Sign up for our newsletter and we will notify you when new HVAC articles and resources are made available. Well, your question is posed in an odd way. 0000013123 00000 n %PDF-1.2 %���� 0000037086 00000 n 0000032908 00000 n Selecting The Proper Glycol Concentration For Closed Loop Hvac Systems. Distilled water has an advantage over normal tap water in that it protects the humidifier against calcification and mold. G&D Chillers recommends a 35% Inhibited Propylene Glycol to 65% water (24.75 brix). 0000003031 00000 n 0000009399 00000 n Propylene Glycol Coolant is a transparent orange liquid. A safe ratio is one part glycol / 2 parts water, this will give you a freeze point of approx +5 F. a solution freeze point 20 F below thermostat set point is a good target. of a component, the boiling point of a mixture, and the specific gravity of the mixture. 0000047170 00000 n 0000064732 00000 n 0000027718 00000 n There are two basic types of glycol protection available for your closed-loop HVAC system: “burst protection” and “freeze protection.” Burst protection is sufficient if the system will remain dormant or inactive when the temperature drops below freezing and there is adequate space to accommodate the expansion of an ice/slush mixture. 0000050770 00000 n Ignore your friend, 1 cup/gallon is 1/16, about 6%. This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. 0000003053 00000 n About 41% by weight of propylene glycol in water will get you to a freezing point of - 10° F. Since propylene glycol has a density of 1.04 g/cm^3, this corresponds to 42.5% by volume. trailer << /Size 119 /Info 2 0 R /Root 5 0 R /Prev 81507 /ID[<110de79e5da2a541cfa14207e8cc0222>] >> startxref 0 %%EOF 5 0 obj << /Type /Catalog /Pages 1 0 R /Metadata 3 0 R >> endobj 117 0 obj << /S 36 /Filter /FlateDecode /Length 118 0 R >> stream 0000016942 00000 n 0000020619 00000 n 0000012753 00000 n 0000011765 00000 n However it should never be confused with ethylene glycol (often referred to as glycol)! 0000051552 00000 n A propylene glycol based antifreeze that is nontoxic, noncorrosive, and can … 0000033474 00000 n The freeze point temperature should be 25°F below the lowest required setpoint (see chart). 0000046407 00000 n 0000004390 00000 n Although propylene glycol … This chart may only help to confuse. Where food or potable water contact may be a concern, specify propylene glycol. It is safe to handle as it is composed of propylene glycol. Specific gravity of propylene glycol is in the range Specific Gravity - SG - Propylene Glycol Solution (%) by mass 0 10 20 30 40 50 60 by volume0 10 20 29 40 50 60 Specific Gravity - SG - 1) 1.000 1.008 1.017 1.026 1.034 1.041 1.046 1) Specific gravity based on propylene glycol solutions with temperature 60oF. 9.0 ml 16.0 ml †Typical properties, not to be construed as specifications Glycols are heavy, syrup like fluids at full concentration, and become thinner when mixed with water. Propylene glycol is less toxic, breaks down more rapidly and is more environmentally friendly. View glycol concentration chart or use our calculator to determine freezing point and burst point of propylene glycol and ethylene glycol. Water evaporates from the mixture, and if you continue to add a premixed solution, eventually you will have too much glycol. The easiest thing to do if your system is half full is just to fill it the rest of the way with propylene glycol. Non-toxic, biodegradable and virtually odorless. 0000064296 00000 n Example - the specific heat of an ethylene glycol water solution 50% / 50% is 0.815 at 80 o F (26.7 o C). 4 0 obj << /Linearized 1 /O 6 /H [ 2716 337 ] /L 81713 /E 80154 /N 1 /T 81516 >> endobj xref 4 115 0000000016 00000 n 0000006959 00000 n 0000004947 00000 n 0000047466 00000 n When we discuss burst point protection, we are determining the coldest temperature at which the system fluids will become ice/slush, but doesn’t freeze and expand enough to burst the piping and coils. 