device is 5' with water at 50F. Propylene glycol is less toxic, breaks down more rapidly and is more environmentally friendly. 877.244.5525 (U.S.) Propylene Glycol - USP - Kosher - Food Grade - USP - Kosher - 36 oz net wt in a 1 Quart Safety Sealed HDPE Container with resealable Cap 4.6 out of 5 stars 1,302 $18.97 $ 18 . Bulk sizes available. These specially formulated industrial inhibitor packages designed to prevent corrosion are widely used for closed-loop, water-based HVAC, process heating and cooling, and food industry applications. Operating temperature range of -50ºF to 325ºF (-46ºC to 163ºC). Multiply 5' x 1.75= 8.75' corrected pressure drop for 50%PG Propylene glycol is used in QEC’s district heating system because of its ability to transfer large amounts of heat. They contain specially formulated packages of industrial inhibitors that help pre- Propylene glycol should be replaced when it turns a reddish color. Propylene Glycol. Propylene glycol is far from the most dangerous ingredient hiding in your food. To extend this range, other chemicals like ethylene glycol and propylene glycol are added. Propylene glycol is clear, colorless, slightly syrupy liquid at room temperature. Propylene Glycol (PG), also referred to as Mono Propylene Glycol (MPG), has traditionally been selected for cooling and heating systems where a non-toxic classification is required. 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