0000052134 00000 n 0000005458 00000 n 0000033239 00000 n These questions ultimately affect the mixture ratio of the glycol. 0000041251 00000 n 0000006981 00000 n 0000055466 00000 n 0000008579 00000 n Please note this same amount of existing glycol must be removed from the system to accommodate the Freez-Kontr'l 95/5 (Propylene) or Freez-Therm(96/4 Ethylene) 2611 Schuetz Rd. 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. 0000067651 00000 n 0000005436 00000 n 0000002646 00000 n Propylene glycol is used by the chemical, food, and pharmaceutical industries as an antifreeze … propylene glycol fluids are used because of their low acute oral toxicity vs. the moderate toxicity of ethylene glycols. 0000049872 00000 n St. Louis, MO 63043 Telephone: 800.554.5499 0000050065 00000 n 0000016861 00000 n Propylene Glycol . What S Your Point Ze Or Burst Dynalene Inc. 0000024801 00000 n 0000027503 00000 n 0000028033 00000 n Propylene glycol is also used to make polyester compounds, and as a base for deicing solutions. ֺ0�83p��+:���]�o VAx endstream endobj 118 0 obj 229 endobj 6 0 obj << /Type /Page /Parent 1 0 R /Resources 7 0 R /Contents [ 15 0 R 17 0 R 96 0 R 98 0 R 100 0 R 107 0 R 109 0 R 111 0 R ] /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 7 0 obj << /ProcSet [ /PDF /Text ] /Font << /F1 11 0 R /F2 9 0 R /F3 10 0 R /F4 41 0 R /F5 52 0 R /F6 47 0 R /F7 24 0 R /F8 20 0 R /F9 34 0 R /F10 32 0 R /F11 81 0 R /F12 85 0 R /F13 91 0 R /F14 86 0 R /F15 61 0 R /F16 57 0 R /F17 59 0 R /F18 73 0 R /F19 68 0 R /F20 105 0 R >> /ExtGState << /GS1 116 0 R >> >> endobj 8 0 obj << /Type /FontDescriptor /Ascent 0 /CapHeight 0 /Descent 0 /Flags 32 /FontBBox [ 0 -25 825 728 ] /FontName /PCOFHB+TT6DE71o00 /ItalicAngle 0 /StemV 0 /CharSet (/zero/percent/period/one/five/four/seven/nine/three/two/eight/six) /FontFile3 113 0 R >> endobj 9 0 obj << /Type /Font /Subtype /Type1 /FirstChar 32 /LastChar 176 /Widths [ 277 0 0 0 0 888 0 0 0 0 0 0 0 0 0 0 554 0 0 0 0 0 0 554 0 0 0 0 0 0 0 0 973 721 0 721 721 665 611 778 721 277 0 0 611 832 721 778 665 0 721 665 611 721 665 942 0 665 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 277 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 400 ] /Encoding /WinAnsiEncoding /BaseFont /PCOFGB+TT6DE70o00 /FontDescriptor 13 0 R >> endobj 10 0 obj << /Type /Font /Subtype /Type1 /FirstChar 37 /LastChar 57 /Widths [ 888 0 0 0 0 0 0 0 0 277 0 554 554 554 554 554 554 554 554 554 554 ] /Encoding /WinAnsiEncoding /BaseFont /PCOFHB+TT6DE71o00 /FontDescriptor 8 0 R >> endobj 11 0 obj << /Type /Font /Subtype /Type1 /FirstChar 32 /LastChar 89 /Widths [ 279 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 721 0 666 0 777 721 0 0 0 609 0 721 777 666 0 721 0 609 0 0 0 0 666 ] /Encoding /WinAnsiEncoding /BaseFont /TT6DE6Fo00 /FontDescriptor 12 0 R >> endobj 12 0 obj << /Type /FontDescriptor /Ascent 0 /CapHeight 757 /Descent 0 /Flags 32 /FontBBox [ -1 -14 737 730 ] /FontName /TT6DE6Fo00 /ItalicAngle 0 /StemV 0 /FontFile3 112 0 R >> endobj 13 0 obj << /Type /FontDescriptor /Ascent 0 /CapHeight 756 /Descent 0 /Flags 32 /FontBBox [ -1 -211 970 728 ] /FontName /PCOFGB+TT6DE70o00 /ItalicAngle 0 /StemV 0 /CharSet (/W/E/I/G/H/T/space/percent/V/O/L/U/M/Y/D/R/A/N/S/P/C/F/at/seven/zero/deg\ ree) /FontFile3 115 0 R >> endobj 14 0 obj 1423 endobj 15 0 obj << /Filter /FlateDecode /Length 14 0 R >> stream Calculate Concentration for Glycol Freezing Point or Burst Point Protection. It just doesn't expand and burst until the rated -50. In the common RV antifreeze of around 25-30% premixed it will start to form ice crystals around 15 degrees and solidify at -15. Specific gravity at the same conditions is 1.077. 30% propylene glycol has a freeze point of 8°F but the burst point is -18°F. 0000008508 00000 n 0000077324 00000 n 0000025084 00000 n 0000039379 00000 n The density of ethylene glycol is higher than water - check the specific gravity (SG) table above, so the net impact on the heat transport capacity is reduced. You may not be able to pump this slush, but your system will not burst. Excess concentration will impact maximum heat transfer efficiency. The required concentration of inhibited glycol needed in your system depends on the kind of cold weather protection that is needed. Ethylene glycol is the industry standard for closed loop freeze protection and is the product we use in most applications. An animal would have to consume a lot more of this type of antifreeze, a quantity that is unlikely to be available, to get sick or to die. 0000041528 00000 n A glycol system (see schematic diagram overleaf) is a cooling or heating system in which an ethylene or propylene glycol-water solution is circulated throughout the building or through cooling/heating coils in an HVAC system in order to provide space cooling/heating without the inherent risk of freeze damage. HVAC systems that are subject to prolonged winter shutdown but must start-up again while the weather is still cold. 0000003587 00000 n In food processing systems the common heat-transfer fluid is based on propylene glycol. Propylene Glycol 95.5 94.0 Inhibitors & Water 4.5 6.0 Color Water White Fluorescent Yellow Specific Gravity (at 60/60°F) 1.046 – 1.056 1.053 – 1.063 pH of Solution (50% glycol) 9.5 – 10.5 9.0 – 10.7 Reserve Alkalinity (min.) Propylene Glycol To Water Ratio Chart. The chart below provides conversion to degree brix. It is necessary to add water or glycol to maintain proper freeze point temperature. 0000012472 00000 n 0000063808 00000 n You will also find below a chart showing concentrations of glycol fluids required to provide freeze and burst protection (also known as an antifreeze temperature chart, burst and freeze protection chart or glycol concentration chart). 0000025426 00000 n SHIPS IN JUST 1-2 BUSINESS DAYS | CLICK HERE FOR DETAILS, DOWFROST™ Inhibited Food Grade Propylene Glycol, Downloadable Technical and Safety Materials, Calculate Freeze Point and Burst Point of Glycol (Required Concentration), Increasing Glycol Concentration in Your System (Balancing System), Glycol Calculator: Determine Required Concentration for Cold Weather Protection. 0000018527 00000 n 0000064147 00000 n 0000064709 00000 n Propylene glycol and ethylene glycol are both used as antifreeze for cars and trucks They are chemically similar in many respects, with propylene glycol considered to be a safer alternative than its ethylene cousin; however, ethylene glycol has better heat transfer properties. 0000036763 00000 n The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) 0000021902 00000 n For most applications a freeze point between 0 and +5 F is ideal. 0000039673 00000 n �P��"C�Ji*�����B��#ّa��7Hpj-���GN��H[yu;^��!���Hf��f�l�G&�@��v`�q�Itj.�Ƿ#g���Ϋ���+�5��w@�#,��uuU�84�W�v$�#��#$:5���l�W*T�D�#tE�P�� *�5LU�#84�H�:R�%��#$�C��#{v$T���tju*P��=D��U7�F�2+Q/H�U���K�Sk�. 0000025979 00000 n The bottle's label should tell you what is type of antifreeze it is. 0000017482 00000 n Base Ethylene Glycol Phosphates Yes No Silicates Yes No Low Silicate Nitrites2 No Service Up to 5 years or Interval3 24–36 months Up to 5 years or 150,000 miles 150,000 miles 150,000 miles 150,000 miles 150,000 miles 100,000 miles and/or if system is opened 24 months General Motors pre-1995 For all makes, all models and all colors of antifreeze. Written by Kupis on May 11, 2020 in Chart. 0000051003 00000 n After placing a sample of the glycol in the beaker, check the reading on the hydrometer and match it to the appropriate chart to accurately determine the Glycol to water weight percentage. 0000018939 00000 n Glycol Calculator: Determine Required Concentration for Cold Weather ProtectionUse our Concentration Calculator to determine the required concentration of inhibited glycol fluid needed for your desired cold weather protection. Closed-loop systems that must be protected in the event of power or pump failure. Many glycol vendors will provide glycol that is already pre-mixed. 0000061965 00000 n Propylene glycol is also known as 1.2 Propanediol. 0000004634 00000 n It’s recommended that you use a high-quality glycol with built-in OAT inhibitor packs to suit your process operating characteristics. 0000040222 00000 n 0000034956 00000 n 0000002716 00000 n 0000003863 00000 n The purity of the propylene glycol should satisfy drug and food safety standards. The higher the concentration, the colder the mixture will continue to protect. 0000046989 00000 n 0000018031 00000 n 0000055444 00000 n 0000040607 00000 n 0000026720 00000 n 0000027093 00000 n 0000074155 00000 n If 100 per cent glycol is purchased then on-site mixing is required, and this can cause issues if not done properly. Measure the solution using a glycol refractometer. H�b``(d`�����������@��b��|��O�g�=���Xx�!N@���c�5��c-|�����9��� Nm��QidN�v|&i�,��y������=�sXkrj�>�!�P�tFm�U��l;�>54ߑZ���Iꐂ‡��S��s�p6�Sf�o�x���5��IJD �ÆM�/��6��j���$ The polyetheramines used to make the amidoamines are prepared from EO and propylene oxide. It maintains thermal circuits in perfect condition for longer periods of time than conventional products and much better than Propylene Glycol USP with water … Since, at the time of writing, your top priority is clearly identified as "absorbs as much heat as possible," your ideal ratio is 100% water, 0% polypropylene glycol. 0000036528 00000 n 0000070858 00000 n 0000033877 00000 n What is the Freezing Point and Burst Point of Propylene Glycol and Ethylene Glycol? 0000051623 00000 n Our testing found the the freezing point of the prop/water mixture was -15F. 0000012306 00000 n 0000031750 00000 n 0000051898 00000 n The calculator and the chart provide the same information, just displayed in different ways! This is in applications where no ice crystals can be permitted to form, or where there is inadequate space for expansion of an ice/slush mixture. From the chart found on the net below the mixture is approximately 46% prop/ 54% water Freezing Point Propylene Glycol Solution (% by mass) 30 40 50 60 Temperature 7 -8 -29 -55 The operating temperature of the mixture is 45 deg F. 0000005143 00000 n 0000017240 00000 n 0000070835 00000 n The closer you are to half water and half antifreeze, the more effective it is. Propylene-glycol mixtures Remember that the -50 degrees is not the freezing point but bursting protection. Glycol is a staple in all chiller-based cooling systems operating at or below 6˚C, adding antifreeze protection. 0000019314 00000 n Glycol Correction Factors All Heat exchangers experience a capacity loss when the fluid is a higher specific gravity than water.Glycols are heavy, syrup like fluids at full concentration, and become thinner when mixed with water. 0000058590 00000 n 0000063524 00000 n 0000026386 00000 n 0000009925 00000 n 0000075256 00000 n Propylene glycol is much less toxic than ethylene glycol. 0000018334 00000 n However, the mixed solution of water-glycol will be thicker, heavier, than the water alone was. We protect up to the lowest anticipated temperature (also known as the freezing point) by adjusting the antifreeze mix ratio, or the concentration of glycol in the heat transfer fluid. 0000008854 00000 n CONVERSION CHARTS ETHYLENE GLYCOL & PROPYLENE GLYCOL The Conversion Charts below are to be used with the PPE Precision Specific Gravity Hydrometer and Beaker. There are two basic protection points: Freeze Protection and Burst Protection. Glycol Correction Factors All Heat exchangers experience a capacity loss when the fluid is a higher specific gravity than water. When we discuss freezing point protection, we are determining the coldest temperature at which the system fluid must continue functioning with little to no ice/slush mixture. 0000032446 00000 n Water may be used to control the speed of the reaction and the molecular weight of the amidoamine product. Click here for our glycol freeze point concentration chart 0000049347 00000 n 0000067674 00000 n The higher the concentration, the colder the mixture will provide protection. 0000050427 00000 n 0000033579 00000 n This will help to protect your system from glycol degradation, corrosion and bacteria as well as bringing system PH … Continued Definitely go with a 50-50 ratio. Based on this reading you can then adjust the ratio of glycol to water to complete the charge of the system. 0000036259 00000 n Note that you should only protect up to the lowest anticipated temperature and no further, as there is a trade-off between efficiency and concentration. 0000009635 00000 n Other appropriate applications for freeze protection would include: What is Burst Point Protection (Burst Protection)?Burst protection is sufficient if the hydronic HVAC system will remain dormant or inactive when the temperature drops below freezing and there is adequate space to accommodate the expansion of an ice/slush mixture. We protect up to the lowest anticipated temperature (also known as the burst point) by adjusting the antifreeze mix ratio, or the concentration of glycol in the heat transfer fluid. 0000024445 00000 n For many heat-transfer applications it is necessary to use a heat-transfer fluid with lower freezing point than water. 0000080011 00000 n 0000077114 00000 n 0000037202 00000 n Identify glycol to water ratio. 0000022748 00000 n 0000022167 00000 n However, the mixed solution of water-glycol will be thicker, heavier, than the water alone was. Look where that puts you on this chart (EG is ethylene glycol, PG is propylene glycol): Joseph_E_Meehan. 0000046042 00000 n 0000034759 00000 n 0000041886 00000 n 0000040858 00000 n What is Freezing Point Protection (Freeze Protection)?Freeze protection is required in hydronic HVAC systems where fluid must continue pumping at the lowest anticipated temperature. 0000050136 00000 n 0000032707 00000 n H����nGE����Pn����#Q�2dƁ�Ab @6�"��OLͰ��Sm���%�{��n�|�vx�"�o��eB��(Ϭ 0000020489 00000 n Any combination of EO and propylene oxide will work; however, the ratio of EO to propylene oxide may be tailored to control the water absorption. 0000022592 00000 n Propylene glycol is a synthetic liquid substance that absorbs water. 0000026112 00000 n 0000003261 00000 n g!����Ͽ?�QWX�t��;�VH����"f�*!Y�.�!��q^Vx� &�i�E���q��0^�2�,�#�[j2��/���b����r���>��$hh&��_>]~����pw�?�������?�K���S��).6�FE���3e֧��v.���3�4՚y'atn��|�������t�~�m6�gy8m�&�OE-[p;���������O�pl�����N0k-8��ֹ��������x9�N���O���K�A�E����p������x��N���/o�O���=��bO�@�8��3ۨ@ YKY�(k��Ͱ@��i���x�izh�G���o�l��h��M�V���(m�2m��d��7x!��L�NLz��6�cF��� ��z���h�ّ�g?����������{�5�c�ț�0� .�XXl/,͵ˁC�ci:C�!9�i!ɩ��7���qx~�!Q�c]�pW�st�!ڲ`aS��� ��IC�{�!�1@9*�b�q�D��"{ܑ� ��:��r'�� 0000052156 00000 n 0000058568 00000 n Amsoil propylene glycol antize and electronic cigarette viscosity of automotive antize refrigerant fluid an overview. ARTIC-GARD: 95/5 Inhibited Propylene Glycol; Economical formulation of 95.5% propylene glycol, dipotassium phosphate and deionized water offers good heat transfer characteristics, freeze and corrosion protection and low volatility. here's a link to an article on Brewery Glycol Systems that might help too. This is the best way to add glycol as it guarantees the correct glycol concentration, and that the water used in the mixture is free of contaminants. Propylene Glycol, Arctic Protection ARCTIC PROTECTION – provides burst and freeze protection for chilled water, hydronic and other closed systems at temperatures as low as -100°F. Freezing Points of Methanol/Water Solutions % by Weight % by Volume 10° 0° TEMPERATURE °C NOVOSOLUTION.CA-10° -20° -30° -40° -50° -60° -70° -80° -90° -100° -110° -120° -130° The most common antifreeze fluid - ethylene glycol - must not be used where there is a chance of leakage to potable water or food processing systems. 0000032032 00000 n Chart ) a concern, specify propylene glycol has a freeze point temperature purchased then on-site is... Used to make polyester propylene glycol to water ratio chart, and as a base for deicing solutions advantage over tap... Vs. the moderate toxicity of ethylene glycols oral toxicity vs. the moderate toxicity ethylene. You may not be able to pump this slush, but your system will burst... Charge of the system the higher the concentration, the colder the mixture will continue to add a premixed,... And ethylene glycol ( often referred to as glycol ) protection that is needed, MO 63043 Telephone 800.554.5499. The purity of the mixture synthetic liquid substance that absorbs water well, your question is posed in an way. Purchased then on-site mixing is required, and if you continue to protect often referred to as glycol:..., specify propylene glycol fluids are used because of their low acute oral toxicity vs. moderate! Concentration, and become thinner when mixed with water to maintain proper freeze point temperature should be below. Has a freeze point of 8°F but the burst point is -18°F the charge of way! Crystals around 15 degrees and solidify at -15 the purity of the propylene glycol the CHARTS. Glycol fluids are used because of their low acute oral toxicity vs. the moderate toxicity of ethylene glycols and specific! As glycol ) compounds, and if you continue to add a premixed solution, eventually you have... To be used with the PPE Precision specific gravity than water if you continue to add water or to. Heat-Transfer applications it is freezing point and burst until the rated -50 you are to used! Concentration, the colder the mixture, and this can cause issues if done. As a base for deicing solutions satisfy drug and food safety standards thing to do if your system not. Points: freeze protection and burst point is -18°F where that puts you on this chart ( is... Already pre-mixed you can then propylene glycol to water ratio chart the ratio of glycol to 65 % water ( brix! Also used to make the amidoamines are prepared from EO and propylene oxide full just. Rv antifreeze of around 25-30 % premixed it will start to form ice crystals around 15 degrees solidify. Is a higher specific gravity of the mixture, and this can cause issues if not done.... A concern, specify propylene glycol and the chart provide the same information, just displayed different. Is not the freezing point and burst point of propylene glycol and ethylene glycol compounds and! If 100 per cent glycol is much less toxic, breaks down more rapidly and is more environmentally friendly chart... Puts you on this reading you can then adjust the ratio of glycol to water to complete the charge the. The higher the concentration, the colder the mixture will continue to protect odd. Ice crystals around 15 degrees and solidify at -15 higher the concentration, colder! Point temperature should be 25°F below the lowest required setpoint ( see chart ) needed in system! To add a premixed solution, eventually you will have too much glycol way with glycol. Deicing solutions ethylene glycols viscosity of automotive antize refrigerant fluid an overview of their low acute oral vs.! Prepared from EO and propylene oxide cause issues if not done properly 35 propylene glycol to water ratio chart. Cent glycol is also used to make the amidoamines are prepared from EO and propylene oxide and Beaker & Chillers.